Articles | Volume 16, issue 4
https://doi.org/10.5194/tc-16-1369-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-1369-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Apr 2022
Research article |
| 13 Apr 2022
The role of föhn winds in eastern Antarctic Peninsula rapid ice shelf collapse
Department of Earth System Science, University of California, Irvine, USA
Charles S. Zender
Department of Earth System Science, University of California, Irvine, USA
Department of Computer Science, University of California, Irvine, USA
Melchior Wessem
Institute for Marine and Atmospheric Research Utrecht (IMAU), Utrecht University, Utrecht, the Netherlands
Sebastián Marinsek
Department of Glaciology, Instituto Antártico Argentino, Buenos Aires, Argentina
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Chengzhu Zhang, Jean-Christophe Golaz, Ryan Forsyth, Tom Vo, Shaocheng Xie, Zeshawn Shaheen, Gerald L. Potter, Xylar S. Asay-Davis, Charles S. Zender, Wuyin Lin, Chih-Chieh Chen, Chris R. Terai, Salil Mahajan, Tian Zhou, Karthik Balaguru, Qi Tang, Cheng Tao, Yuying Zhang, Todd Emmenegger, Susannah Burrows, and Paul A. Ullrich
Geosci. Model Dev., 15, 9031–9056, https://doi.org/10.5194/gmd-15-9031-2022, https://doi.org/10.5194/gmd-15-9031-2022, 2022
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Earth system model (ESM) developers run automated analysis tools on data from candidate models to inform model development. This paper introduces a new Python package, E3SM Diags, that has been developed to support ESM development and use routinely in the development of DOE's Energy Exascale Earth System Model. This tool covers a set of essential diagnostics to evaluate the mean physical climate from simulations, as well as several process-oriented and phenomenon-based evaluation diagnostics.
Qi Tang, Jean-Christophe Golaz, Luke P. Van Roekel, Mark A. Taylor, Wuyin Lin, Benjamin R. Hillman, Paul A. Ullrich, Andrew M. Bradley, Oksana Guba, Jonathan D. Wolfe, Tian Zhou, Kai Zhang, Xue Zheng, Yunyan Zhang, Meng Zhang, Mingxuan Wu, Hailong Wang, Cheng Tao, Balwinder Singh, Alan M. Rhoades, Yi Qin, Hong-Yi Li, Yan Feng, Yuying Zhang, Chengzhu Zhang, Charles S. Zender, Shaocheng Xie, Erika L. Roesler, Andrew F. Roberts, Azamat Mametjanov, Mathew E. Maltrud, Noel D. Keen, Robert L. Jacob, Christiane Jablonowski, Owen K. Hughes, Ryan M. Forsyth, Alan V. Di Vittorio, Peter M. Caldwell, Gautam Bisht, Renata B. McCoy, L. Ruby Leung, and David C. Bader
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2022-262, https://doi.org/10.5194/gmd-2022-262, 2022
Preprint under review for GMD
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High-resolution simulations are superior to low-resolution ones in capturing regional climate changes and climate extremes, and thus increasingly important. However, uniformly reducing the grid size of global Earth system model is too computationally expensive. We overview the fully coupled Regionally Refined Model (RRM) of E3SMv2 and document a first-of-kind set of climate production simulations using RRM at an economic cost. The key to this success is our innovative hybrid timestep strategy.
Jeremy Carter, Amber Leeson, Andrew Orr, Christoph Kittel, and J. Melchior van Wessem
The Cryosphere, 16, 3815–3841, https://doi.org/10.5194/tc-16-3815-2022, https://doi.org/10.5194/tc-16-3815-2022, 2022
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Climate models provide valuable information for studying processes such as the collapse of ice shelves over Antarctica which impact estimates of sea level rise. This paper examines variability across climate simulations over Antarctica for fields including snowfall, temperature and melt. Significant systematic differences between outputs are found, occurring at both large and fine spatial scales across Antarctica. Results are important for future impact assessments and model development.
Inès N. Otosaka, Andrew Shepherd, Erik R. Ivins, Nicole-Jeanne Schlegel, Charles Amory, Michiel van den Broeke, Martin Horwath, Ian Joughin, Michalea King, Gerhard Krinner, Sophie Nowicki, Tony Payne, Eric Rignot, Ted Scambos, Karen M. Simon, Benjamin Smith, Louise Sandberg Sørensen, Isabella Velicogna, Pippa Whitehouse, Geruo A, Cécile Agosta, Andreas P. Ahlstrøm, Alejandro Blazquez, William Colgan, Marcus Engdahl, Xavier Fettweis, Rene Forsberg, Hubert Gallée, Alex Gardner, Lin Gilbert, Noel Gourmelen, Andreas Groh, Brian C. Gunter, Christopher Harig, Veit Helm, Shfaqat Abbas Khan, Hannes Konrad, Peter Langen, Benoit Lecavalier, Chia-Chun Liang, Bryant Loomis, Malcolm McMillan, Daniele Melini, Sebastian H. Mernild, Ruth Mottram, Jeremie Mouginot, Johan Nilsson, Brice Noël, Mark E. Pattle, William R. Peltier, Nadege Pie, Ingo Sasgen, Himanshu Save, Ki-Weon Seo, Bernd Scheuchl, Ernst Schrama, Ludwig Schröder, Sebastian B. Simonsen, Thomas Slater, Giorgio Spada, Tyler Sutterley, Bramha Dutt Vishwakarma, Jan Melchior van Wessem, David Wiese, Wouter van der Wal, and Bert Wouters
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2022-261, https://doi.org/10.5194/essd-2022-261, 2022
Revised manuscript accepted for ESSD
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By measuring changes in the volume, gravitational attraction and ice flow of Greenland and Antarctica from space, we can monitor their mass gain and loss over time. Here, we present a new record of the Earth’s polar ice sheets mass balance produced by aggregating 50 satellite-based estimates of ice sheet mass change. This new assessment shows that the ice sheets have lost 7.5 trillion tonnes of ice between 1992 and 2020, contributing 21 mm to sea level rise.
Chloe A. Whicker, Mark G. Flanner, Cheng Dang, Charles S. Zender, Joseph M. Cook, and Alex S. Gardner
The Cryosphere, 16, 1197–1220, https://doi.org/10.5194/tc-16-1197-2022, https://doi.org/10.5194/tc-16-1197-2022, 2022
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Snow and ice surfaces are important to the global climate. Current climate models use measurements to determine the reflectivity of ice. This model uses physical properties to determine the reflectivity of snow, ice, and darkly pigmented impurities that reside within the snow and ice. Therefore, the modeled reflectivity is more accurate for snow/ice columns under varying climate conditions. This model paves the way for improvements in the portrayal of snow and ice within global climate models.
Nicolaj Hansen, Sebastian B. Simonsen, Fredrik Boberg, Christoph Kittel, Andrew Orr, Niels Souverijns, J. Melchior van Wessem, and Ruth Mottram
The Cryosphere, 16, 711–718, https://doi.org/10.5194/tc-16-711-2022, https://doi.org/10.5194/tc-16-711-2022, 2022
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We investigate the impact of different ice masks when modelling surface mass balance over Antarctica. We used ice masks and data from five of the most used regional climate models and a common mask. We see large disagreement between the ice masks, which has a large impact on the surface mass balance, especially around the Antarctic Peninsula and some of the largest glaciers. We suggest a solution for creating a new, up-to-date, high-resolution ice mask that can be used in Antarctic modelling.
Peter A. Tuckett, Jeremy C. Ely, Andrew J. Sole, James M. Lea, Stephen J. Livingstone, Julie M. Jones, and J. Melchior van Wessem
The Cryosphere, 15, 5785–5804, https://doi.org/10.5194/tc-15-5785-2021, https://doi.org/10.5194/tc-15-5785-2021, 2021
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Lakes form on the surface of the Antarctic Ice Sheet during the summer. These lakes can generate further melt, break up floating ice shelves and alter ice dynamics. Here, we describe a new automated method for mapping surface lakes and apply our technique to the Amery Ice Shelf between 2005 and 2020. Lake area is highly variable between years, driven by large-scale climate patterns. This technique will help us understand the role of Antarctic surface lakes in our warming world.
Mark G. Flanner, Julian B. Arnheim, Joseph M. Cook, Cheng Dang, Cenlin He, Xianglei Huang, Deepak Singh, S. McKenzie Skiles, Chloe A. Whicker, and Charles S. Zender
Geosci. Model Dev., 14, 7673–7704, https://doi.org/10.5194/gmd-14-7673-2021, https://doi.org/10.5194/gmd-14-7673-2021, 2021
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We present the technical formulation and evaluation of a publicly available code and web-based model to simulate the spectral albedo of snow. Our model accounts for numerous features of the snow state and ambient conditions, including the the presence of light-absorbing matter like black and brown carbon, mineral dust, volcanic ash, and snow algae. Carbon dioxide snow, found on Mars, is also represented. The model accurately reproduces spectral measurements of clean and contaminated snow.
Adrian Chappell, Nicholas Webb, Mark Hennen, Charles Zender, Philippe Ciais, Kerstin Schepanski, Brandon Edwards, Nancy Ziegler, Sandra Jones, Yves Balkanski, Daniel Tong, John Leys, Stephan Heidenreich, Robert Hynes, David Fuchs, Zhenzhong Zeng, Marie Ekström, Matthew Baddock, Jeffrey Lee, and Tarek Kandakji
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2021-337, https://doi.org/10.5194/gmd-2021-337, 2021
Revised manuscript not accepted
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Dust emissions influence global climate while simultaneously reducing the productive potential and resilience of landscapes to climate stressors, together impacting food security and human health. Our results indicate that tuning dust emission models to dust in the atmosphere has hidden dust emission modelling weaknesses and its poor performance. Our new approach will reduce uncertainty and driven by prognostic albedo improve Earth System Models of aerosol effects on future environmental change.
Ruth Mottram, Nicolaj Hansen, Christoph Kittel, J. Melchior van Wessem, Cécile Agosta, Charles Amory, Fredrik Boberg, Willem Jan van de Berg, Xavier Fettweis, Alexandra Gossart, Nicole P. M. van Lipzig, Erik van Meijgaard, Andrew Orr, Tony Phillips, Stuart Webster, Sebastian B. Simonsen, and Niels Souverijns
The Cryosphere, 15, 3751–3784, https://doi.org/10.5194/tc-15-3751-2021, https://doi.org/10.5194/tc-15-3751-2021, 2021
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We compare the calculated surface mass budget (SMB) of Antarctica in five different regional climate models. On average ~ 2000 Gt of snow accumulates annually, but different models vary by ~ 10 %, a difference equivalent to ± 0.5 mm of global sea level rise. All models reproduce observed weather, but there are large differences in regional patterns of snowfall, especially in areas with very few observations, giving greater uncertainty in Antarctic mass budget than previously identified.
J. Melchior van Wessem, Christian R. Steger, Nander Wever, and Michiel R. van den Broeke
The Cryosphere, 15, 695–714, https://doi.org/10.5194/tc-15-695-2021, https://doi.org/10.5194/tc-15-695-2021, 2021
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This study presents the first modelled estimates of perennial firn aquifers (PFAs) in Antarctica. PFAs are subsurface meltwater bodies that do not refreeze in winter due to the isolating effects of the snow they are buried underneath. They were first identified in Greenland, but conditions for their existence are also present in the Antarctic Peninsula. These PFAs can have important effects on meltwater retention, ice shelf stability, and, consequently, sea level rise.
Vincent Verjans, Amber A. Leeson, Christopher Nemeth, C. Max Stevens, Peter Kuipers Munneke, Brice Noël, and Jan Melchior van Wessem
The Cryosphere, 14, 3017–3032, https://doi.org/10.5194/tc-14-3017-2020, https://doi.org/10.5194/tc-14-3017-2020, 2020
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Ice sheets are covered by a firn layer, which is the transition stage between fresh snow and ice. Accurate modelling of firn density properties is important in many glaciological aspects. Current models show disagreements, are mostly calibrated to match specific observations of firn density and lack thorough uncertainty analysis. We use a novel calibration method for firn models based on a Bayesian statistical framework, which results in improved model accuracy and in uncertainty evaluation.
Adam M. Schneider, Charles S. Zender, and Stephen F. Price
Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2020-247, https://doi.org/10.5194/gmd-2020-247, 2020
Preprint withdrawn
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We enhance the Energy Exascale Earth System Model's land
component (ELM) to better represent multi-year snow (firn) on ice sheets. Our
developments reveal ELM deficiencies regarding firn density, a fundamental
property in glaciology. To improve firn density profiles, we fine tune
ELM's snowpack parameters using statistical modeling. Our findings demonstrate
how ELM can simulate both seasonal snow and firn on ice sheets and advance a
broader effort to better predict sea level rise.
Cheng Dang, Charles S. Zender, and Mark G. Flanner
The Cryosphere, 13, 2325–2343, https://doi.org/10.5194/tc-13-2325-2019, https://doi.org/10.5194/tc-13-2325-2019, 2019
Tyler C. Sutterley, Thorsten Markus, Thomas A. Neumann, Michiel van den Broeke, J. Melchior van Wessem, and Stefan R. M. Ligtenberg
The Cryosphere, 13, 1801–1817, https://doi.org/10.5194/tc-13-1801-2019, https://doi.org/10.5194/tc-13-1801-2019, 2019
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Most of the Antarctic ice sheet is fringed by ice shelves, floating extensions of ice that help to modulate the flow of the glaciers that float into them. We use airborne laser altimetry data to measure changes in ice thickness of ice shelves around West Antarctica and the Antarctic Peninsula. Each of our target ice shelves is susceptible to short-term changes in ice thickness. The method developed here provides a framework for processing NASA ICESat-2 data over ice shelves.
Qi Tang, Stephen A. Klein, Shaocheng Xie, Wuyin Lin, Jean-Christophe Golaz, Erika L. Roesler, Mark A. Taylor, Philip J. Rasch, David C. Bader, Larry K. Berg, Peter Caldwell, Scott E. Giangrande, Richard B. Neale, Yun Qian, Laura D. Riihimaki, Charles S. Zender, Yuying Zhang, and Xue Zheng
Geosci. Model Dev., 12, 2679–2706, https://doi.org/10.5194/gmd-12-2679-2019, https://doi.org/10.5194/gmd-12-2679-2019, 2019
Katherine J. Evans, Joseph H. Kennedy, Dan Lu, Mary M. Forrester, Stephen Price, Jeremy Fyke, Andrew R. Bennett, Matthew J. Hoffman, Irina Tezaur, Charles S. Zender, and Miren Vizcaíno
Geosci. Model Dev., 12, 1067–1086, https://doi.org/10.5194/gmd-12-1067-2019, https://doi.org/10.5194/gmd-12-1067-2019, 2019
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A robust validation of ice sheet models is presented using LIVVkit, version 2.1. It targets ice sheet and coupled Earth system models, and handles datasets and operations that require high-performance computing and storage. We apply LIVVkit to a Greenland ice sheet simulation to show the degree to which it captures the surface mass balance. LIVVkit identifies a positive bias due to insufficient melting compared to observations that is focused largely around Greenland's southwest region.
Cécile Agosta, Charles Amory, Christoph Kittel, Anais Orsi, Vincent Favier, Hubert Gallée, Michiel R. van den Broeke, Jan T. M. Lenaerts, Jan Melchior van Wessem, Willem Jan van de Berg, and Xavier Fettweis
The Cryosphere, 13, 281–296, https://doi.org/10.5194/tc-13-281-2019, https://doi.org/10.5194/tc-13-281-2019, 2019
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Antarctic surface mass balance (ASMB), a component of the sea level budget, is commonly estimated through modelling as observations are scarce. The polar-oriented regional climate model MAR performs well in simulating the observed ASMB. MAR and RACMO2 share common biases we relate to drifting snow transport, with a 3 times larger magnitude than in previous estimates. Sublimation of precipitation in the katabatic layer modelled by MAR is of a magnitude similar to an observation-based estimate.
Jan Melchior van Wessem, Willem Jan van de Berg, Brice P. Y. Noël, Erik van Meijgaard, Charles Amory, Gerit Birnbaum, Constantijn L. Jakobs, Konstantin Krüger, Jan T. M. Lenaerts, Stef Lhermitte, Stefan R. M. Ligtenberg, Brooke Medley, Carleen H. Reijmer, Kristof van Tricht, Luke D. Trusel, Lambertus H. van Ulft, Bert Wouters, Jan Wuite, and Michiel R. van den Broeke
The Cryosphere, 12, 1479–1498, https://doi.org/10.5194/tc-12-1479-2018, https://doi.org/10.5194/tc-12-1479-2018, 2018
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We present a detailed evaluation of the latest version of the regional atmospheric climate model RACMO2.3p2 (1979-2016) over the Antarctic ice sheet. The model successfully reproduces the present-day climate and surface mass balance (SMB) when compared with an extensive set of observations and improves on previous estimates of the Antarctic climate and SMB.
This study shows that the latest version of RACMO2 can be used for high-resolution future projections over the AIS.
Helmut Rott, Wael Abdel Jaber, Jan Wuite, Stefan Scheiblauer, Dana Floricioiu, Jan Melchior van Wessem, Thomas Nagler, Nuno Miranda, and Michiel R. van den Broeke
The Cryosphere, 12, 1273–1291, https://doi.org/10.5194/tc-12-1273-2018, https://doi.org/10.5194/tc-12-1273-2018, 2018
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We analysed volume change, mass balance and ice flow of glaciers draining into the Larsen A and Larsen B embayments on the Antarctic Peninsula for 2011 to 2013 and 2013 to 2016. The mass balance is based on elevation change measured by the radar satellite mission TanDEM-X and on the mass budget method. The glaciers show continuing losses in ice mass, which is a response to ice shelf break-up. After 2013 the downwasting of glaciers slowed down, coinciding with years of persistent sea ice cover.
Brice Noël, Willem Jan van de Berg, J. Melchior van Wessem, Erik van Meijgaard, Dirk van As, Jan T. M. Lenaerts, Stef Lhermitte, Peter Kuipers Munneke, C. J. P. Paul Smeets, Lambertus H. van Ulft, Roderik S. W. van de Wal, and Michiel R. van den Broeke
The Cryosphere, 12, 811–831, https://doi.org/10.5194/tc-12-811-2018, https://doi.org/10.5194/tc-12-811-2018, 2018
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We present a detailed evaluation of the latest version of the regional climate model RACMO2.3p2 at 11 km resolution (1958–2016) over the Greenland ice sheet (GrIS). The model successfully reproduces the present-day climate and surface mass balance, i.e. snowfall minus meltwater run-off, of the GrIS compared to in situ observations. Since run-off from marginal narrow glaciers is poorly resolved at 11 km, further statistical downscaling to 1 km resolution is required for mass balance studies.
Elizabeth R. Thomas, J. Melchior van Wessem, Jason Roberts, Elisabeth Isaksson, Elisabeth Schlosser, Tyler J. Fudge, Paul Vallelonga, Brooke Medley, Jan Lenaerts, Nancy Bertler, Michiel R. van den Broeke, Daniel A. Dixon, Massimo Frezzotti, Barbara Stenni, Mark Curran, and Alexey A. Ekaykin
Clim. Past, 13, 1491–1513, https://doi.org/10.5194/cp-13-1491-2017, https://doi.org/10.5194/cp-13-1491-2017, 2017
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Regional Antarctic snow accumulation derived from 79 ice core records is evaluated as part of the PAGES Antarctica 2k working group. Our results show that surface mass balance for the total Antarctic ice sheet has increased at a rate of 7 ± 0.13 Gt dec-1 since 1800 AD, representing a net reduction in sea level of ~ 0.02 mm dec-1 since 1800 and ~ 0.04 mm dec-1 since 1900 AD. The largest contribution is from the Antarctic Peninsula.
Jeremy D. Silver and Charles S. Zender
Geosci. Model Dev., 10, 413–423, https://doi.org/10.5194/gmd-10-413-2017, https://doi.org/10.5194/gmd-10-413-2017, 2017
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Many modern scientific research projects generate large amounts of data. Storage space is valuable and may be limited; hence compression is vital. We tested different compression methods for large gridded data sets, assessing the space savings and the amount of precision lost. We found a general trade-off between precision and compression, with compression well-predicted by the entropy of the data set. A method introduced here proved to be a competitive archive format for gridded numerical data.
Charles S. Zender
Geosci. Model Dev., 9, 3199–3211, https://doi.org/10.5194/gmd-9-3199-2016, https://doi.org/10.5194/gmd-9-3199-2016, 2016
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We introduce Bit Grooming, a lossy compression algorithm that removes the bloat due to false precision, those bits and bytes beyond the meaningful precision of the data. Bit Grooming is statistically unbiased, applies to all floating-point numbers, and is easy to use. Bit Grooming reduces data storage requirements by 25–80 %. Unlike its best-known competitor Linear Packing, Bit Grooming imposes no software overhead on users, and guarantees its precision throughout the whole floating-point range.
Wenshan Wang, Charles S. Zender, Dirk van As, Paul C. J. P. Smeets, and Michiel R. van den Broeke
The Cryosphere, 10, 727–741, https://doi.org/10.5194/tc-10-727-2016, https://doi.org/10.5194/tc-10-727-2016, 2016
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We identify and correct station-tilt-induced biases in insolation observed by automatic weather stations on the Greenland Ice Sheet. Without tilt correction, only 40 % of clear days have the correct solar noon time (±0.5 h). The largest hourly bias exceeds 20 %. We estimate the tilt angles based on solar geometric relationship between insolation observed on horizontal surfaces and that on tilted surfaces, and produce shortwave radiation and albedo that agree better with independent data sets.
J. M. van Wessem, S. R. M. Ligtenberg, C. H. Reijmer, W. J. van de Berg, M. R. van den Broeke, N. E. Barrand, E. R. Thomas, J. Turner, J. Wuite, T. A. Scambos, and E. van Meijgaard
The Cryosphere, 10, 271–285, https://doi.org/10.5194/tc-10-271-2016, https://doi.org/10.5194/tc-10-271-2016, 2016
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This study presents the first high-resolution (5.5 km) modelled estimate of surface mass balance (SMB) over the period 1979–2014 for the Antarctic Peninsula (AP). Precipitation (snowfall and rain) largely determines the SMB, and is exceptionally high over the western mountain slopes, with annual values > 4 m water equivalent. Snowmelt is widespread over the AP, but only runs off into the ocean at some locations: the Larsen B,C, and Wilkins ice shelves, and along the north-western mountains.
R. A. Scanza, N. Mahowald, S. Ghan, C. S. Zender, J. F. Kok, X. Liu, Y. Zhang, and S. Albani
Atmos. Chem. Phys., 15, 537–561, https://doi.org/10.5194/acp-15-537-2015, https://doi.org/10.5194/acp-15-537-2015, 2015
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The main purpose of this study was to build a framework in the Community Atmosphere Models version 4 and 5 within the Community Earth System Model to simulate dust aerosols as their component minerals. With this framework, we investigate the direct radiative forcing that results from the mineral speciation. We find that adding mineralogy results in a small positive forcing at the top of the atmosphere, while simulations without mineralogy have a small negative forcing.
J. M. van Wessem, C. H. Reijmer, J. T. M. Lenaerts, W. J. van de Berg, M. R. van den Broeke, and E. van Meijgaard
The Cryosphere, 8, 125–135, https://doi.org/10.5194/tc-8-125-2014, https://doi.org/10.5194/tc-8-125-2014, 2014
M. G. Tosca, J. T. Randerson, and C. S. Zender
Atmos. Chem. Phys., 13, 5227–5241, https://doi.org/10.5194/acp-13-5227-2013, https://doi.org/10.5194/acp-13-5227-2013, 2013
Related subject area
Discipline: Glaciers | Subject: Atmospheric Interactions
The distribution and evolution of supraglacial lakes on 79° N Glacier (north-eastern Greenland) and interannual climatic controls
Atmospheric extremes caused high oceanward sea surface slope triggering the biggest calving event in more than 50 years at the Amery Ice Shelf
Spatio-temporal flow variations driving heat exchange processes at a mountain glacier
Measurements and modeling of snow albedo at Alerce Glacier, Argentina: effects of volcanic ash, snow grain size, and cloudiness
Towards understanding the pattern of glacier mass balances in High Mountain Asia using regional climatic modelling
A multi-season investigation of glacier surface roughness lengths through in situ and remote observation
Variability in individual particle structure and mixing states between the glacier–snowpack and atmosphere in the northeastern Tibetan Plateau
Jenny V. Turton, Philipp Hochreuther, Nathalie Reimann, and Manuel T. Blau
The Cryosphere, 15, 3877–3896, https://doi.org/10.5194/tc-15-3877-2021, https://doi.org/10.5194/tc-15-3877-2021, 2021
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We assess the climatic controls of melt lake development, melt duration, melt extent, and the spatial distribution of lakes of 79°N Glacier. There is a large interannual variability in the areal extent of the lakes and the maximum elevation of lake development, which is largely controlled by the summertime air temperatures and the snowpack thickness. Late-summer lake development can be prompted by spikes in surface mass balance. There is some evidence of inland expansion of lakes over time.
Diana Francis, Kyle S. Mattingly, Stef Lhermitte, Marouane Temimi, and Petra Heil
The Cryosphere, 15, 2147–2165, https://doi.org/10.5194/tc-15-2147-2021, https://doi.org/10.5194/tc-15-2147-2021, 2021
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The unexpected September 2019 calving event from the Amery Ice Shelf, the largest since 1963 and which occurred almost a decade earlier than expected, was triggered by atmospheric extremes. Explosive twin polar cyclones provided a deterministic role in this event by creating oceanward sea surface slope triggering the calving. The observed record-anomalous atmospheric conditions were promoted by blocking ridges and Antarctic-wide anomalous poleward transport of heat and moisture.
Rebecca Mott, Ivana Stiperski, and Lindsey Nicholson
The Cryosphere, 14, 4699–4718, https://doi.org/10.5194/tc-14-4699-2020, https://doi.org/10.5194/tc-14-4699-2020, 2020
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The Hintereisferner Experiment (HEFEX) investigated spatial and temporal dynamics of the near-surface boundary layer and associated heat exchange processes close to the glacier surface during the melting season. Turbulence data suggest that strong changes in the local thermodynamic characteristics occur when westerly flows disturbed prevailing katabatic flow, forming across-glacier flows and facilitating warm-air advection from the surrounding ice-free areas, which potentially promote ice melt.
Julián Gelman Constantin, Lucas Ruiz, Gustavo Villarosa, Valeria Outes, Facundo N. Bajano, Cenlin He, Hector Bajano, and Laura Dawidowski
The Cryosphere, 14, 4581–4601, https://doi.org/10.5194/tc-14-4581-2020, https://doi.org/10.5194/tc-14-4581-2020, 2020
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We present the results of two field campaigns and modeling activities on the impact of atmospheric particles on Alerce Glacier (Argentinean Andes). We found that volcanic ash remains at different snow layers several years after eruption, increasing light absorption on the glacier surface (with a minor contribution of soot). This leads to 36 % higher annual glacier melting. We find remarkably that volcano eruptions in 2011 and 2015 have a relevant effect on the glacier even in 2016 and 2017.
Remco J. de Kok, Philip D. A. Kraaijenbrink, Obbe A. Tuinenburg, Pleun N. J. Bonekamp, and Walter W. Immerzeel
The Cryosphere, 14, 3215–3234, https://doi.org/10.5194/tc-14-3215-2020, https://doi.org/10.5194/tc-14-3215-2020, 2020
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Glaciers worldwide are shrinking, yet glaciers in parts of High Mountain Asia are growing. Using models of the regional climate and glacier growth, we reproduce the observed patterns of glacier growth and shrinkage in High Mountain Asia of the last decades. Increases in snow, in part from water that comes from lowland agriculture, have probably been more important than changes in temperature to explain the growing glaciers. We now better understand changes in the crucial mountain water cycle.
Noel Fitzpatrick, Valentina Radić, and Brian Menounos
The Cryosphere, 13, 1051–1071, https://doi.org/10.5194/tc-13-1051-2019, https://doi.org/10.5194/tc-13-1051-2019, 2019
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Measurements of surface roughness are rare on glaciers, despite being an important control for heat exchange with the atmosphere and surface melt. In this study, roughness values were determined through measurements at multiple locations and seasons and found to vary across glacier surfaces and to differ from commonly assumed values in melt models. Two new methods that remotely determine roughness from digital elevation models returned good performance and may facilitate improved melt modelling.
Zhiwen Dong, Shichang Kang, Dahe Qin, Yaping Shao, Sven Ulbrich, and Xiang Qin
The Cryosphere, 12, 3877–3890, https://doi.org/10.5194/tc-12-3877-2018, https://doi.org/10.5194/tc-12-3877-2018, 2018
Short summary
Short summary
This study aimed to provide a first and unique record of physicochemical properties and mixing states of LAPs at the glacier and atmosphere interface over the northeastern Tibetan Plateau to determine the individual LAPs' structure aging and mixing state changes through the atmospheric deposition process from atmosphere to glacier–snowpack surface, thereby helping to characterize the LAPs' radiative forcing and climate effects in the cryosphere region.
Cited articles
Abram, N. J., Mulvaney, R., Vimeux, F., Phipps, S. J., Turner, J., and
England, M. H.: Evolution of the Southern Annular Mode during the past
millennium, Nat. Clim. Change, 4, 564–569, https://doi.org/10.1038/nclimate2235,
2014.
Adusumilli, S., Fricker, H. A., Siegfried, M. R., Padman, L., Paolo, F. S.,
and Ligtenberg, S. R. M.: Variable Basal Melt Rates of Antarctic Peninsula
Ice Shelves, 1994–2016, Geophys. Res. Lett., 45, 4086–4095,
https://doi.org/10.1002/2017GL076652, 2018.
Alley, K. E., Scambos, T. A., Miller, J. Z., Long, D. G., and MacFerrin, M.:
Quantifying vulnerability of Antarctic ice shelves to hydrofracture using
microwave scattering properties, Remote Sens. Environ., 210, 297–306,
https://doi.org/10.1016/j.rse.2018.03.025, 2018.
Banwell, A. F., MacAyeal, D. R., and Sergienko, O. V.: Breakup of the Larsen
B Ice Shelf triggered by chain reaction drainage of supraglacial lakes,
Geophys. Res. Lett., 40, 5872–5876, https://doi.org/10.1002/2013GL057694, 2013.
Banwell, A. F., Caballero, M., Arnold, N. S., Glasser, N. F., Cathles, L. M., and MacAyeal, D. R.: Supraglacial lakes on the Larsen B ice shelf,
Antarctica, and at Paakitsoq, West Greenland: A comparative study, Ann.
Glaciol., 55, 1–8, https://doi.org/10.3189/2014AoG66A049, 2014.
Banwell, A. F., Willis, I. C., MacDonald, G. J., Goodsell, B., Mayer, D. P.,
Powell, A., and MacAyeal, D. R.: Calving and rifting on the McMurdo Ice
Shelf, Antarctica, Ann. Glaciol., 58, 78–87, https://doi.org/10.1017/aog.2017.12,
2017.
Banwell, A. F., Willis, I. C., Macdonald, G. J., Goodsell, B., and MacAyeal,
D. R.: Direct measurements of ice-shelf flexure caused by surface meltwater
ponding and drainage, Nat. Commun., 10, 730, https://doi.org/10.1038/s41467-019-08522-5,
2019.
Bell, R. E., Banwell, A. F., Trusel, L. D., and Kingslake, J.: Antarctic
surface hydrology and impacts on ice-sheet mass balance, Nat. Clim. Change,
8, 1044–1052, https://doi.org/10.1038/s41558-018-0326-3, 2018.
Bevan, S. L., Luckman, A., Hubbard, B., Kulessa, B., Ashmore, D., Kuipers Munneke, P., O'Leary, M., Booth, A., Sevestre, H., and McGrath, D.: Centuries of intense surface melt on Larsen C Ice Shelf, The Cryosphere, 11, 2743–2753, https://doi.org/10.5194/tc-11-2743-2017, 2017.
Borstad, C., Khazendar, A., Scheuchl, B., Morlighem, M., Larour, E., and
Rignot, E.: A constitutive framework for predicting weakening and reduced
buttressing of ice shelves based on observations of the progressive
deterioration of the remnant Larsen B Ice Shelf, Geophys. Res. Lett., 43,
2027–2035, https://doi.org/10.1002/2015GL067365, 2016.
Bozkurt, D., Rondanelli, R., Marín, J. C., and Garreaud, R.: Foehn Event
Triggered by an Atmospheric River Underlies Record-Setting Temperature Along
Continental Antarctica, J. Geophys. Res.-Atmos., 123, 3871–3892, https://doi.org/10.1002/2017JD027796,
2018.
Bozkurt, D., Bromwich, D. H., Carrasco, J., Hines, K. M., Maureira, J. C.,
and Rondanelli, R.: Recent Near-surface Temperature Trends in the Antarctic
Peninsula from Observed, Reanalysis and Regional Climate Model Data, Adv.
Atmos. Sci., 37, 477–493, https://doi.org/10.1007/s00376-020-9183-x, 2020.
Bozkurt, D., Bromwich, D. H., Carrasco, J., and Rondanelli, R.: Temperature
and precipitation projections for the Antarctic Peninsula over the next two
decades: contrasting global and regional climate model simulations, Clim.
Dynam., 56, 3853–3874, https://doi.org/10.1007/s00382-021-05667-2, 2021.
Braun, M. and Humbert, A.: Recent retreat of wilkins ice shelf reveals new
insights in ice shelf breakup mechanisms, IEEE Geosci. Remote Sens. Lett.,
6, 263–267, https://doi.org/10.1109/LGRS.2008.2011925, 2009.
Bromwich, D. H. and Kurtz, D. D.: Katabatic wind forcing of the Terra Nova
Bay polynya., J. Geophys. Res., 89, 3561–3572,
https://doi.org/10.1029/JC089iC03p03561, 1984.
Burton, J. C., Cathles, L. M., and Wilder, W. G.: The role of cooperative
iceberg capsize in ice-shelf disintegration, Ann. Glaciol., 54, 84–90,
https://doi.org/10.3189/2013AoG63A436, 2013.
Cape, M. R., Vernet, M., Skvarca, P., Marinsek, S., Scambos, T., and Domack,
E.: Foehn winds link climate-driven warming to ice shelf evolution in
Antarctica, J. Geophys. Res., 120, 11037–11057, https://doi.org/10.1002/2015JD023465, 2015.
Carrasco, J. F., Bozkurt, D., and Cordero, R. R.: A review of the observed
air temperature in the Antarctic Peninsula. Did the warming trend come back
after the early 21st hiatus?, Polar Sci., 28, 100653
https://doi.org/10.1016/j.polar.2021.100653, 2021.
Cook, A. J. and Vaughan, D. G.: Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years, The Cryosphere, 4, 77–98, https://doi.org/10.5194/tc-4-77-2010, 2010.
Datta, R. T., Tedesco, M., Fettweis, X., Agosta, C., Lhermitte, S.,
Lenaerts, J. T. M., and Wever, N.: The Effect of Foehn-Induced Surface Melt
on Firn Evolution Over the Northeast Antarctic Peninsula, Geophys. Res.
Lett., 46, 3822–3831, https://doi.org/10.1029/2018GL080845, 2019.
Depoorter, M. A., Bamber, J. L., Griggs, J. A., Lenaerts, J. T. M.,
Ligtenberg, S. R. M., Van Den Broeke, M. R., and Moholdt, G.: Calving fluxes
and basal melt rates of Antarctic ice shelves, Nature, 502, 89–92,
https://doi.org/10.1038/nature12567, 2013.
Doake, C. S. M., Corr, H. F. J., Rott, H., Skvarca, P., and Young, N. W.:
Breakup and conditions for stability of the northern Larsen Ice Shelf,
Antarctica, Nature, 391, 778–780, 1988.
ECMWF: IFS Documentation CY33R1 – Part IV: Physical Processes, in: IFS Documentation CY33R1, vol. 4., https://www.ecmwf.int/en/elibrary/9227-part-iv-physical-processes/ (last access: 6 April 2022), 2009.
ECMWF: What are the changes from ERA-Interim to ERA5?, https://confluence.ecmwf.int//pages/viewpage.action?pageId=74764925 (last access: 6 March 2020), 2018.
ECMWF: ECMWF Reanalysis v5 (ERA5), ECMWF [data set], https://www.ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-v5, last access: 8 April 2022.
Elvidge, A. D., Renfrew, I. A., King, J. C., Orr, A., Lachlan-Cope, T. A.,
Weeks, M., and Gray, S. L.: Foehn jets over the Larsen C Ice Shelf,
Antarctica, Q. J. Roy. Meteor. Soc., 141, 698–713,
https://doi.org/10.1002/qj.2382, 2015.
Elvidge, A. D., Kuipers Munneke, P., King, J. C., Renfrew, I. A., and
Gilbert, E.: Atmospheric Drivers of Melt on Larsen C Ice Shelf: Surface
Energy Budget Regimes and the Impact of Foehn, J. Geophys. Res.-Atmos.,
125, e2020JD032463, https://doi.org/10.1029/2020JD032463, 2020.
Glasser, N. F. and Scambos, T. A.: A structural glaciological analysis of
the 2002 Larsen B ice-shelf collapse, J. Glaciol., 54, 3–16,
https://doi.org/10.3189/002214308784409017, 2008.
Glasser, N. F., Kulessa, B., Luckman, A., Jansen, D., King, E. C., Sammonds,
P. R., Scambos, T. A., and Jezek, K. C.: Surface structure and stability of
the Larsen C ice shelf, J. Glaciol., 55, 400–410, 2009.
Grosvenor, D. P., King, J. C., Choularton, T. W., and Lachlan-Cope, T.: Downslope föhn winds over the Antarctic Peninsula and their effect on the Larsen ice shelves, Atmos. Chem. Phys., 14, 9481–9509, https://doi.org/10.5194/acp-14-9481-2014, 2014.
Gudmundsson, G. H.: Ice-shelf buttressing and the stability of marine ice sheets, The Cryosphere, 7, 647–655, https://doi.org/10.5194/tc-7-647-2013, 2013.
Holland, P. R., Corr, H. F. J., Pritchard, H. D., Vaughan, D. G., Arthern, R. J.,
Jenkins, A., and Tedesco, M.: The air content of Larsen Ice Shelf, Geophys.
Res. Lett., 38, L10503, https://doi.org/10.1029/2011GL047245, 2011.
Hubbard, B., Luckman, A., Ashmore, D. W., Bevan, S., Kulessa, B., Kuipers
Munneke, P., Philippe, M., Jansen, D., Booth, A., Sevestre, H., Tison, J.
L., O'Leary, M., and Rutt, I.: Massive subsurface ice formed by refreezing of
ice-shelf melt ponds, Nat. Commun., 7, 11897, https://doi.org/10.1038/ncomms11897, 2016.
King, J. C., Gadian, A., Kirchgaessner, A., Kuipers Munneke, P.,
Lachlan-Cope, T. A., Orr, A., Reijmer, C., van den Broeke, M. R., van
Wessem, J. M., and Weeks, M.: Validation of the summertime surface energy
budget of Larsen C Ice Shelf (Antarctica) as represented in three
high-resolution atmospheric models, J. Geophys. Res., 120, 1335–1347,
https://doi.org/10.1002/2014JD022604, 2015.
King, J. C., Kirchgaessner, A., Bevan, S., Elvidge, A. D., Kuipers Munneke,
P., Luckman, A., Orr, A., Renfrew, I. A., and van den Broeke, M. R.: The
Impact of Föhn Winds on Surface Energy Balance During the 2010–2011
Melt Season Over Larsen C Ice Shelf, Antarctica, J. Geophys. Res.-Atmos., 122, 12062–12076,
https://doi.org/10.1002/2017JD026809, 2017.
Kirchgaessner, A., King, J. C., and Anderson, P. S.: The Impact of Föhn
Conditions Across the Antarctic Peninsula on Local Meteorology Based on AWS
Measurements, J. Geophys. Res.-Atmos., 126, e2020JD033748, https://doi.org/10.1029/2020JD033748,
2021.
Kuipers Munneke, P., van den Broeke, M. R., King, J. C., Gray, T., and Reijmer, C. H.: Near-surface climate and surface energy budget of Larsen C ice shelf, Antarctic Peninsula, The Cryosphere, 6, 353–363, https://doi.org/10.5194/tc-6-353-2012, 2012.
Kuipers Munneke, P., Ligtenberg, S. R. M., Van Den Broeke, M. R., and Vaughan, D.
G.: Firn air depletion as a precursor of Antarctic ice-shelf collapse, J.
Glaciol., 60, 205–214, https://doi.org/10.3189/2014JoG13J183, 2014.
Kuipers Munneke, P., Luckman, A. J., Bevan, S. L., Smeets, C. J. P. P.,
Gilbert, E., van den Broeke, M. R., Wang, W., Zender, C., Hubbard, B.,
Ashmore, D., Orr, A., King, J. C., and Kulessa, B.: Intense Winter Surface
Melt on an Antarctic Ice Shelf, Geophys. Res. Lett., 45, 7615–7623,
https://doi.org/10.1029/2018GL077899, 2018.
Laffin, M. K., Zender, C. S., Singh, S., Van Wessem, J. M., Smeets, C. J. P.
P., and Reijmer, C. H.: Climatology and Evolution of the Antarctic Peninsula
Föhn Wind-Induced Melt Regime From 1979–2018, J. Geophys. Res.-Atmos.,
126, e2020JD033682, https://doi.org/10.1029/2020JD033682, 2021 (data available at: https://scikit-learn.org/stable/, last access: 8 April 2022).
Larour, E., Rignot, E., Poinelli, M., and Scheuchl, B.: Physical processes
controlling the rifting of Larsen C Ice Shelf, Antarctica, prior to the
calving of iceberg A68, P. Natl. Acad. Sci. USA, 118, e2105080118,
https://doi.org/10.1073/pnas.2105080118, 2021.
Leeson, A. A., Van Wessem, J. M., Ligtenberg, S. R. M., Shepherd, A., Van
Den Broeke, M. R., Killick, R., Skvarca, P., Marinsek, S., and Colwell, S.:
Regional climate of the Larsen B embayment 1980–2014, J. Glaciol., 63,
683–690, https://doi.org/10.1017/jog.2017.39, 2017.
Leeson, A. A., Forster, E., Rice, A., Gourmelen, N., and van Wessem, J. M.:
Evolution of Supraglacial Lakes on the Larsen B Ice Shelf in the Decades
Before it Collapsed, Geophys. Res. Lett., 47, e2019GL085591, https://doi.org/10.1029/2019GL085591,
2020.
Lenaerts, J. T. M., Lhermitte, S., Drews, R., Ligtenberg, S. R. M., Berger,
S., Helm, V., Smeets, C. J. P. P., Broeke, M. R. V. Den, Van De Berg, W. J.,
Van Meijgaard, E., Eijkelboom, M., Eisen, O., and Pattyn, F.: Meltwater
produced by wind-albedo interaction stored in an East Antarctic ice shelf,
Nat. Clim. Change, 7, 58–62, https://doi.org/10.1038/nclimate3180, 2017.
Lhermitte, S., Sun, S., Shuman, C., Wouters, B., Pattyn, F., Wuite, J.,
Berthier, E., and Nagler, T.: Damage accelerates ice shelf instability and
mass loss in Amundsen Sea Embayment, Sci. Libr. Ser., 117, 24735–24741,
https://doi.org/10.1073/pnas.1912890117, 2020.
Lim, E. P., Hendon, H. H., Arblaster, J. M., Delage, F., Nguyen, H., Min, S.
K., and Wheeler, M. C.: The impact of the Southern Annular Mode on future
changes in Southern Hemisphere rainfall, Geophys. Res. Lett., 43,
7160–7167, https://doi.org/10.1002/2016GL069453, 2016.
Luckman, A., Elvidge, A., Jansen, D., Kulessa, B., Kuipers Munneke, P.,
King, J., and Barrand, N. E.: Surface melt and ponding on Larsen C Ice Shelf
and the impact of föhn winds, Antarct. Sci., 26,
https://doi.org/10.1017/S0954102014000339, 2014.
Massom, R. A., Scambos, T. A., Bennetts, L. G., Reid, P., Squire, V. A., and
Stammerjohn, S. E.: Antarctic ice shelf disintegration triggered by sea ice
loss and ocean swell, Nature, 558, 383–389,
https://doi.org/10.1038/s41586-018-0212-1, 2018.
McGrath, D., Steffen, K., Holland, P. R., Scambos, T., Rajaram, H.,
Abdalati, W., and Rignot, E.: The structure and effect of suture zones in the
Larsen C Ice Shelf, Antarctica, J. Geophys. Res.-Earth, 119,
588–602, https://doi.org/10.1002/2013JF002935, 2014.
Morris, E. M. and Vaughan, D. G.: Spatial and Temporal Variation of Surface
Temperature on the Antarctic Peninsula and the Limit of Viability of Ice
Shelves, Antarct. Res. Ser., 79, 61–68, https://doi.org/10.1029/AR079p0061, 2003.
Mulvaney, R., Abram, N. J., Hindmarsh, R. C. A., Arrowsmith, C., Fleet, L.,
Triest, J., Sime, L. C., Alemany, O., and Foord, S.: Recent Antarctic
Peninsula warming relative to Holocene climate and ice-shelf history,
Nature, 489, 141–144, https://doi.org/10.1038/nature11391, 2012.
Polashenski, C., Golden, K. M., Perovich, D. K., Skyllingstad, E., Arnsten,
A., Stwertka, C., and Wright, N.: Percolation blockage: A process that
enables melt pond formation on first year Arctic sea ice, J. Geophys. Res.-Oceans, 122, 413–440, https://doi.org/10.1002/2016JC011994, 2017.
Pollard, D., DeConto, R. M., and Alley, R. B.: Potential Antarctic Ice Sheet
retreat driven by hydrofracturing and ice cliff failure, Earth Planet. Sci.
Lett., 412, 112–121, https://doi.org/10.1016/j.epsl.2014.12.035, 2015.
Pritchard, H. D., Ligtenberg, S. R. M., Fricker, H. A., Vaughan, D. G., Van
Den Broeke, M. R., and Padman, L.: Antarctic ice-sheet loss driven by basal
melting of ice shelves, Nature, 484, 502–505,
https://doi.org/10.1038/nature10968, 2012.
Qiao, G., Li, Y., Guo, S., and Ye, W.: Evolving instability of the scar inlet
ice shelf based on sequential landsat images spanning 2005–2018, Remote
Sens., 12, 36, https://doi.org/10.3390/RS12010036, 2020.
Rack, W. and Rott, H.: Pattern of retreat and disintegration of the Larsen B
ice shelf, Antarctic Peninsula, Ann. Glaciol., 39, 505–510, https://www.cambridge.org/core (last access: 15 December 2021), 2004.
Rignot, E., Casassa, G., Gogineni, P.,
Krabill, W., Rivera, A., and Thomas, R.: Accelerated ice discharge from the
Antarctic Peninsula following the collapse of Larsen B ice shelf, Geophys.
Res. Lett., 31, L18401, https://doi.org/10.1029/2004GL020697, 2004.
Rignot, E., Jacobs, S., Mouginot, B., and Scheuchl, B.: Ice-Shelf Melting
Around Antarctica, Science, 341, 263–266, https://doi.org/10.1126/science.1237966, 2013.
Robel, A. A. and Banwell, A. F.: A Speed Limit on Ice Shelf Collapse Through
Hydrofracture, Geophys. Res. Lett., 46, 12092–12100,
https://doi.org/10.1029/2019GL084397, 2019.
Rott, H., Skvarca, P., and Nagler, T.: Rapid Collapse of Northern Larsen Ice Shelf, Antarctica, Science, 271, 788–792, 1996.
Rott, H., Rack, W., Nagler, T., and Skvarca,
P.: Climatically induced retreat and collapse of norther Larsen Ice Shelf,
Antarctic Peninsula, Ann. Glaciol., 27, 86–92,
https://doi.org/10.3189/s0260305500017262, 1998.
Sandhäger, H., Rack, W., and Jansen, D.: Model investigations of Larsen B
Ice Shelf dynamics prior to the breakup, https://www.researchgate.net/publication/241354171_Model_investigations_of_Larsen_B_Ice_Shelf_dynamics_prior_to_the_breakup (last access: 29 January 2022), 2005.
Scambos, T., Hulbe, C., and Fahnestock, M.: Climate-Induced Ice Shelf
Disintegration in the Antarctic Peninsula, Antarct. Res. Ser., 79, 79–92, https://doi.org/10.1029/AR079p0079, 2003.
Scambos, T. A., Hulbe, C., Fahnestock, M., and Bohlander, J.: The link
between climate warming and break-up of ice shelves in the Antarctic
Peninsula, J. Glaciol., 46, 516–530, https://doi.org/10.3189/172756500781833043,
2000.
Scambos, T. A., Bohlander, J. A., Shuman, C. A., and Skvarca, P.: Glacier
acceleration and thinning after ice shelf collapse in the Larsen B
embayment, Antarctica, Geophys. Res. Lett., 31, L18402,
https://doi.org/10.1029/2004GL020670, 2004.
Schodlok, M. P., Menemenlis, D., and Rignot, E. J.: Ice shelf basal melt
rates around Antarctica from simulations and observations, J. Geophys. Res.-Oceans, 121, 1085–1109, https://doi.org/10.1002/2015JC011117, 2016.
Stroeve, J. and Shuman, C.: Historical Arctic and Antarctic Surface Observational Data, Version 1, NASA National Snow and Ice Data Center Distributed Active Archive Center, Boulder, Colorado USA [data set], https://doi.org/10.5067/4DIN375AWFIO, 2004.
Trusel, L. D., Frey, K. E., Das, S. B., Munneke, P. K., and Van Den Broeke,
M. R.: Satellite-based estimates of Antarctic surface meltwater fluxes,
Geophys. Res. Lett., 40, 6148–6153, https://doi.org/10.1002/2013GL058138, 2013.
Trusel, L. D., Frey, K. E., Das, S. B., Karnauskas, K. B., Kuipers Munneke,
P., Van Meijgaard, E., and Van Den Broeke, M. R.: Divergent trajectories of
Antarctic surface melt under two twenty-first-century climate scenarios,
Nat. Geosci., 8, 927–932, https://doi.org/10.1038/ngeo2563, 2015.
Turton, J. V., Kirchgaessner, A., Ross, A. N., and King, J. C.: Does
high-resolution modeling improve the spatial analysis of föhn flow over
the Larsen C Ice Shelf?, Weather, 72, 192–196, https://doi.org/10.1002/wea.3028, 2017.
Turton, J. V., Kirchgaessner, A., Ross, A. N., and King, J. C.: The spatial
distribution and temporal variability of föhn winds over the Larsen C
ice shelf, Antarctica, Q. J. Roy. Meteor. Soc., 144, 1169–1178, https://doi.org/10.1002/qj.3284, 2018.
van den Broeke, M.: Strong surface melting preceded collapse of Antarctic
Peninsula ice shelf, Geophys. Res. Lett., 32, L12815,
https://doi.org/10.1029/2005GL023247, 2005.
Van Wessem, J. M. and Laffin, M. K.: Regional Atmospheric Climate Model 2 (RACMO2), version 2.3p2 (2.3p2), Zenodo [data set], https://doi.org/10.5281/zenodo.3677642, 2020.
Wang, W., Zender, C. S., van As, D., Fausto, R. S., and Laffin, M. K.:
Greenland Surface Melt Dominated by Solar and Sensible Heating, Geophys.
Res. Lett., 48, e2020GL090653, https://doi.org/10.1029/2020GL090653, 2021.
Wang, X., Zhang, Z., Wang, X., Vihma, T., Zhou, M., Yu, L., Uotila, P., and
Sein, D. V.: Impacts of strong wind events on sea ice and water mass
properties in Antarctic coastal polynyas, Clim. Dynam., 57,
3505–3528, https://doi.org/10.1007/s00382-021-05878-7, 2021.
Wiesenekker, J. M., Munneke, P. K., van den Broeke, M. R., and Paul Smeets,
C. J. P.: A multidecadal analysis of Föhn winds over Larsen C ice shelf
from a combination of observations and modeling, Atmosphere, 9, 172,
https://doi.org/10.3390/atmos9050172, 2018.
Zheng, F., Li, J., Clark, R. T., and Nnamchi, H. C.: Simulation and
projection of the Southern Hemisphere annular mode in CMIP5 models, J.
Climate, 26, 9860–9879, https://doi.org/10.1175/JCLI-D-13-00204.1, 2013.
Short summary
The collapses of the Larsen A and B ice shelves on the Antarctic Peninsula (AP) occurred while the ice shelves were covered with large melt lakes, and ocean waves damaged the ice shelf fronts, triggering collapse. Observations show föhn winds were present on both ice shelves and increased surface melt and drove sea ice away from the ice front. Collapsed ice shelves experienced enhanced surface melt driven by föhn winds, whereas extant ice shelves are affected less by föhn-wind-induced melt.
The collapses of the Larsen A and B ice shelves on the Antarctic Peninsula (AP) occurred while...
