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Tollenaar, Veronica (author), Zekollari, Harry (author), Pattyn, Frank (author), Rußwurm, Marc (author), Kellenberger, Benjamin (author), Lhermitte, S.L.M. (author), Izeboud, M. (author), Tuia, Devis (author)
In some areas of Antarctica, blue-colored bare ice is exposed at the surface. These blue ice areas (BIAs) can trap meteorites or old ice and are vital for understanding the climatic history. By combining multi-sensor remote sensing data (MODIS, RADARSAT-2, and TanDEM-X) in a deep learning framework, we map blue ice across the continent at 200...
journal article 2024
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Otosaka, I.N. (author), Shepherd, Andrew (author), Ivins, Erik R. (author), Schlegel, Nicole-Jeanne (author), Amory, Charles (author), Simon, K.M. (author), Schrama, Ernst (author), van der Wal, W. (author), Wouters, B. (author)
Ice losses from the Greenland and Antarctic ice sheets have accelerated since the 1990s, accounting for a significant increase in the global mean sea level. Here, we present a new 29-year record of ice sheet mass balance from 1992 to 2020 from the Ice Sheet Mass Balance Inter-comparison Exercise (IMBIE). We compare and combine 50 independent...
journal article 2023
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Nicu, Ionut Cristi (author), Fatorić, Sandra (author)
Over the past decade, research on the impacts of climate change on immovable cultural heritage (ICH) in the polar regions (Arctic and Antarctica) has slowly increased. This article offers a systematic review and synthesis of the publications about climate change impacts on the diverse ICH and climate change adaptation in the polar regions....
journal article 2023
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Chatterjee, Subham (author), Das, Supriyo Kumar (author), Behera, Pravat Kumar (author), Ghosh, D. (author), Chakraborty, Arindam (author), Patel, Priyank Pravin (author), Ikehara, Minoru (author)
Variation in leaf colour (green, red and grey) of mosses and lake benthic mats in Antarctica is often linked to water stress and ultraviolet light (UV-B) exposure. Changes in the abundance of organic compounds, such as pectin and phenols, are associated with mechanisms protecting against desiccation and UV radiation. However, the function of...
journal article 2023
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de Roda Husman, S. (author), Lhermitte, S.L.M. (author), Bolibar, J. (author), Izeboud, M. (author), Hu, Zhongyang (author), Shukla, S. (author), van der Meer, Marijn (author), Long, David (author), Wouters, B. (author)
While the influence of surface melt on Antarctic ice shelf stability can be large, the duration and affected area of melt events are often small. Therefore, melt events are difficult to capture with remote sensing, as satellite sensors always face the trade-off between spatial and temporal resolution. To overcome this limitation, we developed...
journal article 2023
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de Roda Husman, S. (author), Hu, Zhongyang (author), Wouters, B. (author), Munneke, Peter Kuipers (author), Veldhuijsen, Sanne (author), Lhermitte, S.L.M. (author)
Surface melt is an important driver of ice shelf disintegration and its consequent mass loss over the Antarctic Ice Sheet. Monitoring surface melt using satellite remote sensing can enhance our understanding of ice shelf stability. However, the sensors do not measure the actual physical process of surface melt, but rather observe the presence...
journal article 2022
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Hu, Zhongyang (author), Kuipers Munneke, Peter (author), Lhermitte, S.L.M. (author), Dirscherl, Mariel (author), Ji, Chaonan (author), van den Broeke, Michiel (author)
Antarctic blue ice areas are exposed due to erosion and sublimation of snow. At the same time, surface melt can form surface types that are spectrally similar to blue ice, especially at low elevations. These are termed melt-induced blue ice areas. Both types of blue ice are sensitive indicators of climate change. Satellite remote sensing is a...
journal article 2022
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Dahle, F. (author), Tanke, Julian (author), Wouters, B. (author), Lindenbergh, R.C. (author)
A huge archive of historical images of the Antarctica taken by the US Navy between 1940 and 2000 is publicly available. These images have not yet been used for large-scale computer-driven analysis as they were captured with analog cameras. They were only later digitized and contain no semantic information. Most modern deep-learning based...
journal article 2022
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Larour, E. (author), Rignot, E. (author), Poinelli, M. (author), Scheuchl, B. (author)
The sudden propagation of a major preexisting rift (full-thickness crack) in late 2016 on the Larsen C Ice Shelf, Antarctica led to the calving of tabular iceberg A68 in July 2017, one of the largest icebergs on record, posing a threat for the stability of the remaining ice shelf. As with other ice shelves, the physical processes that led to...
journal article 2021
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Willen, M.O. (author), Broerse, D.B.T. (author), Groh, A. (author), Wouters, B. (author), Kuipers Munneke, P. (author), Horwath, M. (author), van den Broeke, M.R. (author), Schröder, L. (author)
Satellite gravimetry and altimetry measurements record gravity and elevation changes, respectively, which are useful for determining mass and volume change of the Antarctic Ice Sheet. Common methods employ products from regional climate modeling and firn modeling to aid interpretation and to link volume changes to mass changes. Estimating...
journal article 2021
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Fricker, Helen Amanda (author), Arndt, Philipp (author), Brunt, Kelly M. (author), Datta, Rajashree Tri (author), Fair, Zachary (author), Jasinski, Michael F. (author), Kingslake, Jonathan (author), Magruder, Lori A. (author), Wouters, B. (author)
Surface melting occurs during summer on the Antarctic and Greenland ice sheets, but the volume of stored surface meltwater has been difficult to quantify due to a lack of accurate depth estimates. NASA's ICESat-2 laser altimeter brings a new capability: photons penetrate water and are reflected from both the water and the underlying ice; the...
journal article 2021
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van der Linden, S.J.A. (author)
Stable boundary layers (SBLs) are a common aspect of the earth’s atmosphere and are characterized by a stable density stratification in which the temperature increases with height. This typically occurs during the night, resulting in a short-lived stable boundary layer, or persistently throughout the polar winter, resulting in a longlived stable...
doctoral thesis 2020
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Lhermitte, S.L.M. (author), Sun, Sainan (author), Shuman, Christopher (author), Wouters, B. (author), Pattyn, Frank (author), Wuite, Jan (author), Berthier, Etienne (author), Nagler, Thomas (author)
Pine Island Glacier and Thwaites Glacier in the Amundsen Sea Embayment are among the fastest changing outlet glaciers in West Antarctica with large consequences for global sea level. Yet, assessing how much and how fast both glaciers will weaken if these changes continue remains a major uncertainty as many of the processes that control their...
journal article 2020
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Couvreux, Fleur (author), Bazile, Eric (author), Rodier, Quentin (author), Maronga, Björn (author), Matheou, Georgios (author), Chinita, Maria J. (author), Edwards, John (author), van Stratum, Bart J.H. (author), van Heerwaarden, Chiel C. (author), Huang, Jing (author), Moene, Arnold F. (author), Cheng, Anning (author), Fuka, Vladimir (author), Basu, S. (author), Bou-Zeid, Elie (author), Canut, Guylaine (author), Vignon, Etienne (author)
In polar regions, where the boundary layer is often stably stratified, atmospheric models produce large biases depending on the boundary-layer parametrizations and the parametrization of the exchange of energy at the surface. This model intercomparison focuses on the very stable stratification encountered over the Antarctic Plateau in 2009. Here...
journal article 2020
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Verschuur, Jasper (author), Le Bars, Dewi (author), Katsman, C.A. (author), de Vries, S. (author), Ranasinghe, Roshanka (author), Drijfhout, Sybren S. (author), Aarninkhof, S.G.J. (author)
Sea-level rise (SLR) can amplify the episodic erosion from storms and drive chronic erosion on sandy shorelines, threatening many coastal communities. One of the major uncertainties in SLR projections is the potential rapid disintegration of large fractions of the Antarctic ice sheet (AIS). Quantifying this uncertainty is essential to support...
journal article 2020
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Gossart, Alexandra (author), Palm, Stephen P. (author), Souverijns, Niels (author), Lenaerts, Jan T.M. (author), Gorodetskaya, Irina V. (author), Lhermitte, S.L.M. (author), van Lipzig, Nicole P.M. (author)
Continuous measurements of blowing snow are scarce, both in time and space. Satellites now provide the opportunity to derive blowing snow occurrences, transport and sublimation rates over Antarctica. These products are extremely valuable and offer a continental-wide assessment of blowing snow, which is an important but unknown component of...
journal article 2020
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Pappa, F. (author), Ebbing, J. (author), Ferraccioli, F. (author), van der Wal, W. (author)
In this study we combine seismological and petrological models with satellite gravity gradient data to obtain the thermal and compositional structure of the Antarctic lithosphere. Our results indicate that Antarctica is largely in isostatic equilibrium, although notable anomalies exist. A new Antarctic Moho depth map is derived that fits the...
journal article 2019
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Lenaerts, J.T.M. (author), Medley, Brooke (author), van den Broeke, Michiel R. (author), Wouters, B. (author)
Surface mass balance (SMB) provides mass input to the surface of the Antarctic and Greenland Ice Sheets and therefore comprises an important control on ice sheet mass balance and resulting contribution to global sea level change. As ice sheet SMB varies highly across multiple scales of space (meters to hundreds of kilometers) and time (hourly...
journal article 2019
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Groh, Andreas (author), Horwath, Martin (author), Horvath, Alexander (author), Meister, Rakia (author), Wouters, B. (author), Ditmar, P.G. (author), Ran, J. (author), Klees, R. (author), Schrama, Ernst (author)
Satellite gravimetry data acquired by the Gravity Recovery and Climate Experiment (GRACE) allows to derive the temporal evolution in ice mass for both the Antarctic Ice Sheet (AIS) and the Greenland Ice Sheet (GIS). Various algorithms have been used in a wide range of studies to generate Gravimetric Mass Balance (GMB) products. Results from...
journal article 2019
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Bamber, Jonathan L. (author), Oppenheimer, Michael (author), Kopp, Robert E. (author), Aspinall, Willy P. (author), Cooke, R.M. (author)
Despite considerable advances in process understanding, numerical modeling, and the observational record of ice sheet contributions to global mean sea-level rise (SLR) since the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change, severe limitations remain in the predictive capability of ice sheet models. As a...
journal article 2019
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