Articles | Volume 18, issue 1
https://doi.org/10.5194/tc-18-307-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/tc-18-307-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
16 Jan 2024
Research article |
| 16 Jan 2024
| 16 Jan 2024
Climate change is rapidly deteriorating the climatic signal in Svalbard glaciers
CNR-Institute of Polar Science (ISP), Campus Scientifico, Via Torino 155, 30172 Venice-Mestre, Italy
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Federico Scoto
Institute of Atmospheric Sciences and Climate, ISAC-CNR. Campus Ecotekne, 73100 Lecce, Italy
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Catherine Larose
Institut des Géosciences de l'Environnement (IGE), Université Grenoble Alpes, CNRS, IRD, Grenoble INP, Grenoble 38000, France
Elena Barbaro
CNR-Institute of Polar Science (ISP), Campus Scientifico, Via Torino 155, 30172 Venice-Mestre, Italy
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Francois Burgay
Laboratory of Environmental Chemistry (LUC), Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Mats P. Bjorkman
Department of Earth Sciences, University of Gothenburg, Box 460, 40530 Göteborg, Sweden
David Cappelletti
Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, 06123 Perugia, Italy
Federico Dallo
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Fabrizio de Blasi
CNR-Institute of Polar Science (ISP), Campus Scientifico, Via Torino 155, 30172 Venice-Mestre, Italy
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Dmitry Divine
Norwegian Polar Institute, Tromsø 9296, Norway
Giuliano Dreossi
CNR-Institute of Polar Science (ISP), Campus Scientifico, Via Torino 155, 30172 Venice-Mestre, Italy
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Jacopo Gabrieli
CNR-Institute of Polar Science (ISP), Campus Scientifico, Via Torino 155, 30172 Venice-Mestre, Italy
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Elisabeth Isaksson
Norwegian Polar Institute, Tromsø 9296, Norway
Jack Kohler
Norwegian Polar Institute, Tromsø 9296, Norway
Tonu Martma
Department of Geology, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
Louise S. Schmidt
Department of Geosciences, University of Oslo, Oslo, Norway
Thomas V. Schuler
Department of Geosciences, University of Oslo, Oslo, Norway
Barbara Stenni
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Clara Turetta
CNR-Institute of Polar Science (ISP), Campus Scientifico, Via Torino 155, 30172 Venice-Mestre, Italy
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Venice, Italy
Bartłomiej Luks
Institute of Geophysics, Polish Academy of Sciences, Księcia Janusza 64, 01-452 Warsaw, Poland
Mathieu Casado
Laboratoire des Sciences du Climat et de l'Environnement, CEA–CNRS–UVSQ–Paris-Saclay–IPSL, Gif-sur-Yvette, France
Jean-Charles Gallet
Norwegian Polar Institute, Tromsø 9296, Norway
Related authors
Elena Barbaro, Francisco Ardini, Silvia Becagli, Stefano Bertinetti, Federica Bruschi, Giulia Calzolai, Alice Cavaliere, David Cappelletti, Stefano Crocchianti, Matteo Feltracco, Andrea Gambaro, Fabio Giardi, Stefania Gilardoni, Marco Grotti, Dominic Heslin-Rees, Radovan Krejci, Mery Malandrino, Matilde Mataloni, Simonetta Montaguti, Silvia Nava, Marco Paglione, Matteo Rinaldi, Chiara Ripa, Mirko Severi, Andrea Spolaor, Rita Traversi, Hilde Uggerud, Giulio Verazzo, Tessa Viglezio, Karl Espen Yttri, Wenche Aas, and Mauro Mazzola
EGUsphere, https://doi.org/10.5194/egusphere-2026-1467, https://doi.org/10.5194/egusphere-2026-1467, 2026
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Short summary
This study analyzes how Arctic atmospheric layering affects aerosol distribution by comparing data from the Gruvebadet (61 m) and Zeppelin (472 m) observatories in Svalbard. Results show consistent levels of human-made pollutants like sulfate at both heights, confirming long-range transport from Eurasia. Conversely, natural biogenic tracers were more concentrated at lower altitudes. By integrating chemical and meteorological data, the research highlights the need for multi-level monitoring.
Dorothea Elisabeth Moser, Andrea Spolaor, Federico Scoto, and Elizabeth R. Thomas
EGUsphere, https://doi.org/10.5194/egusphere-2026-399, https://doi.org/10.5194/egusphere-2026-399, 2026
Short summary
Short summary
The Arctic is warming rapidly, and winter rain-on-snow events are becoming more common. These events can alter snow layers and disturb climate information stored in glaciers. We studied how small rain-on-snow events affect snow structure and water isotopes near Ny-Ålesund, Svalbard. Field experiments show that meltwater flow creates complex features, but isotope changes remain confined to them, meaning seasonal climate signals can still be preserved where enough snow accumulates.
François Burgay, Haley Derrod, Tobias Erhardt, Federico Scoto, Delia Segato, Niccolò Maffezzoli, Federico Dallo, Daniele Zannoni, Azzurra Spagnesi, Helle-Astrid Kjær, Hubertus Fischer, Cristiano Varin, Carlo Barbante, and Andrea Spolaor
EGUsphere, https://doi.org/10.5194/egusphere-2025-6339, https://doi.org/10.5194/egusphere-2025-6339, 2026
Short summary
Short summary
With this work, we provide important evidence that the Iron Hypothesis is less effective than originally thought in the Northern Hemisphere due to alkaline aerosol conditions. Therefore in the High-Nutrient Low-Chlorophyll North Pacific Ocean, other factors such as sea-ice extent or iron remobilization from sediments may have played a more relevant role than atmospheric iron fertilization in modulating marine primary productivity.
Azzurra Spagnesi, Elena Barbaro, Matteo Feltracco, Federico Scoto, Marco Vecchiato, Massimiliano Vardè, Mauro Mazzola, François Burgay, Federica Bruschi, Clara Jule Marie Hoppe, Allison Bailey, Andrea Gambaro, Carlo Barbante, and Andrea Spolaor
Atmos. Chem. Phys., 25, 16215–16232, https://doi.org/10.5194/acp-25-16215-2025, https://doi.org/10.5194/acp-25-16215-2025, 2025
Short summary
Short summary
Svalbard is ideal for studying how warming affects snow’s seasonal chemistry. By comparing the snow chemical composition of the 2019–2020 season with 2018–2019 and 2020–2021, we provide an overview of the seasonal and interannual variability of several chemical species on the Svalbard snowpack, furnishing insights into the interplay between short-term meteorological variability and the long-term climatic impacts of climate changes.
Agnese Petteni, Mathieu Casado, Christophe Leroy-Dos Santos, Amaelle Landais, Niels Dutrievoz, Cécile Agosta, Pete D. Akers, Joel Savarino, Andrea Spolaor, Massimo Frezzotti, and Barbara Stenni
EGUsphere, https://doi.org/10.5194/egusphere-2025-3188, https://doi.org/10.5194/egusphere-2025-3188, 2025
Short summary
Short summary
We investigated the isotopic composition of surface snow in a previously unexplored region of East Antarctica to understand how differences in air mass origin influence its variability. By comparing observations with model data, we validated the model and quantified the impact of post-depositional processes at the snow–atmosphere interface. Our results offer valuable insights for reconstructing past temperatures from ice cores.
Adrien Ooms, Mathieu Casado, Ghislain Picard, Laurent Arnaud, Maria Hörhold, Andrea Spolaor, Rita Traversi, Joel Savarino, Patrick Ginot, Pete Akers, Birthe Twarloh, and Valérie Masson-Delmotte
EGUsphere, https://doi.org/10.5194/egusphere-2025-3259, https://doi.org/10.5194/egusphere-2025-3259, 2025
Short summary
Short summary
This work presents a new approach to the estimation of accumulation rates at Concordia Station, East-Antarctica, for the last 20 years, from a new data set of chemical tracers and snow micro-scale properties measured in a snow trench. Multi-annual and meter to decameter scale variability of accumulation rates are compared again in-situ measurements of surface laser scanner and stake farm, with very good agreement. This further constrains SMB estimation for Antarctica at high temporal resolution.
Luca Teruzzi, Andrea Spolaor, David Cappelletti, Claudio Artoni, and Marco A. C. Potenza
EGUsphere, https://doi.org/10.5194/egusphere-2024-2057, https://doi.org/10.5194/egusphere-2024-2057, 2024
Preprint archived
Short summary
Short summary
We present a novel probe to measure visible light penetration into the uppermost snow layers with high spatial resolution. The probe is designed to be lightweight and robust to be exploited in extreme environments, extrapolating to the UV region. Such experimental approach will allow to fill the gap in the current understanding of sunlight propagation through the snowpack, often based on numerical approaches, improving the understanding of those processes occurring in snow even in the UV region.
Tessa R. Vance, Nerilie J. Abram, Alison S. Criscitiello, Camilla K. Crockart, Aylin DeCampo, Vincent Favier, Vasileios Gkinis, Margaret Harlan, Sarah L. Jackson, Helle A. Kjær, Chelsea A. Long, Meredith K. Nation, Christopher T. Plummer, Delia Segato, Andrea Spolaor, and Paul T. Vallelonga
Clim. Past, 20, 969–990, https://doi.org/10.5194/cp-20-969-2024, https://doi.org/10.5194/cp-20-969-2024, 2024
Short summary
Short summary
This study presents the chronologies from the new Mount Brown South ice cores from East Antarctica, which were developed by counting annual layers in the ice core data and aligning these to volcanic sulfate signatures. The uncertainty in the dating is quantified, and we discuss initial results from seasonal cycle analysis and mean annual concentrations. The chronologies will underpin the development of new proxy records for East Antarctica spanning the past millennium.
Simone Ventisette, Samuele Baldini, Claudio Artoni, Silvia Becagli, Laura Caiazzo, Barbara Delmonte, Massimo Frezzotti, Raffaello Nardin, Joel Savarino, Mirko Severi, Andrea Spolaor, Barbara Stenni, and Rita Traversi
EGUsphere, https://doi.org/10.5194/egusphere-2023-393, https://doi.org/10.5194/egusphere-2023-393, 2023
Preprint archived
Short summary
Short summary
The paper reports the spatial variability of concentration and fluxes of chemical impurities in superficial snow over unexplored area of the East Antarctic ice sheet. Pinatubo and Puyehue-Cordón Caulle volcanic eruptions in non-sea salt sulfate and dust snow pits record were used to achieve the accumulation rates. Deposition (wet, dry and uptake from snow surface) and post deposition processes are constrained. These knowledges are fundamental in Antarctic ice cores stratigraphies interpretation.
Niccolò Maffezzoli, Eliza Cook, Willem G. M. van der Bilt, Eivind N. Støren, Daniela Festi, Florian Muthreich, Alistair W. R. Seddon, François Burgay, Giovanni Baccolo, Amalie R. F. Mygind, Troels Petersen, Andrea Spolaor, Sebastiano Vascon, Marcello Pelillo, Patrizia Ferretti, Rafael S. dos Reis, Jefferson C. Simões, Yuval Ronen, Barbara Delmonte, Marco Viccaro, Jørgen Peder Steffensen, Dorthe Dahl-Jensen, Kerim H. Nisancioglu, and Carlo Barbante
The Cryosphere, 17, 539–565, https://doi.org/10.5194/tc-17-539-2023, https://doi.org/10.5194/tc-17-539-2023, 2023
Short summary
Short summary
Multiple lines of research in ice core science are limited by manually intensive and time-consuming optical microscopy investigations for the detection of insoluble particles, from pollen grains to volcanic shards. To help overcome these limitations and support researchers, we present a novel methodology for the identification and autonomous classification of ice core insoluble particles based on flow image microscopy and neural networks.
François Burgay, Rafael Pedro Fernández, Delia Segato, Clara Turetta, Christopher S. Blaszczak-Boxe, Rachael H. Rhodes, Claudio Scarchilli, Virginia Ciardini, Carlo Barbante, Alfonso Saiz-Lopez, and Andrea Spolaor
The Cryosphere, 17, 391–405, https://doi.org/10.5194/tc-17-391-2023, https://doi.org/10.5194/tc-17-391-2023, 2023
Short summary
Short summary
The paper presents the first ice-core record of bromine (Br) in the Antarctic plateau. By the observation of the ice core and the application of atmospheric chemical models, we investigate the behaviour of bromine after its deposition into the snowpack, with interest in the effect of UV radiation change connected to the formation of the ozone hole, the role of volcanic deposition, and the possible use of Br to reconstruct past sea ice changes from ice core collect in the inner Antarctic plateau.
Raffaello Nardin, Mirko Severi, Alessandra Amore, Silvia Becagli, Francois Burgay, Laura Caiazzo, Virginia Ciardini, Giuliano Dreossi, Massimo Frezzotti, Sang-Bum Hong, Ishaq Khan, Bianca Maria Narcisi, Marco Proposito, Claudio Scarchilli, Enricomaria Selmo, Andrea Spolaor, Barbara Stenni, and Rita Traversi
Clim. Past, 17, 2073–2089, https://doi.org/10.5194/cp-17-2073-2021, https://doi.org/10.5194/cp-17-2073-2021, 2021
Short summary
Short summary
The first step to exploit all the potential information buried in ice cores is to produce a reliable age scale. Based on chemical and isotopic records from the 197 m Antarctic GV7(B) ice core, accurate dating was achieved and showed that the archive spans roughly the last 830 years. The relatively high accumulation rate allowed us to use the non-sea-salt sulfate seasonal pattern to count annual layers. The accumulation rate reconstruction exhibited a slight increase since the 18th century.
Federico Dallo, Daniele Zannoni, Jacopo Gabrieli, Paolo Cristofanelli, Francescopiero Calzolari, Fabrizio de Blasi, Andrea Spolaor, Dario Battistel, Rachele Lodi, Warren Raymond Lee Cairns, Ann Mari Fjæraa, Paolo Bonasoni, and Carlo Barbante
Atmos. Meas. Tech., 14, 6005–6021, https://doi.org/10.5194/amt-14-6005-2021, https://doi.org/10.5194/amt-14-6005-2021, 2021
Short summary
Short summary
Our work showed how the adoption of low-cost technology could be useful in environmental research and monitoring. We focused our work on tropospheric ozone, but we also showed how to make a general purpose low-cost sensing system which may be adapted and optimised to be used in many other case studies. Given the importance of providing quality data, we put a lot of effort in the sensor's calibration, and we believe that our results show how to exploit the potential of the low-cost technology.
Michele Bertò, David Cappelletti, Elena Barbaro, Cristiano Varin, Jean-Charles Gallet, Krzysztof Markowicz, Anna Rozwadowska, Mauro Mazzola, Stefano Crocchianti, Luisa Poto, Paolo Laj, Carlo Barbante, and Andrea Spolaor
Atmos. Chem. Phys., 21, 12479–12493, https://doi.org/10.5194/acp-21-12479-2021, https://doi.org/10.5194/acp-21-12479-2021, 2021
Short summary
Short summary
We present the daily and seasonal variability in black carbon (BC) in surface snow inferred from two specific experiments based on the hourly and daily time resolution sampling during the Arctic spring in Svalbard. These unique data sets give us, for the first time, the opportunity to evaluate the associations between the observed surface snow BC mass concentration and a set of predictors corresponding to the considered meteorological and snow physico-chemical parameters.
Delia Segato, Maria Del Carmen Villoslada Hidalgo, Ross Edwards, Elena Barbaro, Paul Vallelonga, Helle Astrid Kjær, Marius Simonsen, Bo Vinther, Niccolò Maffezzoli, Roberta Zangrando, Clara Turetta, Dario Battistel, Orri Vésteinsson, Carlo Barbante, and Andrea Spolaor
Clim. Past, 17, 1533–1545, https://doi.org/10.5194/cp-17-1533-2021, https://doi.org/10.5194/cp-17-1533-2021, 2021
Short summary
Short summary
Human influence on fire regimes in the past is poorly understood, especially at high latitudes. We present 5 kyr of fire proxies levoglucosan, black carbon, and ammonium in the RECAP ice core in Greenland and reconstruct for the first time the fire regime in the high North Atlantic region, comprising coastal east Greenland and Iceland. Climate is the main driver of the fire regime, but at 1.1 kyr BP a contribution may be made by the deforestation resulting from Viking colonization of Iceland.
Elena Barbaro, Francisco Ardini, Silvia Becagli, Stefano Bertinetti, Federica Bruschi, Giulia Calzolai, Alice Cavaliere, David Cappelletti, Stefano Crocchianti, Matteo Feltracco, Andrea Gambaro, Fabio Giardi, Stefania Gilardoni, Marco Grotti, Dominic Heslin-Rees, Radovan Krejci, Mery Malandrino, Matilde Mataloni, Simonetta Montaguti, Silvia Nava, Marco Paglione, Matteo Rinaldi, Chiara Ripa, Mirko Severi, Andrea Spolaor, Rita Traversi, Hilde Uggerud, Giulio Verazzo, Tessa Viglezio, Karl Espen Yttri, Wenche Aas, and Mauro Mazzola
EGUsphere, https://doi.org/10.5194/egusphere-2026-1467, https://doi.org/10.5194/egusphere-2026-1467, 2026
This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
Short summary
Short summary
This study analyzes how Arctic atmospheric layering affects aerosol distribution by comparing data from the Gruvebadet (61 m) and Zeppelin (472 m) observatories in Svalbard. Results show consistent levels of human-made pollutants like sulfate at both heights, confirming long-range transport from Eurasia. Conversely, natural biogenic tracers were more concentrated at lower altitudes. By integrating chemical and meteorological data, the research highlights the need for multi-level monitoring.
Ida Lundtorp Olsen, Henriette Skourup, Heidi Sallila, Stefan Hendricks, Renée Mie Fredensborg Hansen, Stefan Kern, Stephan Paul, Marion Bocquet, Sara Fleury, Dmitry Divine, and Eero Rinne
Earth Syst. Sci. Data, 18, 2469–2505, https://doi.org/10.5194/essd-18-2469-2026, https://doi.org/10.5194/essd-18-2469-2026, 2026
Short summary
Short summary
Discover the latest advancements in sea ice research with our comprehensive Climate Change Initiative (CCI) sea ice thickness (SIT) Round Robin Data Package (RRDP). This pioneering collection contains reference measurements from 1960 to 2024 from airborne sensors, buoys, visual observations and sonar and covers the polar regions from 1993 to 2024, providing crucial reference measurements for validating satellite-derived sea ice thickness.
Titouan Tcheng, Elise Fourré, Christophe Leroy-Dos Santos, Frédéric Parrenin, Emmanuel Le Meur, Frédéric Prié, Olivier Jossoud, Roxanne Jacob, Bénédicte Minster, Olivier Magand, Cécile Agosta, Niels Dutrievoz, Vincent Favier, Léa Baubant, Coralie Lassalle-Bernard, Mathieu Casado, Martin Werner, Alexandre Cauquoin, Laurent Arnaud, Bruno Jourdain, Ghislain Picard, Marie Bouchet, and Amaëlle Landais
The Cryosphere, 20, 1599–1618, https://doi.org/10.5194/tc-20-1599-2026, https://doi.org/10.5194/tc-20-1599-2026, 2026
Short summary
Short summary
Studying Antarctic ice cores is crucial to assess past climate changes, as they hold historical climate data. This study examines multiple ice cores from three sites in coastal Adélie Land to see if combining cores improves data interpretability. It does at two sites, but at a third, wind-driven snow layer mixing limited benefits. We show that using multiple ice cores from one location can better uncover climate history, especially in areas with less wind disturbance.
Sarah Schwieger, Jan Dietrich, Mats P. Björkman, Judith M. Sarneel, Bowen Li, Joel White, Inge H. J. Althuizen, Christina Biasi, Robert G. Björk, Hanna Böhner, Brage Bremset Hansen, Michele Carbognani, Giorgio Chiari, Casper T. Christiansen, Elisabeth J. Cooper, Hans Cornelissen, Ludovica D'Imperio, Ellen Dorrepaal, Bo Elberling, Patrick Faubert, Ned Fetcher, T'ai G. W. Forte, Joseph Gaudard, Konstantin Gavazov, Zhen-Huan Guan, Jón Guðmundsson, Siri V. Haugum, Jin-Sheng He, Caitlin Hicks Pries, Mark Hovenden, Simone I. Lang, Gus Jespersen, Ingibjörg S. Jónsdóttir, Ji Young Jung, Olga Khitun, Birgitte Kortegaard Danielsen, Richard Lamprecht, Mathilde Le Moullec, Hanna Lee, Maija E. Marushchak, Anders Michelsen, Tariq Munir, Eero Myrsky, Kevin K. Newsham, Marion Nyberg, Steven F. Oberbauer, Paulo Olivas, Johan Olofsson, Hlynur Óskarsson, Thomas C. Parker, Matteo Petit Bon, Alessandro Petraglia, Emily Pickering Pedersen, Katrine Raundrup, Nynne R. Ravn, Riikka Rinnan, Heidi Rodenhizer, Ingvild Ryde, Alejandro Salazar, Niels M. Schmidt, Ted Schuur, Sofie Sjögersten, Cecilie Skov Nielsen, Sari Stark, Maria Strack, Jianwu Tang, Sylvia Toet, Anne Tolvanen, Maria Väisänen, Richard Van Logtestijn, Vigdis Vandvik, Carolina Voigt, Josefine Walz, Jeffrey M. Welker, Yuanhe Yang, Henni Ylänne, and Sybryn L. Maes
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2025-837, https://doi.org/10.5194/essd-2025-837, 2026
Preprint under review for ESSD
Short summary
Short summary
Arctic and alpine tundra ecosystems are warming rapidly, yet measurements of how they release carbon dioxide to the atmosphere remain scarce. We compiled field measurements of ecosystem respiration from warming experiments across tundra regions worldwide. By combining respiration data with information on climate, vegetation, and soils, this database improves our ability to understand and predict how tundra carbon cycling responds to climate warming and feeds back to the global climate system.
Emma Samin, Amaëlle Landais, Elise Fourré, Mathieu Casado, Adrien Ooms, Niels Dutrievoz, Cécile Agosta, Valérie Masson-Delmotte, Thomas Combacal, Elsa Gautier, and Bénédicte Minster
EGUsphere, https://doi.org/10.5194/egusphere-2026-871, https://doi.org/10.5194/egusphere-2026-871, 2026
This preprint is open for discussion and under review for The Cryosphere (TC).
Short summary
Short summary
This study presents the water isotope profiles of two firn cores drilled at Little Dome C (LDC) in Antarctica and dated by identifying volcanic events, which enabled us to determine an accumulation rate at LDC of 24 mmwe.yr-1. Comparison of a virtual firn core model with these data allowed us to study the surface processes responsible for isotopic variability in firn. We therefore suggest that future models consider the mixing of the surface layer and re-quantify diffusion.
Thomas Lauwers, Elise Fourré, Niels Dutrievoz, Cécile Agosta, Olivier Jossoud, Bénédicte Minster, Frédéric Prié, Olivier Cattani, Valérie Masson-Delmotte, Mathieu Casado, Christophe Genthon, and Amaëlle Landais
EGUsphere, https://doi.org/10.5194/egusphere-2026-256, https://doi.org/10.5194/egusphere-2026-256, 2026
Short summary
Short summary
This study presents a new method to measure the isotopic composition of snowfall and atmospheric water vapor in Antarctica. With a single laser instrument, it enables continuous, high-time-resolution observations without human intervention. Tests in East Antarctica show a very good agreement with conventionnal snow sampling. This new sampling method opens new opportunities to better understand snowfall formation, improve climate models, and refine the interpretation of ice core climate records.
Dorothea Elisabeth Moser, Andrea Spolaor, Federico Scoto, and Elizabeth R. Thomas
EGUsphere, https://doi.org/10.5194/egusphere-2026-399, https://doi.org/10.5194/egusphere-2026-399, 2026
Short summary
Short summary
The Arctic is warming rapidly, and winter rain-on-snow events are becoming more common. These events can alter snow layers and disturb climate information stored in glaciers. We studied how small rain-on-snow events affect snow structure and water isotopes near Ny-Ålesund, Svalbard. Field experiments show that meltwater flow creates complex features, but isotope changes remain confined to them, meaning seasonal climate signals can still be preserved where enough snow accumulates.
Niels Dutrievoz, Cécile Agosta, Cécile Davrinche, Amaëlle Landais, Sebastien Nguyen, Étienne Vignon, Inès Ollivier, Christophe Leroy-Dos Santos, Elise Fourré, Mathieu Casado, Jonathan Wille, Vincent Favier, Bénédicte Minster, and Frédéric Prié
The Cryosphere, 20, 1025–1046, https://doi.org/10.5194/tc-20-1025-2026, https://doi.org/10.5194/tc-20-1025-2026, 2026
Short summary
Short summary
In December 2018, an atmospheric river event from the Atlantic reached Dome C, East Antarctica, causing a +18 °C warming, tripled water vapour, and a strong isotopic anomaly in water vapour (+ 17 ‰ for δ18O) at the surface. During the peak of the event, we found 70 % of the water vapour came from local snow sublimation, and 30 % from the atmospheric river itself, highlighting both long-range moisture advection and interactions between the boundary layer and the snowpack.
François Burgay, Haley Derrod, Tobias Erhardt, Federico Scoto, Delia Segato, Niccolò Maffezzoli, Federico Dallo, Daniele Zannoni, Azzurra Spagnesi, Helle-Astrid Kjær, Hubertus Fischer, Cristiano Varin, Carlo Barbante, and Andrea Spolaor
EGUsphere, https://doi.org/10.5194/egusphere-2025-6339, https://doi.org/10.5194/egusphere-2025-6339, 2026
Short summary
Short summary
With this work, we provide important evidence that the Iron Hypothesis is less effective than originally thought in the Northern Hemisphere due to alkaline aerosol conditions. Therefore in the High-Nutrient Low-Chlorophyll North Pacific Ocean, other factors such as sea-ice extent or iron remobilization from sediments may have played a more relevant role than atmospheric iron fertilization in modulating marine primary productivity.
Polona Itkin, Evgenii Salganik, Dmitry V. Divine, Arttu Jutila, Christian Katlein, Mara Neudert, Ian A. Raphael, and Robert Ricker
EGUsphere, https://doi.org/10.5194/egusphere-2025-6081, https://doi.org/10.5194/egusphere-2025-6081, 2025
Short summary
Short summary
We studied how Arctic ice ridges grow and change through winter and spring using a sensor that measures ice thickness without drilling. By comparing these measurements with data from aircraft, underwater surveys, and field work, we show that the sensor can detect both the full ridge thickness and its solid inner core. Our results reveal slow winter strengthening of ridges and highlight this method's value for understanding ice conditions and ecosystems.
Antonio Donateo, Gianluca Pappaccogli, Federico Scoto, Maurizio Busetto, Francesca L. Lovisco, Natalie Brett, Douglas Keller, Brice Barret, Elsa Dieudonné, Roman Pohorsky, Andrea Baccarini, Slimane Bekki, Jean-Christophe Raut, Julia Schmale, Kathy S. Law, Steve R. Arnold, Javier G. Fochesatto, William R. Simpson, and Stefano Decesari
Atmos. Chem. Phys., 25, 18129–18156, https://doi.org/10.5194/acp-25-18129-2025, https://doi.org/10.5194/acp-25-18129-2025, 2025
Short summary
Short summary
A study in Fairbanks, Alaska, measured winter aerosol fluxes on snow. Both emission and deposition occurred, with larger particles settling faster. Weather influenced dispersion and deposition, while wind-driven turbulence enhanced deposition despite stable conditions. Results show aerosol accumulation in snow impacts pollution and snowmelt. Findings help improve aerosol models and pollution studies in cold cities.
Dmitry V. Divine, Sebastian Gerland, and Mats A. Granskog
EGUsphere, https://doi.org/10.5194/egusphere-2025-5511, https://doi.org/10.5194/egusphere-2025-5511, 2025
This preprint is open for discussion and under review for The Cryosphere (TC).
Short summary
Short summary
We present seven years of sea-ice draft measurements from sonar instruments in the Fram Strait, the region between Svalbard and Greenland where most of Arctic sea-ice export occurs. The data show that smooth, level ice makes up about half of ice cover, while ridges – formed when ice floes collide – are frequent and can contain up to half of the total ice volume. Ridges are becoming fewer and shallower, with smaller ridges growing in importance as Arctic ice thins.
Azzurra Spagnesi, Elena Barbaro, Matteo Feltracco, Federico Scoto, Marco Vecchiato, Massimiliano Vardè, Mauro Mazzola, François Burgay, Federica Bruschi, Clara Jule Marie Hoppe, Allison Bailey, Andrea Gambaro, Carlo Barbante, and Andrea Spolaor
Atmos. Chem. Phys., 25, 16215–16232, https://doi.org/10.5194/acp-25-16215-2025, https://doi.org/10.5194/acp-25-16215-2025, 2025
Short summary
Short summary
Svalbard is ideal for studying how warming affects snow’s seasonal chemistry. By comparing the snow chemical composition of the 2019–2020 season with 2018–2019 and 2020–2021, we provide an overview of the seasonal and interannual variability of several chemical species on the Svalbard snowpack, furnishing insights into the interplay between short-term meteorological variability and the long-term climatic impacts of climate changes.
Henning Åkesson, Kamilla Hauknes Sjursen, Thomas Vikhamar Schuler, Thorben Dunse, Liss Marie Andreassen, Mette Kusk Gillespie, Benjamin Aubrey Robson, Thomas Schellenberger, and Jacob Clement Yde
The Cryosphere, 19, 5871–5902, https://doi.org/10.5194/tc-19-5871-2025, https://doi.org/10.5194/tc-19-5871-2025, 2025
Short summary
Short summary
We model the historical and future evolution of the Jostedalsbreen ice cap in Norway, projecting substantial and largely irreversible mass loss for the 21st century, and that the ice cap will split into three parts. Further mass loss is in the pipeline, with a disappearance during the 22nd century under high emissions. Our study demonstrates an approach to model complex ice masses, highlights uncertainties due to precipitation, and calls for further research on long-term future glacier change.
Claudio Stefanini, Barbara Stenni, Mauro Masiol, Giuliano Dreossi, Vincent Favier, Francesca Becherini, Claudio Scarchilli, Virginia Ciardini, Gabriele Carugati, and Massimo Frezzotti
The Cryosphere, 19, 5781–5799, https://doi.org/10.5194/tc-19-5781-2025, https://doi.org/10.5194/tc-19-5781-2025, 2025
Short summary
Short summary
This study analyzes snow accumulation near Concordia Station in Antarctica (3233 m) to estimate yearly snow accumulation. Data from Italian and French stake farms show strong variation due to wind and surface features. On average, 7–8 cm of snow accumulate yearly near the Station. The study also compares results with climate models and explores whether the station buildings affect measurements.
Aurora Patchett, Louise Rütting, Tobias Rütting, Samuel Bodé, Sara Hallin, Jaanis Juhanson, C. Florian Stange, Mats P. Björkman, Pascal Boeckx, Gunhild Rosqvist, and Robert G. Björk
Biogeosciences, 22, 6841–6860, https://doi.org/10.5194/bg-22-6841-2025, https://doi.org/10.5194/bg-22-6841-2025, 2025
Short summary
Short summary
This study explores how different types of fungi and plant species affect nitrogen cycling in Arctic soils. By removing certain plants, we found that fungi associated with shrubs speed up nitrogen processes more than those with grasses. Dominant plant species enhance nitrogen recycling, while rare species increase nitrogen loss. These findings help predict how Arctic ecosystems respond to climate change, highlighting the importance of fungi and plant diversity in regulating ecosystem processes.
Inès Ollivier, Thomas Lauwers, Niels Dutrievoz, Cécile Agosta, Mathieu Casado, Elise Fourré, Christophe Genthon, Olivier Jossoud, Frédéric Prié, Hans Christian Steen-Larsen, and Amaëlle Landais
Earth Syst. Sci. Data, 17, 5655–5674, https://doi.org/10.5194/essd-17-5655-2025, https://doi.org/10.5194/essd-17-5655-2025, 2025
Short summary
Short summary
We present a novel 2.5-month record of the atmospheric water vapour isotopic composition during the austral summer 2023–2024 at Concordia Station on the Antarctic Plateau. We show that two independent laser spectrometers accurately record the diurnal variability of the atmospheric water vapour ?18O, ?D, and d-excess. We compare the measurements against outputs of the isotope-enabled general circulation model LMDZ6-iso to show how the data can be used to evaluate such models.
Sławomir Sułowicz, Krzysztof Zawierucha, Anna Markowicz, Krystyna Kozioł, Wiktoria Zientak, Adam Nawrot, Krzesimir Tomaszewski, Bartłomiej Luks, and Catherine Larose
EGUsphere, https://doi.org/10.5194/egusphere-2025-5033, https://doi.org/10.5194/egusphere-2025-5033, 2025
Short summary
Short summary
Our research shows that animals such as birds and mammals shaping the bacteria community structure found in Arctic snow. By analyzing snow samples from coastal Spitsbergen, we found that microbes linked to animal waste were common and influenced the types of bacteria present. This suggests that wildlife, not just wind or air, helps bring microbes into snow. Understanding this helps us better predict how Arctic ecosystems respond to environmental change and how life adapts in extreme conditions.
Anna-Maria Virkkala, Isabel Wargowsky, Judith Vogt, McKenzie A. Kuhn, Simran Madaan, Richard O'Keefe, Tiffany Windholz, Kyle A. Arndt, Brendan M. Rogers, Jennifer D. Watts, Kelcy Kent, Mathias Göckede, David Olefeldt, Gerard Rocher-Ros, Edward A. G. Schuur, David Bastviken, Kristoffer Aalstad, Kelly Aho, Joonatan Ala-Könni, Haley Alcock, Inge Althuizen, Christopher D. Arp, Jun Asanuma, Katrin Attermeyer, Mika Aurela, Sivakiruthika Balathandayuthabani, Alan Barr, Maialen Barret, Ochirbat Batkhishig, Christina Biasi, Mats P. Björkman, Andrew Black, Elena Blanc-Betes, Pascal Bodmer, Julia Boike, Abdullah Bolek, Frédéric Bouchard, Ingeborg Bussmann, Lea Cabrol, Eleonora Canfora, Sean Carey, Karel Castro-Morales, Namyi Chae, Andres Christen, Torben R. Christensen, Casper T. Christiansen, Housen Chu, Graham Clark, Francois Clayer, Patrick Crill, Christopher Cunada, Scott J. Davidson, Joshua F. Dean, Sigrid Dengel, Matteo Detto, Catherine Dieleman, Florent Domine, Egor Dyukarev, Colin Edgar, Bo Elberling, Craig A. Emmerton, Eugenie Euskirchen, Grant Falvo, Thomas Friborg, Michelle Garneau, Mariasilvia Giamberini, Mikhail V. Glagolev, Miquel A. Gonzalez-Meler, Gustaf Granath, Jón Guðmundsson, Konsta Happonen, Yoshinobu Harazono, Lorna Harris, Josh Hashemi, Nicholas Hasson, Janna Heerah, Liam Heffernan, Manuel Helbig, Warren Helgason, Michal Heliasz, Greg Henry, Geert Hensgens, Tetsuya Hiyama, Macall Hock, David Holl, Beth Holmes, Jutta Holst, Thomas Holst, Gabriel Hould-Gosselin, Elyn Humphreys, Jacqueline Hung, Jussi Huotari, Hiroki Ikawa, Danil V. Ilyasov, Mamoru Ishikawa, Go Iwahana, Hiroki Iwata, Marcin Antoni Jackowicz-Korczynski, Joachim Jansen, Järvi Järveoja, Vincent E. J. Jassey, Rasmus Jensen, Katharina Jentzsch, Robert G. Jespersen, Carl-Fredrik Johannesson, Chersity P. Jones, Anders Jonsson, Ji Young Jung, Sari Juutinen, Evan Kane, Jan Karlsson, Sergey Karsanaev, Kuno Kasak, Julia Kelly, Kasha Kempton, Marcus Klaus, George W. Kling, Natacha Kljun, Jacqueline Knutson, Hideki Kobayashi, John Kochendorfer, Kukka-Maaria Kohonen, Pasi Kolari, Mika Korkiakoski, Aino Korrensalo, Pirkko Kortelainen, Egle Koster, Kajar Koster, Ayumi Kotani, Praveena Krishnan, Juliya Kurbatova, Lars Kutzbach, Min Jung Kwon, Ethan D. Kyzivat, Jessica Lagroix, Theodore Langhorst, Elena Lapshina, Tuula Larmola, Klaus S. Larsen, Isabelle Laurion, Justin Ledman, Hanna Lee, A. Joshua Leffler, Lance Lesack, Anders Lindroth, David Lipson, Annalea Lohila, Efrén López-Blanco, Vincent L. St. Louis, Erik Lundin, Misha Luoto, Takashi Machimura, Marta Magnani, Avni Malhotra, Marja Maljanen, Ivan Mammarella, Elisa Männistö, Luca Belelli Marchesini, Phil Marsh, Pertti J. Martkainen, Maija E. Marushchak, Mikhail Mastepanov, Alex Mavrovic, Trofim Maximov, Christina Minions, Marco Montemayor, Tomoaki Morishita, Patrick Murphy, Daniel F. Nadeau, Erin Nicholls, Mats B. Nilsson, Anastasia Niyazova, Jenni Nordén, Koffi Dodji Noumonvi, Hannu Nykanen, Walter Oechel, Anne Ojala, Tomohiro Okadera, Sujan Pal, Alexey V. Panov, Tim Papakyriakou, Dario Papale, Sang-Jong Park, Frans-Jan W. Parmentier, Gilberto Pastorello, Mike Peacock, Matthias Peichl, Roman Petrov, Kyra St. Pierre, Norbert Pirk, Jessica Plein, Vilmantas Preskienis, Anatoly Prokushkin, Jukka Pumpanen, Hilary A. Rains, Niklas Rakos, Aleski Räsänen, Helena Rautakoski, Riika Rinnan, Janne Rinne, Adrian Rocha, Nigel Roulet, Alexandre Roy, Anna Rutgersson, Aleksandr F. Sabrekov, Torsten Sachs, Erik Sahlée, Alejandro Salazar, Henrique Oliveira Sawakuchi, Christopher Schulze, Roger Seco, Armando Sepulveda-Jauregui, Svetlana Serikova, Abbey Serrone, Hanna M. Silvennoinen, Sofie Sjogersten, June Skeeter, Jo Snöälv, Sebastian Sobek, Oliver Sonnentag, Emily H. Stanley, Maria Strack, Lena Strom, Patrick Sullivan, Ryan Sullivan, Anna Sytiuk, Torbern Tagesson, Pierre Taillardat, Julie Talbot, Suzanne E. Tank, Mario Tenuta, Irina Terenteva, Frederic Thalasso, Antoine Thiboult, Halldor Thorgeirsson, Fenix Garcia Tigreros, Margaret Torn, Amy Townsend-Small, Claire Treat, Alain Tremblay, Carlo Trotta, Eeva-Stiina Tuittila, Merritt Turetsky, Masahito Ueyama, Muhammad Umair, Aki Vähä, Lona van Delden, Maarten van Hardenbroek, Andrej Varlagin, Ruth K. Varner, Elena Veretennikova, Timo Vesala, Tarmo Virtanen, Carolina Voigt, Jorien E. Vonk, Robert Wagner, Katey Walter Anthony, Qinxue Wang, Masataka Watanabe, Hailey Webb, Jeffrey M. Welker, Andreas Westergaard-Nielsen, Sebastian Westermann, Jeffrey R. White, Christian Wille, Scott N. Williamson, Scott Zolkos, Donatella Zona, and Susan M. Natali
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2025-585, https://doi.org/10.5194/essd-2025-585, 2025
Revised manuscript under review for ESSD
Short summary
Short summary
This dataset includes monthly measurements of carbon dioxide and methane exchange between land, water, and the atmosphere from over 1,000 sites in Arctic and boreal regions. It combines measurements from a variety of ecosystems, including wetlands, forests, tundra, lakes, and rivers, gathered by over 260 researchers from 1984–2024. This dataset can be used to improve and reduce uncertainty in carbon budgets in order to strengthen our understanding of climate feedbacks in a warming world.
Agnese Petteni, Elise Fourré, Elsa Gautier, Azzurra Spagnesi, Roxanne Jacob, Pete D. Akers, Daniele Zannoni, Jacopo Gabrieli, Olivier Jossoud, Frédéric Prié, Amaëlle Landais, Titouan Tcheng, Barbara Stenni, Joel Savarino, Patrick Ginot, and Mathieu Casado
Atmos. Meas. Tech., 18, 5435–5455, https://doi.org/10.5194/amt-18-5435-2025, https://doi.org/10.5194/amt-18-5435-2025, 2025
Short summary
Short summary
Our research compares three systems of continuous flow analysis coupled with cavity ring-down spectrometry (CFA-CRD) from Venice, Paris, and Grenoble laboratories for measuring water isotopes in ice cores, crucial for reconstructing past climate. We quantify each system’s mixing and measurement noise effects, which impact the achievable resolution of isotope continuous records. Our findings reveal specific configurations and procedures to enhance measurement accuracy, providing a framework to optimise water isotope analysis.
Marco Paglione, Yufang Hao, Stefano Decesari, Mara Russo, Karam Mansour, Mauro Mazzola, Diego Fellin, Andrea Mazzanti, Emilio Tagliavini, Manousos Ioannis Manousakas, Evangelia Diapouli, Elena Barbaro, Matteo Feltracco, Kaspar R. Daellenbach, and Matteo Rinaldi
Atmos. Chem. Phys., 25, 12853–12874, https://doi.org/10.5194/acp-25-12853-2025, https://doi.org/10.5194/acp-25-12853-2025, 2025
Short summary
Short summary
A year-long set of submicron aerosol samples (PM1) from Ny-Ålesund, Svalbard, was analyzed by proton nuclear magnetic resonance spectroscopy (H-NMR) and high-resolution time-of-flight aerosol mass spectrometry (HR-TOF-AMS) to characterize the organic fraction. Positive matrix factorization identified five organic aerosol sources. Winter–spring was dominated by Eurasian pollution and summer by marine biogenic aerosols, with occasional wildfire events.
Luca Carturan, Alexander C. Ihle, Federico Cazorzi, Tiziana Lazzarina Zendrini, Fabrizio De Blasi, Giancarlo Dalla Fontana, Giuliano Dreossi, Daniela Festi, Bryan Mark, Klaus Dieter Oeggl, Roberto Seppi, Barbara Stenni, and Paolo Gabrielli
The Cryosphere, 19, 3443–3458, https://doi.org/10.5194/tc-19-3443-2025, https://doi.org/10.5194/tc-19-3443-2025, 2025
Short summary
Short summary
Paleoclimatic glacial archives in low-latitude mountains are increasingly affected by melt, causing heavy percolation and removing snow and firn accumulated across months, seasons, or even years. Here we present a proxy system model that explicitly accounts for melt in ice and firn cores. Compared to traditional annual layer counting, the model significantly improved the interpretation and annual dating of the Mt Ortles firn core, in the Italian Alps, which includes the very warm summer of 2003.
Agnese Petteni, Mathieu Casado, Christophe Leroy-Dos Santos, Amaelle Landais, Niels Dutrievoz, Cécile Agosta, Pete D. Akers, Joel Savarino, Andrea Spolaor, Massimo Frezzotti, and Barbara Stenni
EGUsphere, https://doi.org/10.5194/egusphere-2025-3188, https://doi.org/10.5194/egusphere-2025-3188, 2025
Short summary
Short summary
We investigated the isotopic composition of surface snow in a previously unexplored region of East Antarctica to understand how differences in air mass origin influence its variability. By comparing observations with model data, we validated the model and quantified the impact of post-depositional processes at the snow–atmosphere interface. Our results offer valuable insights for reconstructing past temperatures from ice cores.
Adrien Ooms, Mathieu Casado, Ghislain Picard, Laurent Arnaud, Maria Hörhold, Andrea Spolaor, Rita Traversi, Joel Savarino, Patrick Ginot, Pete Akers, Birthe Twarloh, and Valérie Masson-Delmotte
EGUsphere, https://doi.org/10.5194/egusphere-2025-3259, https://doi.org/10.5194/egusphere-2025-3259, 2025
Short summary
Short summary
This work presents a new approach to the estimation of accumulation rates at Concordia Station, East-Antarctica, for the last 20 years, from a new data set of chemical tracers and snow micro-scale properties measured in a snow trench. Multi-annual and meter to decameter scale variability of accumulation rates are compared again in-situ measurements of surface laser scanner and stake farm, with very good agreement. This further constrains SMB estimation for Antarctica at high temporal resolution.
Manuel Bensi, Giuseppe Civitarese, Diego Borme, Carmela Caroppo, Gabriella Caruso, Federica Cerino, Franco Decembrini, Alessandra de Olazabal, Tommaso Diociaiuti, Michele Giani, Vedrana Kovacevic, Martina Kralj, Angelina Lo Giudice, Giovanna Maimone, Marina Monti, Maria Papale, Luisa Patrolecco, Elisa Putelli, Alessandro Ciro Rappazzo, Federica Relitti, Carmen Rizzo, Francesca Spataro, Valentina Tirelli, Clara Turetta, and Maurizio Azzaro
Earth Syst. Sci. Data, 17, 3701–3719, https://doi.org/10.5194/essd-17-3701-2025, https://doi.org/10.5194/essd-17-3701-2025, 2025
Short summary
Short summary
In September 2021, the Italian Arctic Research Programme funded a multidisciplinary study along 75° N in the Greenland Sea as part of the CASSANDRA project and the Synoptic Arctic Survey (SAS) programme. This study emphasises the spatial variability of water properties, nutrient distribution, and biological communities determined by oceanographic dynamics in a region influenced by sea ice melting, Atlantic Water inflow, and climatic teleconnections during a record low summer sea ice extent.
Serena Lagorio, Barbara Delmonte, Dieter Tetzner, Elisa Malinverno, Giovanni Baccolo, Barbara Stenni, Massimo Frezzotti, Valter Maggi, and Nancy Bertler
Clim. Past, 21, 1323–1341, https://doi.org/10.5194/cp-21-1323-2025, https://doi.org/10.5194/cp-21-1323-2025, 2025
Short summary
Short summary
Aeolian diatoms and dust in the Antarctic Roosevelt Island Climate Evolution project (RICE) ice core allow the reconstruction of atmospheric circulation and climate variability in the Eastern Ross Sea over the past 2 millennia. Since about 1470 CE and during the Little Ice Age, the site experienced a rapid atmospheric circulation reorganization related to the development of the Roosevelt Island polynya, the eastward protrusion of the Ross Sea polynya that significantly impacted the regional climate dynamics of the Ross Sea area.
Yalalt Nyamgerel, Yeongcheol Han, Soon Do Hur, Hyemi Kim, Songyi Kim, Jangil Moon, Barbara Stenni, and Jeonghoon Lee
EGUsphere, https://doi.org/10.5194/egusphere-2025-2408, https://doi.org/10.5194/egusphere-2025-2408, 2025
Short summary
Short summary
This research explores climate patterns recorded in Antarctic ice over the past two centuries. By analyzing ice layers, we identified connections between Antarctica's climate and tropical ocean conditions. Results show changing influences over time and highlight the Indian Ocean's key role in Antarctic snowfall. This improves understanding of how polar and tropical climates interact, crucial for future climate predictions.
Anisbel Leon-Marcos, Moritz Zeising, Manuela van Pinxteren, Sebastian Zeppenfeld, Astrid Bracher, Elena Barbaro, Anja Engel, Matteo Feltracco, Ina Tegen, and Bernd Heinold
Geosci. Model Dev., 18, 4183–4213, https://doi.org/10.5194/gmd-18-4183-2025, https://doi.org/10.5194/gmd-18-4183-2025, 2025
Short summary
Short summary
This study represents the primary marine organic aerosol (PMOA) emissions, focusing on their sea–atmosphere transfer. Using the FESOM2.1–REcoM3 model, concentrations of key organic biomolecules were estimated and integrated into the ECHAM6.3–HAM2.3 aerosol–climate model. Results highlight the influence of marine biological activity and surface winds on PMOA emissions, with reasonably good agreement with observations improving aerosol representation in the southern oceans.
Paolo Gabrielli, Theo M. Jenk, Michele Bertó, Giuliano Dreossi, Daniela Festi, Werner Kofler, Mai Winstrup, Klaus Oeggl, Margit Schwikowski, Barbara Stenni, and Carlo Barbante
EGUsphere, https://doi.org/10.5194/egusphere-2025-2174, https://doi.org/10.5194/egusphere-2025-2174, 2025
Short summary
Short summary
A low latitude-high altitude Alpine ice core record was obtained in 2011 from the glacier Alto dell’Ortles (Eastern Alps, Italy) and provided evidence of one of the oldest Alpine ice core records spanning the last ~7000 years, back to the last Northern Hemisphere Climatic Optimum. Here we provide a new Alto dell’Ortles chronology of improved accuracy that will allow to constrain Holocene climatic and environmental histories emerging from this high-altitude glacial archive of Central Europe.
Andrea Securo, Costanza Del Gobbo, Giovanni Baccolo, Carlo Barbante, Michele Citterio, Fabrizio De Blasi, Marco Marcer, Mauro Valt, and Renato R. Colucci
The Cryosphere, 19, 1335–1352, https://doi.org/10.5194/tc-19-1335-2025, https://doi.org/10.5194/tc-19-1335-2025, 2025
Short summary
Short summary
We have reconstructed the multi-decadal (1980s–2023) ice mass changes for all the current mountain glaciers in the Dolomites. We used historical aerial photographs, drone surveys, and lidar to fill the glaciological data gap for the region. We observed an alarming decline in both glacier area and volume, with some of the glaciers showing smaller losses due to local topography and debris cover feedback. We strongly recommend more specific monitoring of these glaciers.
Thomas James Barnes, Thomas Vikhamar Schuler, Karianne Staalesen Lilleøren, and Louise Steffensen Schmidt
EGUsphere, https://doi.org/10.5194/egusphere-2025-108, https://doi.org/10.5194/egusphere-2025-108, 2025
Preprint archived
Short summary
Short summary
Ribbed moraines are a common, but poorly understood landform within formerly glaciated regions. There are many competing theories for their formation. As such, this paper addresses some of these theories by taking modelled ice conditions and physical characteristics of the landscapes in which they form and, then comparing them to the location of ribbed moraines. Using this we can identify conditions where ribbed moraines are more often present, and therefore we identify the most likely theories.
Brice Barret, Patrice Medina, Natalie Brett, Roman Pohorsky, Kathy S. Law, Slimane Bekki, Gilberto J. Fochesatto, Julia Schmale, Steve R. Arnold, Andrea Baccarini, Maurizio Busetto, Meeta Cesler-Maloney, Barbara D'Anna, Stefano Decesari, Jingqiu Mao, Gianluca Pappaccogli, Joel Savarino, Federico Scoto, and William R. Simpson
Atmos. Meas. Tech., 18, 1163–1184, https://doi.org/10.5194/amt-18-1163-2025, https://doi.org/10.5194/amt-18-1163-2025, 2025
Short summary
Short summary
The Fairbanks area experiences severe pollution episodes in winter because of enhanced emissions of pollutants trapped near the surface by strong temperature inversions. Low-cost sensors were deployed on board a car and a tethered balloon to measure the concentrations of gaseous pollutants (CO, O3, and NOx) in Fairbanks during winter 2022. Data calibration with reference measurements and machine learning methods enabled us to document pollution at the surface and power plant plumes aloft.
Thomas Lauwers, Elise Fourré, Olivier Jossoud, Daniele Romanini, Frédéric Prié, Giordano Nitti, Mathieu Casado, Kévin Jaulin, Markus Miltner, Morgane Farradèche, Valérie Masson-Delmotte, and Amaëlle Landais
Atmos. Meas. Tech., 18, 1135–1147, https://doi.org/10.5194/amt-18-1135-2025, https://doi.org/10.5194/amt-18-1135-2025, 2025
Short summary
Short summary
Water vapour isotopes are important tools to better understand processes governing the atmospheric hydrological cycle. In polar regions, their measurement helps to improve the interpretation of water isotopic records in ice cores. However, in situ water vapour isotopic monitoring is an important challenge, especially in dry places of East Antarctica. We present here an alternative laser spectroscopy technique adapted for such measurements, with a limit of detection down to 10 ppm humidity.
Natalie Brett, Kathy S. Law, Steve R. Arnold, Javier G. Fochesatto, Jean-Christophe Raut, Tatsuo Onishi, Robert Gilliam, Kathleen Fahey, Deanna Huff, George Pouliot, Brice Barret, Elsa Dieudonné, Roman Pohorsky, Julia Schmale, Andrea Baccarini, Slimane Bekki, Gianluca Pappaccogli, Federico Scoto, Stefano Decesari, Antonio Donateo, Meeta Cesler-Maloney, William Simpson, Patrice Medina, Barbara D'Anna, Brice Temime-Roussel, Joel Savarino, Sarah Albertin, Jingqiu Mao, Becky Alexander, Allison Moon, Peter F. DeCarlo, Vanessa Selimovic, Robert Yokelson, and Ellis S. Robinson
Atmos. Chem. Phys., 25, 1063–1104, https://doi.org/10.5194/acp-25-1063-2025, https://doi.org/10.5194/acp-25-1063-2025, 2025
Short summary
Short summary
Processes influencing dispersion of local anthropogenic pollution in Arctic wintertime are investigated with Lagrangian dispersion modelling. Simulated power plant plume rise that considers temperature inversion layers improves results compared to observations (interior Alaska). Modelled surface concentrations are improved by representation of vertical mixing and emission estimates. Large increases in diesel vehicle emissions at temperatures reaching −35°C are required to reproduce observed NOx.
Johanna Schäfer, Anja Beschnitt, François Burgay, Thomas Singer, Margit Schwikowski, and Thorsten Hoffmann
Atmos. Meas. Tech., 18, 421–430, https://doi.org/10.5194/amt-18-421-2025, https://doi.org/10.5194/amt-18-421-2025, 2025
Short summary
Short summary
Glaciers preserve organic compounds from atmospheric aerosols, which can serve as markers for emission sources. Most studies overlook the enantiomers of chiral compounds. We developed a two-dimensional liquid chromatography method to determine the chiral ratios of the monoterpene oxidation products cis-pinic acid and cis-pinonic acid in ice-core samples. Applied to samples from the Belukha Glacier (1870–1970 CE), the method revealed fluctuating chiral ratios for the analytes.
Inès Ollivier, Hans Christian Steen-Larsen, Barbara Stenni, Laurent Arnaud, Mathieu Casado, Alexandre Cauquoin, Giuliano Dreossi, Christophe Genthon, Bénédicte Minster, Ghislain Picard, Martin Werner, and Amaëlle Landais
The Cryosphere, 19, 173–200, https://doi.org/10.5194/tc-19-173-2025, https://doi.org/10.5194/tc-19-173-2025, 2025
Short summary
Short summary
The role of post-depositional processes taking place at the ice sheet's surface on the water stable isotope signal measured in polar ice cores is not fully understood. Using field observations and modelling results, we show that the original precipitation isotopic signal at Dome C, East Antarctica, is modified by post-depositional processes and provide the first quantitative estimation of their mean impact on the isotopic signal observed in the snow.
Luca Teruzzi, Andrea Spolaor, David Cappelletti, Claudio Artoni, and Marco A. C. Potenza
EGUsphere, https://doi.org/10.5194/egusphere-2024-2057, https://doi.org/10.5194/egusphere-2024-2057, 2024
Preprint archived
Short summary
Short summary
We present a novel probe to measure visible light penetration into the uppermost snow layers with high spatial resolution. The probe is designed to be lightweight and robust to be exploited in extreme environments, extrapolating to the UV region. Such experimental approach will allow to fill the gap in the current understanding of sunlight propagation through the snowpack, often based on numerical approaches, improving the understanding of those processes occurring in snow even in the UV region.
Yi Zhou, Xianwei Wang, Ruibo Lei, Arttu Jutila, Donald K. Perovich, Luisa von Albedyll, Dmitry V. Divine, Yu Zhang, and Christian Haas
EGUsphere, https://doi.org/10.5194/egusphere-2024-2821, https://doi.org/10.5194/egusphere-2024-2821, 2024
Preprint archived
Short summary
Short summary
This study examines how the bulk density of Arctic sea ice varies seasonally, a factor often overlooked in satellite measurements of sea ice thickness. From October to April, we found significant seasonal variations in sea ice bulk density at different spatial scales using direct observations as well as airborne and satellite data. New models were then developed to indirectly predict sea ice bulk density. This advance can improve our ability to monitor changes in Arctic sea ice.
Giuliano Dreossi, Mauro Masiol, Barbara Stenni, Daniele Zannoni, Claudio Scarchilli, Virginia Ciardini, Mathieu Casado, Amaëlle Landais, Martin Werner, Alexandre Cauquoin, Giampietro Casasanta, Massimo Del Guasta, Vittoria Posocco, and Carlo Barbante
The Cryosphere, 18, 3911–3931, https://doi.org/10.5194/tc-18-3911-2024, https://doi.org/10.5194/tc-18-3911-2024, 2024
Short summary
Short summary
Oxygen and hydrogen stable isotopes have been extensively used to reconstruct past temperatures, with precipitation representing the input signal of the isotopic records in ice cores. We present a 10-year record of stable isotopes in daily precipitation at Concordia Station: this is the longest record for inland Antarctica and represents a benchmark for quantifying post-depositional processes and improving the paleoclimate interpretation of ice cores.
Romilly Harris Stuart, Amaëlle Landais, Laurent Arnaud, Christo Buizert, Emilie Capron, Marie Dumont, Quentin Libois, Robert Mulvaney, Anaïs Orsi, Ghislain Picard, Frédéric Prié, Jeffrey Severinghaus, Barbara Stenni, and Patricia Martinerie
The Cryosphere, 18, 3741–3763, https://doi.org/10.5194/tc-18-3741-2024, https://doi.org/10.5194/tc-18-3741-2024, 2024
Short summary
Short summary
Ice core δO2/N2 records are useful dating tools due to their local insolation pacing. A precise understanding of the physical mechanism driving this relationship, however, remain ambiguous. By compiling data from 15 polar sites, we find a strong dependence of mean δO2/N2 on accumulation rate and temperature in addition to the well-documented insolation dependence. Snowpack modelling is used to investigate which physical properties drive the mechanistic dependence on these local parameters.
Mathieu Casado, Amaelle Landais, Tim Stoltmann, Justin Chaillot, Mathieu Daëron, Fréderic Prié, Baptiste Bordet, and Samir Kassi
Atmos. Meas. Tech., 17, 4599–4612, https://doi.org/10.5194/amt-17-4599-2024, https://doi.org/10.5194/amt-17-4599-2024, 2024
Short summary
Short summary
Measuring water isotopic composition in Antarctica is difficult because of the extremely cold temperature in winter. Here, we designed a new infrared spectrometer able to measure the vapour isotopic composition during more than 95 % of the year in the coldest locations of Antarctica, whereas current commercial instruments are only able to measure during the warm summer months in the interior.
Coline Bouchayer, Ugo Nanni, Pierre-Marie Lefeuvre, John Hult, Louise Steffensen Schmidt, Jack Kohler, François Renard, and Thomas V. Schuler
The Cryosphere, 18, 2939–2968, https://doi.org/10.5194/tc-18-2939-2024, https://doi.org/10.5194/tc-18-2939-2024, 2024
Short summary
Short summary
We explore the interplay between surface runoff and subglacial conditions. We focus on Kongsvegen glacier in Svalbard. We drilled 350 m down to the glacier base to measure water pressure, till strength, seismic noise, and glacier surface velocity. In the low-melt season, the drainage system adapted gradually, while the high-melt season led to a transient response, exceeding drainage capacity and enhancing sliding. Our findings contribute to discussions on subglacial hydro-mechanical processes.
Thomas J. Barnes, Thomas V. Schuler, Simon Filhol, and Karianne S. Lilleøren
Earth Surf. Dynam., 12, 801–818, https://doi.org/10.5194/esurf-12-801-2024, https://doi.org/10.5194/esurf-12-801-2024, 2024
Short summary
Short summary
In this paper, we use machine learning to automatically outline landforms based on their characteristics. We test several methods to identify the most accurate and then proceed to develop the most accurate to improve its accuracy further. We manage to outline landforms with 65 %–75 % accuracy, at a resolution of 10 m, thanks to high-quality/high-resolution elevation data. We find that it is possible to run this method at a country scale to quickly produce landform inventories for future studies.
Tessa R. Vance, Nerilie J. Abram, Alison S. Criscitiello, Camilla K. Crockart, Aylin DeCampo, Vincent Favier, Vasileios Gkinis, Margaret Harlan, Sarah L. Jackson, Helle A. Kjær, Chelsea A. Long, Meredith K. Nation, Christopher T. Plummer, Delia Segato, Andrea Spolaor, and Paul T. Vallelonga
Clim. Past, 20, 969–990, https://doi.org/10.5194/cp-20-969-2024, https://doi.org/10.5194/cp-20-969-2024, 2024
Short summary
Short summary
This study presents the chronologies from the new Mount Brown South ice cores from East Antarctica, which were developed by counting annual layers in the ice core data and aligning these to volcanic sulfate signatures. The uncertainty in the dating is quantified, and we discuss initial results from seasonal cycle analysis and mean annual concentrations. The chronologies will underpin the development of new proxy records for East Antarctica spanning the past millennium.
Amaelle Landais, Cécile Agosta, Françoise Vimeux, Olivier Magand, Cyrielle Solis, Alexandre Cauquoin, Niels Dutrievoz, Camille Risi, Christophe Leroy-Dos Santos, Elise Fourré, Olivier Cattani, Olivier Jossoud, Bénédicte Minster, Frédéric Prié, Mathieu Casado, Aurélien Dommergue, Yann Bertrand, and Martin Werner
Atmos. Chem. Phys., 24, 4611–4634, https://doi.org/10.5194/acp-24-4611-2024, https://doi.org/10.5194/acp-24-4611-2024, 2024
Short summary
Short summary
We have monitored water vapor isotopes since January 2020 on Amsterdam Island in the Indian Ocean. We show 11 periods associated with abrupt negative excursions of water vapor δ18Ο. Six of these events show a decrease in gaseous elemental mercury, suggesting subsidence of air from a higher altitude. Accurately representing the water isotopic signal during these cold fronts is a real challenge for the atmospheric components of Earth system models equipped with water isotopes.
Małgorzata Błaszczyk, Bartłomiej Luks, Michał Pętlicki, Dariusz Puczko, Dariusz Ignatiuk, Michał Laska, Jacek Jania, and Piotr Głowacki
Earth Syst. Sci. Data, 16, 1847–1860, https://doi.org/10.5194/essd-16-1847-2024, https://doi.org/10.5194/essd-16-1847-2024, 2024
Short summary
Short summary
Understanding the glacier response to accelerated climate warming in the Arctic requires data obtained in the field. Here, we present a dataset of velocity measurements of Hansbreen, a tidewater glacier in Svalbard. The glacier's velocity was measured with GPS at 16 stakes mounted on the glacier's surface. The measurements were conducted from about 1 week to about 1 month. The dataset offers unique material for validating numerical models of glacier dynamics and satellite-derived products.
Fredrik Lagergren, Robert G. Björk, Camilla Andersson, Danijel Belušić, Mats P. Björkman, Erik Kjellström, Petter Lind, David Lindstedt, Tinja Olenius, Håkan Pleijel, Gunhild Rosqvist, and Paul A. Miller
Biogeosciences, 21, 1093–1116, https://doi.org/10.5194/bg-21-1093-2024, https://doi.org/10.5194/bg-21-1093-2024, 2024
Short summary
Short summary
The Fennoscandian boreal and mountain regions harbour a wide range of ecosystems sensitive to climate change. A new, highly resolved high-emission climate scenario enabled modelling of the vegetation development in this region at high resolution for the 21st century. The results show dramatic south to north and low- to high-altitude shifts of vegetation zones, especially for the open tundra environments, which will have large implications for nature conservation, reindeer husbandry and forestry.
Elena Barbaro, Matteo Feltracco, Fabrizio De Blasi, Clara Turetta, Marta Radaelli, Warren Cairns, Giulio Cozzi, Giovanna Mazzi, Marco Casula, Jacopo Gabrieli, Carlo Barbante, and Andrea Gambaro
Atmos. Chem. Phys., 24, 2821–2835, https://doi.org/10.5194/acp-24-2821-2024, https://doi.org/10.5194/acp-24-2821-2024, 2024
Short summary
Short summary
The study analyzed a year of atmospheric aerosol composition at Col Margherita in the Italian Alps. Over 100 chemical markers were identified, including major ions, organic compounds, and trace elements. It revealed sources of aerosol, highlighted impacts of Saharan dust events, and showed anthropogenic pollution's influence despite the site's remoteness. Enrichment factors emphasized non-natural sources of trace elements. Source apportionment identified four key factors affecting the area.
Emma Nilsson, Carmen Paulina Vega, Dmitry Divine, Anja Eichler, Tonu Martma, Robert Mulvaney, Elisabeth Schlosser, Margit Schwikowski, and Elisabeth Isaksson
EGUsphere, https://doi.org/10.5194/egusphere-2023-3156, https://doi.org/10.5194/egusphere-2023-3156, 2024
Preprint withdrawn
Short summary
Short summary
To project future climate change it is necessary to understand paleoclimate including past sea ice conditions. We have investigated methane sulphonic acid (MSA) in Antarctic firn and ice cores to reconstruct sea ice extent (SIE) and found that the MSA – SIE as well as the MSA – phytoplankton biomass relationship varies across the different firn and ice cores. These inconsistencies in correlations across records suggest that MSA in Fimbul Ice Shelf cores does not reliably indicate regional SIE.
Christophe Leroy-Dos Santos, Elise Fourré, Cécile Agosta, Mathieu Casado, Alexandre Cauquoin, Martin Werner, Benedicte Minster, Frédéric Prié, Olivier Jossoud, Leila Petit, and Amaëlle Landais
The Cryosphere, 17, 5241–5254, https://doi.org/10.5194/tc-17-5241-2023, https://doi.org/10.5194/tc-17-5241-2023, 2023
Short summary
Short summary
In the face of global warming, understanding the changing water cycle and temperatures in polar regions is crucial. These factors directly impact the balance of ice sheets in the Arctic and Antarctic. By studying the composition of water vapor, we gain insights into climate variations. Our 2-year study at Dumont d’Urville station, Adélie Land, offers valuable data to refine models. Additionally, we demonstrate how modeling aids in interpreting signals from ice core samples in the region.
Tobias Erhardt, Camilla Marie Jensen, Florian Adolphi, Helle Astrid Kjær, Remi Dallmayr, Birthe Twarloh, Melanie Behrens, Motohiro Hirabayashi, Kaori Fukuda, Jun Ogata, François Burgay, Federico Scoto, Ilaria Crotti, Azzurra Spagnesi, Niccoló Maffezzoli, Delia Segato, Chiara Paleari, Florian Mekhaldi, Raimund Muscheler, Sophie Darfeuil, and Hubertus Fischer
Earth Syst. Sci. Data, 15, 5079–5091, https://doi.org/10.5194/essd-15-5079-2023, https://doi.org/10.5194/essd-15-5079-2023, 2023
Short summary
Short summary
The presented paper provides a 3.8 kyr long dataset of aerosol concentrations from the East Greenland Ice coring Project (EGRIP) ice core. The data consists of 1 mm depth-resolution profiles of calcium, sodium, ammonium, nitrate, and electrolytic conductivity as well as decadal averages of these profiles. Alongside the data a detailed description of the measurement setup as well as a discussion of the uncertainties are given.
Cole G. Brachmann, Tage Vowles, Riikka Rinnan, Mats P. Björkman, Anna Ekberg, and Robert G. Björk
Biogeosciences, 20, 4069–4086, https://doi.org/10.5194/bg-20-4069-2023, https://doi.org/10.5194/bg-20-4069-2023, 2023
Short summary
Short summary
Herbivores change plant communities through grazing, altering the amount of CO2 and plant-specific chemicals (termed VOCs) emitted. We tested this effect by excluding herbivores and studying the CO2 and VOC emissions. Herbivores reduced CO2 emissions from a meadow community and altered VOC composition; however, community type had the strongest effect on the amount of CO2 and VOCs released. Herbivores can mediate greenhouse gas emissions, but the effect is marginal and community dependent.
Thomas Frank, Ward J. J. van Pelt, and Jack Kohler
The Cryosphere, 17, 4021–4045, https://doi.org/10.5194/tc-17-4021-2023, https://doi.org/10.5194/tc-17-4021-2023, 2023
Short summary
Short summary
Since the ice thickness of most glaciers worldwide is unknown, and since it is not feasible to visit every glacier and observe their thickness directly, inverse modelling techniques are needed that can calculate ice thickness from abundant surface observations. Here, we present a new method for doing that. Our methodology relies on modelling the rate of surface elevation change for a given glacier, compare this with observations of the same quantity and change the bed until the two are in line.
Azzurra Spagnesi, Pascal Bohleber, Elena Barbaro, Matteo Feltracco, Fabrizio De Blasi, Giuliano Dreossi, Martin Stocker-Waldhuber, Daniela Festi, Jacopo Gabrieli, Andrea Gambaro, Andrea Fischer, and Carlo Barbante
EGUsphere, https://doi.org/10.5194/egusphere-2023-1625, https://doi.org/10.5194/egusphere-2023-1625, 2023
Preprint archived
Short summary
Short summary
We present new data from a 10 m ice core drilled in 2019 and a 8.4 m parallel ice core drilled in 2021 at the summit of Weißseespitze glacier. In a new combination of proxies, we discuss profiles of stable water isotopes, major ion chemistry as well as a full profile of microcharcoal and levoglucosan. We find that the chemical and isotopic signals are preserved, despite the ongoing surface mass loss. This is not be to expected considering what has been found at other glaciers at similar locations.
Louise Steffensen Schmidt, Thomas Vikhamar Schuler, Erin Emily Thomas, and Sebastian Westermann
The Cryosphere, 17, 2941–2963, https://doi.org/10.5194/tc-17-2941-2023, https://doi.org/10.5194/tc-17-2941-2023, 2023
Short summary
Short summary
Here, we present high-resolution simulations of glacier mass balance (the gain and loss of ice over a year) and runoff on Svalbard from 1991–2022, one of the fastest warming regions in the Arctic. The simulations are created using the CryoGrid community model. We find a small overall loss of mass over the simulation period of −0.08 m yr−1 but with no statistically significant trend. The average runoff was found to be 41 Gt yr−1, with a significant increasing trend of 6.3 Gt per decade.
Alice C. Frémand, Peter Fretwell, Julien A. Bodart, Hamish D. Pritchard, Alan Aitken, Jonathan L. Bamber, Robin Bell, Cesidio Bianchi, Robert G. Bingham, Donald D. Blankenship, Gino Casassa, Ginny Catania, Knut Christianson, Howard Conway, Hugh F. J. Corr, Xiangbin Cui, Detlef Damaske, Volkmar Damm, Reinhard Drews, Graeme Eagles, Olaf Eisen, Hannes Eisermann, Fausto Ferraccioli, Elena Field, René Forsberg, Steven Franke, Shuji Fujita, Yonggyu Gim, Vikram Goel, Siva Prasad Gogineni, Jamin Greenbaum, Benjamin Hills, Richard C. A. Hindmarsh, Andrew O. Hoffman, Per Holmlund, Nicholas Holschuh, John W. Holt, Annika N. Horlings, Angelika Humbert, Robert W. Jacobel, Daniela Jansen, Adrian Jenkins, Wilfried Jokat, Tom Jordan, Edward King, Jack Kohler, William Krabill, Mette Kusk Gillespie, Kirsty Langley, Joohan Lee, German Leitchenkov, Carlton Leuschen, Bruce Luyendyk, Joseph MacGregor, Emma MacKie, Kenichi Matsuoka, Mathieu Morlighem, Jérémie Mouginot, Frank O. Nitsche, Yoshifumi Nogi, Ole A. Nost, John Paden, Frank Pattyn, Sergey V. Popov, Eric Rignot, David M. Rippin, Andrés Rivera, Jason Roberts, Neil Ross, Anotonia Ruppel, Dustin M. Schroeder, Martin J. Siegert, Andrew M. Smith, Daniel Steinhage, Michael Studinger, Bo Sun, Ignazio Tabacco, Kirsty Tinto, Stefano Urbini, David Vaughan, Brian C. Welch, Douglas S. Wilson, Duncan A. Young, and Achille Zirizzotti
Earth Syst. Sci. Data, 15, 2695–2710, https://doi.org/10.5194/essd-15-2695-2023, https://doi.org/10.5194/essd-15-2695-2023, 2023
Short summary
Short summary
This paper presents the release of over 60 years of ice thickness, bed elevation, and surface elevation data acquired over Antarctica by the international community. These data are a crucial component of the Antarctic Bedmap initiative which aims to produce a new map and datasets of Antarctic ice thickness and bed topography for the international glaciology and geophysical community.
Sebastian Westermann, Thomas Ingeman-Nielsen, Johanna Scheer, Kristoffer Aalstad, Juditha Aga, Nitin Chaudhary, Bernd Etzelmüller, Simon Filhol, Andreas Kääb, Cas Renette, Louise Steffensen Schmidt, Thomas Vikhamar Schuler, Robin B. Zweigel, Léo Martin, Sarah Morard, Matan Ben-Asher, Michael Angelopoulos, Julia Boike, Brian Groenke, Frederieke Miesner, Jan Nitzbon, Paul Overduin, Simone M. Stuenzi, and Moritz Langer
Geosci. Model Dev., 16, 2607–2647, https://doi.org/10.5194/gmd-16-2607-2023, https://doi.org/10.5194/gmd-16-2607-2023, 2023
Short summary
Short summary
The CryoGrid community model is a new tool for simulating ground temperatures and the water and ice balance in cold regions. It is a modular design, which makes it possible to test different schemes to simulate, for example, permafrost ground in an efficient way. The model contains tools to simulate frozen and unfrozen ground, snow, glaciers, and other massive ice bodies, as well as water bodies.
Simone Ventisette, Samuele Baldini, Claudio Artoni, Silvia Becagli, Laura Caiazzo, Barbara Delmonte, Massimo Frezzotti, Raffaello Nardin, Joel Savarino, Mirko Severi, Andrea Spolaor, Barbara Stenni, and Rita Traversi
EGUsphere, https://doi.org/10.5194/egusphere-2023-393, https://doi.org/10.5194/egusphere-2023-393, 2023
Preprint archived
Short summary
Short summary
The paper reports the spatial variability of concentration and fluxes of chemical impurities in superficial snow over unexplored area of the East Antarctic ice sheet. Pinatubo and Puyehue-Cordón Caulle volcanic eruptions in non-sea salt sulfate and dust snow pits record were used to achieve the accumulation rates. Deposition (wet, dry and uptake from snow surface) and post deposition processes are constrained. These knowledges are fundamental in Antarctic ice cores stratigraphies interpretation.
Niccolò Maffezzoli, Eliza Cook, Willem G. M. van der Bilt, Eivind N. Støren, Daniela Festi, Florian Muthreich, Alistair W. R. Seddon, François Burgay, Giovanni Baccolo, Amalie R. F. Mygind, Troels Petersen, Andrea Spolaor, Sebastiano Vascon, Marcello Pelillo, Patrizia Ferretti, Rafael S. dos Reis, Jefferson C. Simões, Yuval Ronen, Barbara Delmonte, Marco Viccaro, Jørgen Peder Steffensen, Dorthe Dahl-Jensen, Kerim H. Nisancioglu, and Carlo Barbante
The Cryosphere, 17, 539–565, https://doi.org/10.5194/tc-17-539-2023, https://doi.org/10.5194/tc-17-539-2023, 2023
Short summary
Short summary
Multiple lines of research in ice core science are limited by manually intensive and time-consuming optical microscopy investigations for the detection of insoluble particles, from pollen grains to volcanic shards. To help overcome these limitations and support researchers, we present a novel methodology for the identification and autonomous classification of ice core insoluble particles based on flow image microscopy and neural networks.
François Burgay, Rafael Pedro Fernández, Delia Segato, Clara Turetta, Christopher S. Blaszczak-Boxe, Rachael H. Rhodes, Claudio Scarchilli, Virginia Ciardini, Carlo Barbante, Alfonso Saiz-Lopez, and Andrea Spolaor
The Cryosphere, 17, 391–405, https://doi.org/10.5194/tc-17-391-2023, https://doi.org/10.5194/tc-17-391-2023, 2023
Short summary
Short summary
The paper presents the first ice-core record of bromine (Br) in the Antarctic plateau. By the observation of the ice core and the application of atmospheric chemical models, we investigate the behaviour of bromine after its deposition into the snowpack, with interest in the effect of UV radiation change connected to the formation of the ozone hole, the role of volcanic deposition, and the possible use of Br to reconstruct past sea ice changes from ice core collect in the inner Antarctic plateau.
Anirudha Mahagaonkar, Geir Moholdt, and Thomas V. Schuler
The Cryosphere Discuss., https://doi.org/10.5194/tc-2023-4, https://doi.org/10.5194/tc-2023-4, 2023
Revised manuscript not accepted
Short summary
Short summary
Surface meltwater lakes along the margins of the Antarctic Ice Sheet can be important for ice shelf dynamics and stability. We used optical satellite imagery to study seasonal evolution of meltwater lakes in Dronning Maud Land. We found large interannual variability in lake extents, but with consistent seasonal patterns. Although correlation with summer air temperature was strong locally, other climatic and environmental factors need to be considered to explain the large regional variability.
Mirko Pavoni, Jacopo Boaga, Alberto Carrera, Stefano Urbini, Fabrizio de Blasi, and Jacopo Gabrieli
The Cryosphere Discuss., https://doi.org/10.5194/tc-2022-190, https://doi.org/10.5194/tc-2022-190, 2022
Revised manuscript not accepted
Short summary
Short summary
The Ice Memory project aims to extract, analyze, and store ice cores from worldwide retreating glaciers. One of the selected sites is the last remaining ice body in the Apennines, the Calderone Glacier. To assess the most suitable drilling position, geophysical surveys were performed. Reliable ground penetrating radar measurements have been positively combined with a geophysical technique rarely applied in glacier environments, the Frequency Domain Electro-Magnetic prospection.
Antoine Grisart, Mathieu Casado, Vasileios Gkinis, Bo Vinther, Philippe Naveau, Mathieu Vrac, Thomas Laepple, Bénédicte Minster, Frederic Prié, Barbara Stenni, Elise Fourré, Hans Christian Steen-Larsen, Jean Jouzel, Martin Werner, Katy Pol, Valérie Masson-Delmotte, Maria Hoerhold, Trevor Popp, and Amaelle Landais
Clim. Past, 18, 2289–2301, https://doi.org/10.5194/cp-18-2289-2022, https://doi.org/10.5194/cp-18-2289-2022, 2022
Short summary
Short summary
This paper presents a compilation of high-resolution (11 cm) water isotopic records, including published and new measurements, for the last 800 000 years from the EPICA Dome C ice core, Antarctica. Using this new combined water isotopes (δ18O and δD) dataset, we study the variability and possible influence of diffusion at the multi-decadal to multi-centennial scale. We observe a stronger variability at the onset of the interglacial interval corresponding to a warm period.
Outi Meinander, Pavla Dagsson-Waldhauserova, Pavel Amosov, Elena Aseyeva, Cliff Atkins, Alexander Baklanov, Clarissa Baldo, Sarah L. Barr, Barbara Barzycka, Liane G. Benning, Bojan Cvetkovic, Polina Enchilik, Denis Frolov, Santiago Gassó, Konrad Kandler, Nikolay Kasimov, Jan Kavan, James King, Tatyana Koroleva, Viktoria Krupskaya, Markku Kulmala, Monika Kusiak, Hanna K. Lappalainen, Michał Laska, Jerome Lasne, Marek Lewandowski, Bartłomiej Luks, James B. McQuaid, Beatrice Moroni, Benjamin Murray, Ottmar Möhler, Adam Nawrot, Slobodan Nickovic, Norman T. O’Neill, Goran Pejanovic, Olga Popovicheva, Keyvan Ranjbar, Manolis Romanias, Olga Samonova, Alberto Sanchez-Marroquin, Kerstin Schepanski, Ivan Semenkov, Anna Sharapova, Elena Shevnina, Zongbo Shi, Mikhail Sofiev, Frédéric Thevenet, Throstur Thorsteinsson, Mikhail Timofeev, Nsikanabasi Silas Umo, Andreas Uppstu, Darya Urupina, György Varga, Tomasz Werner, Olafur Arnalds, and Ana Vukovic Vimic
Atmos. Chem. Phys., 22, 11889–11930, https://doi.org/10.5194/acp-22-11889-2022, https://doi.org/10.5194/acp-22-11889-2022, 2022
Short summary
Short summary
High-latitude dust (HLD) is a short-lived climate forcer, air pollutant, and nutrient source. Our results suggest a northern HLD belt at 50–58° N in Eurasia and 50–55° N in Canada and at >60° N in Eurasia and >58° N in Canada. Our addition to the previously identified global dust belt (GDB) provides crucially needed information on the extent of active HLD sources with both direct and indirect impacts on climate and environment in remote regions, which are often poorly understood and predicted.
Silvia Becagli, Elena Barbaro, Simone Bonamano, Laura Caiazzo, Alcide di Sarra, Matteo Feltracco, Paolo Grigioni, Jost Heintzenberg, Luigi Lazzara, Michel Legrand, Alice Madonia, Marco Marcelli, Chiara Melillo, Daniela Meloni, Caterina Nuccio, Giandomenico Pace, Ki-Tae Park, Suzanne Preunkert, Mirko Severi, Marco Vecchiato, Roberta Zangrando, and Rita Traversi
Atmos. Chem. Phys., 22, 9245–9263, https://doi.org/10.5194/acp-22-9245-2022, https://doi.org/10.5194/acp-22-9245-2022, 2022
Short summary
Short summary
Measurements of phytoplanktonic dimethylsulfide and its oxidation products in the Antarctic atmosphere allow us to understand the role of the oceanic (sea ice melting, Chl α and dimethylsulfoniopropionate) and atmospheric (wind direction and speed, humidity, solar radiation and transport processes) factors in the biogenic aerosol formation, concentration and characteristic ratio between components in an Antarctic coastal site facing the polynya of the Ross Sea.
Johannes Oerlemans, Jack Kohler, and Adrian Luckman
The Cryosphere, 16, 2115–2126, https://doi.org/10.5194/tc-16-2115-2022, https://doi.org/10.5194/tc-16-2115-2022, 2022
Short summary
Short summary
Tunabreen is a 26 km long tidewater glacier. It is the most frequently surging glacier in Svalbard, with four documented surges in the past 100 years. We have modelled this glacier to find out how it reacts to future climate change. Careful calibration was done against the observed length record for the past 100 years. For a 50 m increase in the equilibrium line altitude (ELA) the length of the glacier will be shortened by 10 km after about 100 years.
Paolo Gabrielli, Theo Manuel Jenk, Michele Bertó, Giuliano Dreossi, Daniela Festi, Werner Kofler, Mai Winstrup, Klaus Oeggl, Margit Schwikowski, Barbara Stenni, and Carlo Barbante
Clim. Past Discuss., https://doi.org/10.5194/cp-2022-20, https://doi.org/10.5194/cp-2022-20, 2022
Revised manuscript not accepted
Short summary
Short summary
We present a methodology that reduces the chronological uncertainty of an Alpine ice core record from the glacier Alto dell’Ortles, Italy. This chronology will allow the constraint of the Holocene climatic and environmental histories emerging from this archive of Central Europe. This method will allow to obtain accurate chronologies also from other ice cores from-low latitude/high-altitude glaciers that typically suffer from larger dating uncertainties compared with well dated polar records.
Chao Yue, Louise Steffensen Schmidt, Liyun Zhao, Michael Wolovick, and John C. Moore
The Cryosphere Discuss., https://doi.org/10.5194/tc-2021-318, https://doi.org/10.5194/tc-2021-318, 2021
Revised manuscript not accepted
Short summary
Short summary
We use the ice sheet model PISM to estimate Vatnajökull mass balance under solar geoengineering. We find that Stratospheric aerosol injection at the rate of 5 Tg yr−1 reduces ice cap mass loss by 4 percentage points relative to the RCP4.5 scenario. Dynamic mass loss is a significant component of mass balance, but insensitive to climate forcing.
Raffaello Nardin, Mirko Severi, Alessandra Amore, Silvia Becagli, Francois Burgay, Laura Caiazzo, Virginia Ciardini, Giuliano Dreossi, Massimo Frezzotti, Sang-Bum Hong, Ishaq Khan, Bianca Maria Narcisi, Marco Proposito, Claudio Scarchilli, Enricomaria Selmo, Andrea Spolaor, Barbara Stenni, and Rita Traversi
Clim. Past, 17, 2073–2089, https://doi.org/10.5194/cp-17-2073-2021, https://doi.org/10.5194/cp-17-2073-2021, 2021
Short summary
Short summary
The first step to exploit all the potential information buried in ice cores is to produce a reliable age scale. Based on chemical and isotopic records from the 197 m Antarctic GV7(B) ice core, accurate dating was achieved and showed that the archive spans roughly the last 830 years. The relatively high accumulation rate allowed us to use the non-sea-salt sulfate seasonal pattern to count annual layers. The accumulation rate reconstruction exhibited a slight increase since the 18th century.
Matteo Rinaldi, Naruki Hiranuma, Gianni Santachiara, Mauro Mazzola, Karam Mansour, Marco Paglione, Cheyanne A. Rodriguez, Rita Traversi, Silvia Becagli, David Cappelletti, and Franco Belosi
Atmos. Chem. Phys., 21, 14725–14748, https://doi.org/10.5194/acp-21-14725-2021, https://doi.org/10.5194/acp-21-14725-2021, 2021
Short summary
Short summary
This study aims to add to the still scant ice-nucleating particle (INP) observations in the Arctic environment, investigating INP concentrations and potential sources, during spring and summertime, at the ground-level site of GVB. The lack of a clear concentration seasonal trend, in contrast with previous works, shows an important interannual variability of Arctic INP sources, which may be both terrestrial and marine, outside the Arctic haze period.
Federico Dallo, Daniele Zannoni, Jacopo Gabrieli, Paolo Cristofanelli, Francescopiero Calzolari, Fabrizio de Blasi, Andrea Spolaor, Dario Battistel, Rachele Lodi, Warren Raymond Lee Cairns, Ann Mari Fjæraa, Paolo Bonasoni, and Carlo Barbante
Atmos. Meas. Tech., 14, 6005–6021, https://doi.org/10.5194/amt-14-6005-2021, https://doi.org/10.5194/amt-14-6005-2021, 2021
Short summary
Short summary
Our work showed how the adoption of low-cost technology could be useful in environmental research and monitoring. We focused our work on tropospheric ozone, but we also showed how to make a general purpose low-cost sensing system which may be adapted and optimised to be used in many other case studies. Given the importance of providing quality data, we put a lot of effort in the sensor's calibration, and we believe that our results show how to exploit the potential of the low-cost technology.
Michele Bertò, David Cappelletti, Elena Barbaro, Cristiano Varin, Jean-Charles Gallet, Krzysztof Markowicz, Anna Rozwadowska, Mauro Mazzola, Stefano Crocchianti, Luisa Poto, Paolo Laj, Carlo Barbante, and Andrea Spolaor
Atmos. Chem. Phys., 21, 12479–12493, https://doi.org/10.5194/acp-21-12479-2021, https://doi.org/10.5194/acp-21-12479-2021, 2021
Short summary
Short summary
We present the daily and seasonal variability in black carbon (BC) in surface snow inferred from two specific experiments based on the hourly and daily time resolution sampling during the Arctic spring in Svalbard. These unique data sets give us, for the first time, the opportunity to evaluate the associations between the observed surface snow BC mass concentration and a set of predictors corresponding to the considered meteorological and snow physico-chemical parameters.
Vojtěch Abraham, Sheila Hicks, Helena Svobodová-Svitavská, Elissaveta Bozilova, Sampson Panajiotidis, Mariana Filipova-Marinova, Christin Eldegard Jensen, Spassimir Tonkov, Irena Agnieszka Pidek, Joanna Święta-Musznicka, Marcelina Zimny, Eliso Kvavadze, Anna Filbrandt-Czaja, Martina Hättestrand, Nurgül Karlıoğlu Kılıç, Jana Kosenko, Maria Nosova, Elena Severova, Olga Volkova, Margrét Hallsdóttir, Laimdota Kalniņa, Agnieszka M. Noryśkiewicz, Bożena Noryśkiewicz, Heather Pardoe, Areti Christodoulou, Tiiu Koff, Sonia L. Fontana, Teija Alenius, Elisabeth Isaksson, Heikki Seppä, Siim Veski, Anna Pędziszewska, Martin Weiser, and Thomas Giesecke
Biogeosciences, 18, 4511–4534, https://doi.org/10.5194/bg-18-4511-2021, https://doi.org/10.5194/bg-18-4511-2021, 2021
Short summary
Short summary
We present a continental dataset of pollen accumulation rates (PARs) collected by pollen traps. This absolute measure of pollen rain (grains cm−2 yr−1) has a positive relationship to current vegetation and latitude. Trap and fossil PARs have similar values within one region, so it opens up possibilities for using fossil PARs to reconstruct past changes in plant biomass and primary productivity. The dataset is available in the Neotoma Paleoecology Database.
Pascal Bohleber, Marco Roman, Martin Šala, Barbara Delmonte, Barbara Stenni, and Carlo Barbante
The Cryosphere, 15, 3523–3538, https://doi.org/10.5194/tc-15-3523-2021, https://doi.org/10.5194/tc-15-3523-2021, 2021
Short summary
Short summary
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) offers micro-destructive, micrometer-scale impurity analysis of ice cores. For improved understanding of the LA-ICP-MS signals, novel 2D impurity imaging is applied to selected glacial and interglacial samples of Antarctic deep ice cores. This allows evaluating the 2D impurity distribution in relation to ice crystal features and assessing implications for investigating highly thinned climate proxy signals in deep polar ice.
Delia Segato, Maria Del Carmen Villoslada Hidalgo, Ross Edwards, Elena Barbaro, Paul Vallelonga, Helle Astrid Kjær, Marius Simonsen, Bo Vinther, Niccolò Maffezzoli, Roberta Zangrando, Clara Turetta, Dario Battistel, Orri Vésteinsson, Carlo Barbante, and Andrea Spolaor
Clim. Past, 17, 1533–1545, https://doi.org/10.5194/cp-17-1533-2021, https://doi.org/10.5194/cp-17-1533-2021, 2021
Short summary
Short summary
Human influence on fire regimes in the past is poorly understood, especially at high latitudes. We present 5 kyr of fire proxies levoglucosan, black carbon, and ammonium in the RECAP ice core in Greenland and reconstruct for the first time the fire regime in the high North Atlantic region, comprising coastal east Greenland and Iceland. Climate is the main driver of the fire regime, but at 1.1 kyr BP a contribution may be made by the deforestation resulting from Viking colonization of Iceland.
Anja Rösel, Sinead Louise Farrell, Vishnu Nandan, Jaqueline Richter-Menge, Gunnar Spreen, Dmitry V. Divine, Adam Steer, Jean-Charles Gallet, and Sebastian Gerland
The Cryosphere, 15, 2819–2833, https://doi.org/10.5194/tc-15-2819-2021, https://doi.org/10.5194/tc-15-2819-2021, 2021
Short summary
Short summary
Recent observations in the Arctic suggest a significant shift towards a snow–ice regime caused by deep snow on thin sea ice which may result in a flooding of the snowpack. These conditions cause the brine wicking and saturation of the basal snow layers which lead to a subsequent underestimation of snow depth from snow radar mesurements. As a consequence the calculated sea ice thickness will be biased towards higher values.
Chloé Scholzen, Thomas V. Schuler, and Adrien Gilbert
The Cryosphere, 15, 2719–2738, https://doi.org/10.5194/tc-15-2719-2021, https://doi.org/10.5194/tc-15-2719-2021, 2021
Short summary
Short summary
We use a two-dimensional model of water flow below the glaciers in Kongsfjord, Svalbard, to investigate how different processes of surface-to-bed meltwater transfer affect subglacial hydraulic conditions. The latter are important for the sliding motion of glaciers, which in some cases exhibit huge variations. Our findings indicate that the glaciers in our study area undergo substantial sliding because water is poorly evacuated from their base, with limited influence from the surface hydrology.
Juditha Undine Schmidt, Bernd Etzelmüller, Thomas Vikhamar Schuler, Florence Magnin, Julia Boike, Moritz Langer, and Sebastian Westermann
The Cryosphere, 15, 2491–2509, https://doi.org/10.5194/tc-15-2491-2021, https://doi.org/10.5194/tc-15-2491-2021, 2021
Short summary
Short summary
This study presents rock surface temperatures (RSTs) of steep high-Arctic rock walls on Svalbard from 2016 to 2020. The field data show that coastal cliffs are characterized by warmer RSTs than inland locations during winter seasons. By running model simulations, we analyze factors leading to that effect, calculate the surface energy balance and simulate different future scenarios. Both field data and model results can contribute to a further understanding of RST in high-Arctic rock walls.
Cited articles
Arienzo, M. M., Legrand, M., Preunkert, S., Stohl, A., Chellman, N., Eckhardt, S., Gleason, K. E., and McConnell, J. R.: Alpine Ice-Core Evidence of a Large Increase in Vanadium and Molybdenum Pollution in Western Europe During the 20th Century, J. Geophys. Res.-Atmos., 126, e2020JD033211, https://doi.org/10.1029/2020JD033211, 2021.
Avak, S. E., Trachsel, J. C., Edebeli, J., Brütsch, S., Bartels-Rausch, T., Schneebeli, M., Schwikowski, M., and Eichler, A.: Melt-Induced Fractionation of Major Ions and Trace Elements in an Alpine Snowpack, J. Geophys. Res.-Earth, 124, 1647–1657, https://doi.org/10.1029/2019JF005026, 2019.
Barbaro, E., Spolaor, A., Karroca, O., Park, K.-T., Martma, T., Isaksson, E., Kohler, J., Gallet, J. C., Bjorkman, M. P., Cappelletti, D., Spreen, G., Zangrando, R., Barbante, C., and Gambaro, A.: Free amino acids in the Arctic snow and ice core samples: Potential markers for paleoclimatic studies, Sci. Total Environ., 607–608, 454–462, https://doi.org/10.1016/j.scitotenv.2017.07.041, 2017.
Beaudon, E., Moore, J. C., Martma, T., Pohjola, V. A., van de Wal, R. S. W., Kohler, J., and Isaksson, E.: Lomonosovfonna and Holtedahlfonna ice cores reveal east–west disparities of the Spitsbergen environment since AD 1700, J. Glaciol., 59, 1069–1083, https://doi.org/10.3189/2013JoG12J203, 2013.
Bengtsson, L., Andrae, U., Aspelien, T., Batrak, Y., Calvo, J., de Rooy, W., Gleeson, E., Hansen-Sass, B., Homleid, M., Hortal, M., Ivarsson, K.-I., Lenderink, G., Niemelä, S., Nielsen, K. P., Onvlee, J., Rontu, L., Samuelsson, P., Muñoz, D. S., Subias, A., Tijm, S., Toll, V., Yang, X., and Køltzow, M. Ø.: The HARMONIE–AROME Model Configuration in the ALADIN–HIRLAM NWP System, Mon. Weather Rev., 145, 1919–1935, https://doi.org/10.1175/MWR-D-16-0417.1, 2017.
Boers, N.: Early-warning signals for Dansgaard-Oeschger events in a high-resolution ice core record, Nat. Commun., 9, 2556, https://doi.org/10.1038/s41467-018-04881-7, 2018.
Bohleber, P., Roman, M., Šala, M., Delmonte, B., Stenni, B., and Barbante, C.: Two-dimensional impurity imaging in deep Antarctic ice cores: snapshots of three climatic periods and implications for high-resolution signal interpretation, The Cryosphere, 15, 3523–3538, https://doi.org/10.5194/tc-15-3523-2021, 2021.
Bonne, J.-L., Steen-Larsen, H. C., Risi, C., Werner, M., Sodemann, H., Lacour, J.-L., Fettweis, X., Cesana, G., Delmotte, M., Cattani, O., Vallelonga, P., Kjær, H. A., Clerbaux, C., Sveinbjörnsdóttir, Á. E., and Masson-Delmotte, V.: The summer 2012 Greenland heat wave: In situ and remote sensing observations of water vapor isotopic composition during an atmospheric river event, J. Geophys. Res.-Atmos., 120, 2970–2989, https://doi.org/10.1002/2014JD022602, 2015.
Burgay, F., Barbaro, E., Cappelletti, D., Turetta, C., Gallet, J.-C., Isaksson, E., Stenni, B., Dreossi, G., Scoto, F., Barbante, C., and Spolaor, A.: First discrete iron(II) records from Dome C (Antarctica) and the Holtedahlfonna glacier (Svalbard), Chemosphere, 267, 129335, https://doi.org/10.1016/j.chemosphere.2020.129335, 2021.
Cisek, M., Makuch, P., and Petelski, T.: Comparison of meteorological conditions in Svalbard fjords: Hornsund and Kongsfjorden, Oceanologia, 59, 413–421, https://doi.org/10.1016/j.oceano.2017.06.004, 2017.
Dahe, Q., Mayewski, P. A., Wake, C. P., Shichang, K., Jiawen, R., Shugui, H., Tandong, Y., Qinzhao, Y., Zhefan, J., and Desheng, M.: Evidence for recent climate change from ice cores in the central Himalaya, Ann. Glaciol., 31, 153–158, https://doi.org/10.3189/172756400781819789, 2000.
Dahlke, S. and Maturilli, M.: Contribution of atmospheric advection to the amplified winter warming in the arctic north atlantic region, Adv. Meteorol., 2017, 4928620, https://doi.org/10.1155/2017/4928620, 2017.
Dahlke, S., Hughes, N. E., Wagner, P. M., Gerland, S., Wawrzyniak, T., Ivanov, B., and Maturilli, M.: The observed recent surface air temperature development across Svalbard and concurring footprints in local sea ice cover, Int. J. Climatol., 40, 5246–5265, https://doi.org/10.1002/joc.6517, 2020.
Divine, D., Isaksson, E., Martma, T., Meijer, H. A. J., Moore, J., Pohjola, V., van de Wal, R. S. W., and Godtliebsen, F.: Thousand years of winter surface air temperature variations in Svalbard and northern Norway reconstructed from ice-core data, Polar Res., 30, 7379, https://doi.org/10.3402/polar.v30i0.7379, 2011.
Førland, E. J., Isaksen, K., Lutz, J., Hanssen-Bauer, I., Schuler, T. V., Dobler, A., Gjelten, H. M., and Vikhamar-Schuler, D.: Measured and Modeled Historical Precipitation Trends for Svalbard, J. Hydrometeorol., 21, 1279–1296, https://doi.org/10.1175/JHM-D-19-0252.1, 2020.
Gabrielli, P., Barbante, C., Bertagna, G., Bertó, M., Binder, D., Carton, A., Carturan, L., Cazorzi, F., Cozzi, G., Dalla Fontana, G., Davis, M., De Blasi, F., Dinale, R., Dragà, G., Dreossi, G., Festi, D., Frezzotti, M., Gabrieli, J., Galos, S. P., Ginot, P., Heidenwolf, P., Jenk, T. M., Kehrwald, N., Kenny, D., Magand, O., Mair, V., Mikhalenko, V., Lin, P. N., Oeggl, K., Piffer, G., Rinaldi, M., Schotterer, U., Schwikowski, M., Seppi, R., Spolaor, A., Stenni, B., Tonidandel, D., Uglietti, C., Zagorodnov, V., Zanoner, T., and Zennaro, P.: Age of the Mt. Ortles ice cores, the Tyrolean Iceman and glaciation of the highest summit of South Tyrol since the Northern Hemisphere Climatic Optimum, The Cryosphere, 10, 2779–2797, https://doi.org/10.5194/tc-10-2779-2016, 2016.
Geyman, E. C., van Pelt, W., Maloof, A. C., Aas, H. F., and Kohler, J.: Historical glacier change on Svalbard predicts doubling of mass loss by 2100, Nature, 601, 374–379, https://doi.org/10.1038/s41586-021-04314-4, 2022.
Goto-Azuma, K., Kohshima, T., Kameda, S., Takahashi, O., Watanabe, Y. F., and Hagen, J. O.: An ice-core chemistry record from Snøfjellafonna, northwestern Spitsbergen, Ann. Glaciol., 21, 213–218, 1995.
Hersbach, H., Bell, B., Berrisford, P., Hirahara, S., Horányi, A., Muñoz-Sabater, J., Nicolas, J., Peubey, C., Radu, R., Schepers, D., Simmons, A., Soci, C., Abdalla, S., Abellan, X., Balsamo, G., Bechtold, P., Biavati, G., Bidlot, J., Bonavita, M., Chiara, G., Dahlgren, P., Dee, D., Diamantakis, M., Dragani, R., Flemming, J., Forbes, R., Fuentes, M., Geer, A., Haimberger, L., Healy, S., Hogan, R. J., Hólm, E., Janisková, M., Keeley, S., Laloyaux, P., Lopez, P., Lupu, C., Radnoti, G., Rosnay, P., Rozum, I., Vamborg, F., Villaume, S., and Thépaut, J.: The ERA5 global reanalysis, Q. J. Roy. Meteor. Soc., 146, 1999–2049, https://doi.org/10.1002/qj.3803, 2020.
Hoffmann, G., Ramirez, E., Taupin, J. D., Francou, B., Ribstein, P., Delmas, R., Dürr, H., Gallaire, R., Simões, J., Schotterer, U., Stievenard, M., and Werner, M.: Coherent isotope history of Andean ice cores over the last century, Geophys. Res. Lett., 30, 2002GL014870, https://doi.org/10.1029/2002GL014870, 2003.
Isaksen, K., Nordli, Ø., Førland, E. J., Łupikasza, E., Eastwood, S., and Niedźwiedź, T.: Recent warming on Spitsbergen – Influence of atmospheric circulation and sea ice cover, J. Geophys. Res.-Atmos., 121, 11913–11931, https://doi.org/10.1002/2016JD025606, 2016.
Isaksen, K., Nordli, Ø., Ivanov, B., Køltzow, M. A. Ø., Aaboe, S., Gjelten, H. M., Mezghani, A., Eastwood, S., Førland, E., Benestad, R. E., Hanssen-Bauer, I., Brækkan, R., Sviashchennikov, P., Demin, V., Revina, A., and Karandasheva, T.: Exceptional warming over the Barents area, Sci. Rep., 12, 9371, https://doi.org/10.1038/s41598-022-13568-5, 2022.
Isaksson, E., Hermanson, M., Hicks, S., Igarashi, M., Kamiyama, K., Moore, J., Motoyama, H., Muir, D., Pohjola, V., Vaikmäe, R., van de Wal, R. S. W., and Watanabe, O.: Ice cores from Svalbard – useful archives of past climate and pollution history, Phys. Chem. Earth A/B/C, 28, 1217–1228, https://doi.org/10.1016/j.pce.2003.08.053, 2003.
Isaksson, E., Kekonen, T., Moore, J., and Mulvaney, R.: The methanesulfonic acid (MSA) record in a Svalbard ice core, Ann. Glaciol., 42, 345–351, 2005.
Kohler, J.: Mass balance for glaciers near Ny-Ålesund, Norwegian Polar Institute [data set], https://doi.org/10.21334/npolar.2013.ad6c4c5a, 2013.
Lind, S., Ingvaldsen, R. B., and Furevik, T.: Arctic warming hotspot in the northern Barents Sea linked to declining sea-ice import, Nat. Clim. Change, 8, 634–639, https://doi.org/10.1038/s41558-018-0205-y, 2018.
Matoba, S., Narita, H., Motoyama, H., Kamiyama, K., and Watanabe, O.: Ice core chemistry of Vestfonna Ice Cap in Svalbard, Norway, J. Geophys. Res.-Atmos., 107, ACH 19-1–ACH 19-7, https://doi.org/10.1029/2002JD002205, 2002.
Maturilli, M., Herber, A., and König-Langlo, G.: Climatology and time series of surface meteorology in Ny-Ålesund, Svalbard, Earth Syst. Sci. Data, 5, 155–163, https://doi.org/10.5194/essd-5-155-2013, 2013.
Noël, B., Jakobs, C. L., van Pelt, W. J. J., Lhermitte, S., Wouters, B., Kohler, J., Hagen, J. O., Luks, B., Reijmer, C. H., van de Berg, W. J., and van den Broeke, M. R.: Low elevation of Svalbard glaciers drives high mass loss variability, Nat. Commun., 11, 4597, https://doi.org/10.1038/s41467-020-18356-1, 2020.
Nuth, C., Schuler, T. V., Kohler, J., Altena, B., and Hagen, J. O.: Estimating the long-term calving flux of Kronebreen, Svalbard, from geodetic elevation changes and mass-balance modeling, J. Glaciol., 58, 119–133, https://doi.org/10.3189/2012JoG11J036, 2017.
Østby, T. I., Schuler, T. V., Hagen, J. O., Hock, R., Kohler, J., and Reijmer, C. H.: Diagnosing the decline in climatic mass balance of glaciers in Svalbard over 1957–2014, The Cryosphere, 11, 191–215, https://doi.org/10.5194/tc-11-191-2017, 2017.
Peeters, B., Pedersen, Å. Ø., Loe, L. E., Isaksen, K., Veiberg, V., Stien, A., Kohler, J., Gallet, J.-C., Aanes, R., and Hansen, B. B.: Spatiotemporal patterns of rain-on-snow and basal ice in high Arctic Svalbard: detection of a climate-cryosphere regime shift, Environ. Res. Lett., 14, 015002, https://doi.org/10.1088/1748-9326/aaefb3, 2019.
Pohjola, V. A., Moore, J. C., Isaksson, E., Jauhiainen, T., Van de Wal, R. S. W., Martma, T., Meijer, H. A. J., and Vaikmae, R.: Effect of periodic melting on geochemical and isotopic signals in an ice core from Lomonosovfonna, Svalbard, J. Geophys. Res.-Atmos., 107, 1–14, 2002.
Rantanen, M., Karpechko, A. Yu., Lipponen, A., Nordling, K., Hyvärinen, O., Ruosteenoja, K., Vihma, T., and Laaksonen, A.: The Arctic has warmed nearly four times faster than the globe since 1979, Commun. Earth Environ., 3, 168, https://doi.org/10.1038/s43247-022-00498-3, 2022.
Ruppel, M. M., Soares, J., Gallet, J.-C., Isaksson, E., Martma, T., Svensson, J., Kohler, J., Pedersen, C. A., Manninen, S., Korhola, A., and Ström, J.: Do contemporary (1980–2015) emissions determine the elemental carbon deposition trend at Holtedahlfonna glacier, Svalbard?, Atmos. Chem. Phys., 17, 12779–12795, https://doi.org/10.5194/acp-17-12779-2017, 2017.
Salzano, R., Cerrato, R., Scoto, F., Spolaor, A., Valentini, E., Salvadore, M., Esposito, G., Sapio, S., Taramelli, A., and Salvatori, R.: Detection of Winter Heat Wave Impact on Surface Runoff in a Periglacial Environment (Ny-Ålesund, Svalbard), Remote Sens.-Basel, 15, 4435, https://doi.org/10.3390/rs15184435, 2023.
Schmidt, L. S., Schuler, T. V., Thomas, E. E., and Westermann, S.: Meltwater runoff and glacier mass balance in the high Arctic: 1991–2022 simulations for Svalbard, The Cryosphere, 17, 2941–2963, https://doi.org/10.5194/tc-17-2941-2023, 2023.
Schuler, T. V., Kohler, J., Elagina, N., Hagen, J. O. M., Hodson, A. J., Jania, J. A., Kääb, A. M., Luks, B., Małecki, J., Moholdt, G., Pohjola, V. A., Sobota, I., and van Pelt, W. J. J.: Reconciling Svalbard Glacier Mass Balance, Front Earth Sci., 8, 156, https://doi.org/10.3389/feart.2020.00156, 2020.
Schwikowski, M., Döscher, A., Gäggeler, H. W., and Schotterer, U.: Anthropogenic versus natural sources of atmospheric sulphate from an Alpine ice core, Tellus B, 51, 938, https://doi.org/10.3402/tellusb.v51i5.16506, 1999.
Schyberg, H., Yang, X., Køltzow, M. A. Ø., Amstrup, B., Bakketun, Å., Bazile, E., Bojarova, J., Box, J. E., Dahlgren, P., Hagelin, S., Homleid, M., Horányi, A., Høyer, J., Johansson, Å., Killie, M. A., Körnich, H., Le Moigne, P., Lindskog, M., Manninen, T., Nielsen Englyst, P., Nielsen, K. P., Olsson, E., Palmason, B., Peralta Aros, C., Randriamampianina, R., Samuelsson, P., Stappers, R., Støylen, E., Thorsteinsson, S., Valkonen, T., and Wang, Z. Q.: Arctic regional reanalysis on single levels from 1991 to present, Copernicus Climate Change Service (C3S) Climate Data Store (CDS) [data set], https://doi.org/10.24381/cds.713858f6, 2020.
Scoto, F., Sadatzki, H., Maffezzoli, N., Barbante, C., Gagliardi, A., Varin, C., Vallelonga, P., Gkinis, V., Dahl-Jensen, D., Kjær, H. A., Burgay, F., Saiz-Lopez, A., Stein, R., and Spolaor, A.: Sea ice fluctuations in the Baffin Bay and the Labrador Sea during glacial abrupt climate changes, P. Natl. Acad. Sci. USA, 119, e2203468119, https://doi.org/10.1073/pnas.2203468119, 2022.
Serreze, M. C. and Barry, R. G.: Processes and impacts of Arctic amplification: A research synthesis, Global Planet. Change, 77, 85–96, https://doi.org/10.1016/j.gloplacha.2011.03.004, 2011.
Sigl, M., McConnell, J. R., Toohey, M., Curran, M., Das, S. B., Edwards, R., Isaksson, E., Kawamura, K., Kipfstuhl, S., Kruger, K., Layman, L., Maselli, O. J., Motizuki, Y., Motoyama, H., Pasteris, D. R., and Severi, M.: Insights from Antarctica on volcanic forcing during the Common Era, Nat. Clim. Change, 4, 693–697, https://doi.org/10.1038/nclimate2293, 2014.
Sobota, I., Weckwerth, P., and Grajewski, T.: Rain-On-Snow (ROS) events and their relations to snowpack and ice layer changes on small glaciers in Svalbard, the high Arctic, J. Hydrol., 590, 125279, https://doi.org/10.1016/j.jhydrol.2020.125279, 2020.
Spolaor, A.: Water Stable Isotopes in the Holthedalfonna Shallow Cores, Zenodo [data set], https://doi.org/10.5281/zenodo.10404940, 2023.
Spolaor, A., Gabrieli, J., Martma, T., Kohler, J., Björkman, M. B., Isaksson, E., Varin, C., Vallelonga, P., Plane, J. M. C., and Barbante, C.: Sea ice dynamics influence halogen deposition to Svalbard, The Cryosphere, 7, 1645–1658, https://doi.org/10.5194/tc-7-1645-2013, 2013.
Spolaor, A., Varin, C., Pedeli, X., Christille, J. M., Kirchgeorg, T., Giardi, F., Cappelletti, D., Turetta, C., Cairns, W. R. L., Gambaro, A., Bernagozzi, A., Gallet, J. C., Björkman, M. P., and Barbaro, E.: Source, timing and dynamics of ionic species mobility in the Svalbard annual snowpack, Sci. Total Environ., 751, 141640, https://doi.org/10.1016/j.scitotenv.2020.141640, 2021.
Steffensen, J. P., Andersen, K. K., Bigler, M., Clausen, H. B., Dahl-Jensen, D., Fischer, H., Goto-Azuma, K., Hansson, M., Johnsen, S. J., Jouzel, J., Masson-Delmotte, V., Popp, T., Rasmussen, S. O., Röthlisberger, R., Ruth, U., Stauffer, B., Siggaard-Andersen, M.-L., Sveinbjörnsdóttir, Á. E., Svensson, A., and White, J. W. C.: High-Resolution Greenland Ice Core Data Show Abrupt Climate Change Happens in Few Years, Science, 321, 680–684, 2008.
Stenni, B., Curran, M. A. J., Abram, N. J., Orsi, A., Goursaud, S., Masson-Delmotte, V., Neukom, R., Goosse, H., Divine, D., van Ommen, T., Steig, E. J., Dixon, D. A., Thomas, E. R., Bertler, N. A. N., Isaksson, E., Ekaykin, A., Werner, M., and Frezzotti, M.: Antarctic climate variability on regional and continental scales over the last 2000 years, Clim. Past, 13, 1609–1634, https://doi.org/10.5194/cp-13-1609-2017, 2017.
Thompson, L. G., Yao, T., Davis, M. E., Mosley-Thompson, E., Wu, G., Porter, S. E., Xu, B., Lin, P.-N., Wang, N., Beaudon, E., Duan, K., Sierra-Hernández, M. R., and Kenny, D. V.: Ice core records of climate variability on the Third Pole with emphasis on the Guliya ice cap, western Kunlun Mountains, Quaternary Sci. Rev., 188, 1–14, https://doi.org/10.1016/j.quascirev.2018.03.003, 2018.
Thompson, L. G., Davis, M. E., Mosley-Thompson, E., Porter, S. E., Corrales, G. V., Shuman, C. A., and Tucker, C. J.: The impacts of warming on rapidly retreating high-altitude, low-latitude glaciers and ice core-derived climate records, Global Planet. Change, 203, 103538, https://doi.org/10.1016/j.gloplacha.2021.103538, 2021.
van Pelt, W. J. J., Kohler, J., Liston, G. E., Hagen, J. O., Luks, B., Reijmer, C. H., and Pohjola, V. A.: Multidecadal climate and seasonal snow conditions in Svalbard, J. Geophys. Res.-Earth, 121, 2100–2117, https://doi.org/10.1002/2016JF003999, 2016.
van Pelt, W., Pohjola, V., Pettersson, R., Marchenko, S., Kohler, J., Luks, B., Hagen, J. O., Schuler, T. V., Dunse, T., Noël, B., and Reijmer, C.: A long-term dataset of climatic mass balance, snow conditions, and runoff in Svalbard (1957–2018), The Cryosphere, 13, 2259–2280, https://doi.org/10.5194/tc-13-2259-2019, 2019.
Vecchiato, M., Gambaro, A., Kehrwald, N. M., Ginot, P., Kutuzov, S., Mikhalenko, V., and Barbante, C.: The Great Acceleration of fragrances and PAHs archived in an ice core from Elbrus, Caucasus, Sci. Rep., 10, 10661, https://doi.org/10.1038/s41598-020-67642-x, 2020.
Watanabe, O., Motoyama, H., Igarashi, M., Kamiyama, K., Matoba, S., Goto-Azuma, K., Narita, H., and Kameda, T.: Studies on climatic and environmental changes during the last few hundred years using ice cores from various sites in Nordaustlandet, Svalbard (scientific paper), Memoirs of National Institute of Polar Research, Special issue, 54, 227–242, 2001.
Wendl, I. A., Eichler, A., Isaksson, E., Martma, T., and Schwikowski, M.: 800-year ice-core record of nitrogen deposition in Svalbard linked to ocean productivity and biogenic emissions, Atmos. Chem. Phys., 15, 7287–7300, https://doi.org/10.5194/acp-15-7287-2015, 2015.
Westermann, S., Ingeman-Nielsen, T., Scheer, J., Aalstad, K., Aga, J., Chaudhary, N., Etzelmüller, B., Filhol, S., Kääb, A., Renette, C., Schmidt, L. S., Schuler, T. V., Zweigel, R. B., Martin, L., Morard, S., Ben-Asher, M., Angelopoulos, M., Boike, J., Groenke, B., Miesner, F., Nitzbon, J., Overduin, P., Stuenzi, S. M., and Langer, M.: The CryoGrid community model (version 1.0) – a multi-physics toolbox for climate-driven simulations in the terrestrial cryosphere, Geosci. Model Dev., 16, 2607–2647, https://doi.org/10.5194/gmd-16-2607-2023, 2023.
Wickström, S., Jonassen, M. O., Cassano, J. J., and Vihma, T.: Present Temperature, Precipitation, and Rain-on-Snow Climate in Svalbard, J. Geophys. Res.-Atmos., 125, e2019JD032155, https://doi.org/10.1029/2019JD032155, 2020.
Wolff, E. W., Barbante, C., Becagli, S., Bigler, M., Boutron, C. F., Castellano, E., de Angelis, M., Federer, U., Fischer, H., and Fundel, F.: Changes in environment over the last 800,000 years from chemical analysis of the EPICA Dome C ice core, Quaternary Sci. Rev., 29, 285–295, 2010.
Zdanowicz, C. M., Proemse, B. C., Edwards, R., Feiteng, W., Hogan, C. M., Kinnard, C., and Fisher, D.: Historical black carbon deposition in the Canadian High Arctic: a > 250-year long ice-core record from Devon Island, Atmos. Chem. Phys., 18, 12345–12361, https://doi.org/10.5194/acp-18-12345-2018, 2018.
Short summary
We evaluate the impact of the increased snowmelt on the preservation of the oxygen isotope (δ18O) signal in firn records recovered from the top of the Holtedahlfonna ice field located in the Svalbard archipelago. Thanks to a multidisciplinary approach we demonstrate a progressive deterioration of the isotope signal in the firn core. We link the degradation of the δ18O signal to the increased occurrence and intensity of melt events associated with the rapid warming occurring in the archipelago.
We evaluate the impact of the increased snowmelt on the preservation of the oxygen isotope...
