Articles | Volume 15, issue 7
Research article 27 Jul 2021
Research article | 27 Jul 2021
Reconstruction of annual accumulation rate on firn, synchronising H2O2 concentration data with an estimated temperature record
Jandyr M. Travassos et al.
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Rafael S. dos Reis, Rafael da Rocha Ribeiro, Barbara Delmonte, Edson Ramirez, Norberto Dani, Paul A. Mayewski, and Jefferson C. Simões
The Cryosphere Discuss.,
Preprint under review for TCShort summary
The ice-core recovered in Peruvian Andes depicts the 12 years of dust particles data in snow accumulation. The seasonality of the dry and wet season, respectively, are represented by high and low dust concentration in profile. Our observations period show the differences between fine and larger particles concentrations over the years and their correlation with oceanic oscillations phenomena. Also, we introduce the link of the dust groupings with Madeira River in the Amazon basin context.
Filipe G. L. Lindau, Jefferson C. Simões, Barbara Delmonte, Patrick Ginot, Giovanni Baccolo, Chiara I. Paleari, Elena Di Stefano, Elena Korotkikh, Douglas S. Introne, Valter Maggi, Eduardo Garzanti, and Sergio Andò
The Cryosphere, 15, 1383–1397,Short summary
Information about the past climate variability in tropical South America is stored in the snow layers of the tropical Andean glaciers. Here we show evidence that the presence of very large aeolian mineral dust particles at Nevado Illimani (Bolivia) is strictly controlled by the occurrence of summer storms in the Bolivian Altiplano. Therefore, based on the snow dust content and its composition of stable water isotopes, we propose a new proxy for information on previous summer storms.
Elizabeth Ruth Thomas, Guisella Gacitúa, Joel B. Pedro, Amy Constance Faith King, Bradley Markle, Mariusz Potocki, and Dorothea Elisabeth Moser
The Cryosphere, 15, 1173–1186,Short summary
Here we present the first-ever radar and ice core data from the sub-Antarctic islands of Bouvet Island, Peter I Island, and Young Island. These islands have the potential to record past climate in one of the most data-sparse regions on earth. Despite their northerly location, surface melting is generally low, and the upper layer of the ice at most sites is undisturbed. We estimate that a 100 m ice core drilled on these islands could capture climate over the past 100–200 years.
Filipe Gaudie Ley Lindau, Jefferson Cardia Simões, Rafael da Rocha Ribeiro, Patrick Ginot, Barbara Delmonte, Giovanni Baccolo, Stanislav Kutuzov, Valter Maggi, and Edson Ramirez
Clim. Past Discuss.,
Manuscript not accepted for further reviewShort summary
Glaciers are important freshwater sources in the Tropical Andes. Their retreat has been accelerating since the 1980s. This exposes fresh glacial sediments and facilitates the transport of coarse dust particles to the Nevado Illimani summit. Both the glacial area of Illimani and its ice core record of coarse dust particles respond to warmer conditions across the southern tropical Andes, and drier conditions over the Amazon basin.
Luciano Marquetto, Susan Kaspari, and Jefferson Cardia Simões
The Cryosphere, 14, 1537–1554,Short summary
Black carbon, commonly known as soot, is a particle originating from the incomplete combustion of fossil fuels and biomass burning that plays an important role in the climatic system. In this work, we analyzed black carbon from an Antarctic ice core spanning 1968–2015 and observed very low concentrations of this particle in the snow, lower than previous works in West Antarctica. We suggest that black carbon transport to East Antarctica is different from its transport to West Antarctica.
Thiago Dias dos Santos, Mathieu Morlighem, Hélène Seroussi, Philippe Remy Bernard Devloo, and Jefferson Cardia Simões
Geosci. Model Dev., 12, 215–232,Short summary
The reduction of numerical errors in ice sheet modeling increases the results' accuracy reliability. We improve numerical accuracy by better capturing grounding line dynamics, while maintaining a low computational cost. We implement an adaptive mesh refinement (AMR) technique in the Ice Sheet System Model and compare AMR simulations with uniformly refined meshes. Our results show that the computational time with AMR is significantly shorter than for uniformly refined meshes for a given accuracy.
Franciele Schwanck, Jefferson C. Simões, Michael Handley, Paul A. Mayewski, Jeffrey D. Auger, Ronaldo T. Bernardo, and Francisco E. Aquino
The Cryosphere, 11, 1537–1552,Short summary
The West Antarctic Ice Sheet (WAIS) is more susceptible to marine influences than the East Antarctica Ice Sheet (EAIS). During recent decades, rapid changes have occurred in the WAIS sector, including flow velocity acceleration, retraction of ice streams, and mass loss. In this study, we use an ice core located near the Pine Island Glacier ice divide to reconstruct mineral dust and marine aerosol transport and the influence of climate variables on the elemental concentration.
Pascal Bohleber, Leo Sold, Douglas R. Hardy, Margit Schwikowski, Patrick Klenk, Andrea Fischer, Pascal Sirguey, Nicolas J. Cullen, Mariusz Potocki, Helene Hoffmann, and Paul Mayewski
The Cryosphere, 11, 469–482,Short summary
Our study is the first to use ground-penetrating radar (GPR) to investigate ice thickness and internal layering at Kilimanjaro’s largest ice body, the Northern Ice Field (NIF). For monitoring the ongoing ice loss, our ice thickness soundings allowed us to estimate the total ice volume remaining at NIF's southern portion. Englacial GPR reflections indicate undisturbed layers within NIF's center and provide a first link between age information obtained from ice coring and vertical wall sampling.
Related subject area
Discipline: Glaciers | Subject: PaleoclimateThe case of a southern European glacier which survived Roman and medieval warm periods but is disappearing under recent warming
Ana Moreno, Miguel Bartolomé, Juan Ignacio López-Moreno, Jorge Pey, Juan Pablo Corella, Jordi García-Orellana, Carlos Sancho, María Leunda, Graciela Gil-Romera, Penélope González-Sampériz, Carlos Pérez-Mejías, Francisco Navarro, Jaime Otero-García, Javier Lapazaran, Esteban Alonso-González, Cristina Cid, Jerónimo López-Martínez, Belén Oliva-Urcia, Sérgio Henrique Faria, María José Sierra, Rocío Millán, Xavier Querol, Andrés Alastuey, and José M. García-Ruíz
The Cryosphere, 15, 1157–1172,Short summary
Our study of the chronological sequence of Monte Perdido Glacier in the Central Pyrenees (Spain) reveals that, although the intense warming associated with the Roman period or Medieval Climate Anomaly produced important ice mass losses, it was insufficient to make this glacier disappear. By contrast, recent global warming has melted away almost 600 years of ice accumulated since the Little Ice Age, jeopardising the survival of this and other southern European glaciers over the next few decades.
Capron, E., Landais, A., Lemieux-Dudon, B., Schilt, A., Masson-Delmotte, V., Buiron, D., Chappellaz, J., Dahl-Jensen, D., Johnsen, S., Leuenberger, M., et al.: Synchronising EDML and NorthGRIP ice cores using δ18O of atmospheric oxygen (δ18O atm) and CH4 measurements over MIS5 (80–123 kyr), Quaternary Sci. Rev., 29, 222–234, 2010. a
Chaovalitwongse, W. and Pardalos, P.: On the time series support vector machine using dynamic time warping kernel for brain activity classification, Cybern. Syst. Anal., 44, 125–138, 2008. a
Cleveland, W. S. and Grosse, E.: Computational methods for local regression, Stat. Comput., 1, 47–62, 1991. a
Criel, J. and Tsiporkova, E.: Gene Time Expression Warper: a tool for alignment, template matching and visualization of gene expression time series, Bioinformatics, 22, 251–252, 2005. a
Gilbert, J. M., Rybchenko, S. I., Hofe, R., Ell, S. R., Fagan, M. J., Moore, R. K., and Green, P.: Isolated word recognition of silent speech using magnetic implants and sensors, Med. Eng. Phys., 32, 1189–1197, 2010. a
Herron, M. M. and Langway Jr., C. C.: Firn densification: an empirical model, J. Glaciol., 25, 373–385, 1980. a
Hutterli, M. A., McConnell, J. R., Bales, R. C., and Stewart, R. W.: Sensitivity of hydrogen peroxide (H2O2) and formaldehyde (HCHO) preservation in snow to changing environmental conditions: Implications for ice core records, J. Geophys. Res.-Atmos., 108, 4023, https://doi.org/10.1029/2002JD002528, 2003. a
Jayadevan, R., Kolhe, S., and Patil, P.: Dynamic time warping based static hand printed signature verification, Journal of Pattern Recognition Research, 1, 52–65, available at: https://api.semanticscholar.org/CorpusID:9609636 (last access: 17 July 2021), 2009. a
Latecki, L. J., Megalooikonomou, V., Wang, Q., and Yu, D.: An elastic partial shape matching technique, Pattern Recogn., 40, 3069–3080, 2007. a
Legrand, B., Chang, C., Ong, S., Neo, S.-Y., and Palanisamy, N.: Chromosome classification using dynamic time warping, Pattern Recogn. Lett., 29, 215–222, 2008. a
Masson-Delmotte, V., Dreyfus, G., Braconnot, P., Johnsen, S., Jouzel, J., Kageyama, M., Landais, A., Loutre, M.-F., Nouet, J., Parrenin, F., Raynaud, D., Stenni, B., and Tuenter, E.: Past temperature reconstructions from deep ice cores: relevance for future climate change, Clim. Past, 2, 145–165, https://doi.org/10.5194/cp-2-145-2006, 2006. a
Nye, J.: Correction factor for accumulation measured by the thickness of the annual layers in an ice sheet, J. Glaciol., 4, 785–788, 1963. a
Potocki, M., Mayewski, P. A., Kurbatov, A. V., Simoes, J. C., Dixon, D. A., Goodwin, I., Carleton, A. M., Handley, M. J., Jaña, R., and Korotkikh, E. V.: Recent increase in Antarctic Peninsula ice core uranium concentrations, Atmos. Environ., 140, 381–385, https://doi.org/10.1016/j.atmosenv.2016.06.010, 2016. a, b, c, d
Rolland, C.: Spatial and seasonal variations of air temperature lapse rates in Alpine regions, J. Climate, 16, 1032–1046, 2003. a
Steig, E. J., Mayewski, P. A., Dixon, D. A., Kaspari, S. D., Frey, M. M., Schneider, D. P., Arcone, S. A., Hamilton, G. S., Spikes, V., Albert, M., Meese, D., Gow, A. J., Shuman, C. A., White, J. W. C., Sneed, S., Flaherty, J., and Wumkes, M.: High-resolution ice cores from US ITASE (West Antarctica): Development and validation of chronologies and determination of precision and accuracy, Ann. Glaciol., 41, 77–84, https://doi.org/10.3189/172756405781813311, 2005. a
Thomas, E. R., van Wessem, J. M., Roberts, J., Isaksson, E., Schlosser, E., Fudge, T. J., Vallelonga, P., Medley, B., Lenaerts, J., Bertler, N., van den Broeke, M. R., Dixon, D. A., Frezzotti, M., Stenni, B., Curran, M., and Ekaykin, A. A.: Regional Antarctic snow accumulation over the past 1000 years, Clim. Past, 13, 1491–1513, https://doi.org/10.5194/cp-13-1491-2017, 2017. a
Thompson, L., Peel, D., Mosley-Thompson, E., Mulvaney, R., Dal, J., Lin, P., Davis, M., and Raymond, C.: Climate since AD 1510 on Dyer Plateau, Antarctic Peninsula: Evidence for recent climate change, Ann. Glaciol., 20, 420–426, 1994. a
Travassos, J. M., Martins, S. S., Simões, J. C., and Mansur, W. J.: Radar diffraction horizons in snow and firn due to a surficial vertical transfer of mass, Brazilian Journal of Geophysics, 36, 507–518, 2018. a
Verbesselt, J., Hyndman, R., Newnham, G., and Culvenor, D.: Detecting trend and seasonal changes in satellite image time series, Remote Sens. Environ., 114, 106–115, 2010. a
Vinther, B. M., Clausen, H. B., Johnsen, S. J., Rasmussen, S. O., Andersen, K. K., Buchardt, S. L., Dahl-Jensen, D., Seierstad, I. K., Siggaard-Andersen, M.-L., Steffensen, J. P., Svensson, A., Olsen, J., and Heinemeier, J.: A synchronized dating of three Greenland ice cores throughout the Holocene, J. Geophys. Res.-Atmos., 111, D13102, https://doi.org/10.1029/2005JD006921, 2006. a, b
Xue, Z., Du, P., and Feng, L.: Phenology-driven land cover classification and trend analysis based on long-term remote sensing image series, IEEE J. Sel. Top. Appl., 7, 1142–1156, 2014. a
This paper gives a timescale estimation and the yearly accumulation rate from ice cores encompassing the entire firn layer at the Detroit Plateau, the Antarctic Peninsula, through a non-linear pairing transformation of high-resolution H2O2 concentration data to a local temperature time series. An 11-year moving average of the yearly ice accumulation rate may suggest an increase in the span of 30 years, with an average of 2.5–2.8 m w.e./year.
This paper gives a timescale estimation and the yearly accumulation rate from ice cores...