PROMICE | GC-NET automatic weather station data Robert S. Fausto, Penelope How, Baptiste Vandecrux, Mads C. Lund, Jason E. Box, Kenneth D. Mankoff, Signe B. Andersen, Dirk van As, Rasmus Bahbah, Michele Citterio, William Colgan, Henrik T. Jakobsgaard, Nanna B. Karlsson, Kristian K. Kjeldsen, Signe H. Larsen, Charlotte Olsen, Falk M. Oraschewski, Anja Rutishauser, Christopher L. Shields, Anne M. Solgaard, Ian T. Stevens, Synne H. Svendsen, Kirsty Langley, Alexandra Messerli, Anders A. Bjørk, Jonas K. Andersen, Jakob Abermann, Jakob Steiner, Rainer Prinz, Berhard Hynek, James M. Lea, Stephen Brough, Andreas P. Ahlstrøm Earth System Science Data, 2026 We present a new version of the PROMICE | GC-NET automatic weather station (AWS) data product, combining observations from two Greenland AWS networks; PROMICE and GC-NET. As of late 2025, the dataset integrates records from 52 active and historical AWS sites across the Greenland Ice Sheet, peripheral glaciers and land areas. This new version includes improvements in station design, sensor configuration, and data processing. Two primary station types are used: dual-boom masts in the accumulation area, and free-standing tripods with a single instrument boom in the ablation area. Data are processed with pypromice, an open-source Python package designed for standardized, transparent, and reproducible workflows, including calibration, filtering, variable derivation, and correction. The resulting products are distributed in CF-compliant NetCDF and CSV formats and include both measured and derived variables for applications in polar meteorology, climatology, and glaciology. Access is open under license CC-BY 4.0. A GitHub-based issue tracker (https://github.com/GEUS-Glaciology-and-Climate/PROMICE-AWS-data-issues, last access: 12 November 2025) supports community-driven quality control within a living data framework. The datasets are openly available at https://doi.org/10.22008/FK2/IW73UU (How et al., 2022a).
Accelerating High Mountain Asia Glacier Loss From ICESat and ICESat-2 Javed Hassan, William Colgan, Karina Nielsen, Rijan Bhakta Kayastha, Mira Khadka, Shfaqat Abbas Khan IEEE Transactions on Geoscience and Remote Sensing, 2026 Communities dependent on snow and ice melt need to face escalating challenges due to glacier depletion, particularly in High Mountain Asia (HMA). Understanding glacier changes is thus crucial for addressing these impacts. Employing Ice, Cloud, and land Elevation Satellite (ICESat) and ICESat-2, we estimate glacier mass balance from 2003 to 2023 using three independent geodetic methods to reduce methodological biases. We find an acceleration in ice loss from <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$27.48~\pm ~7.96$ </tex-math></inline-formula> Gt a−1 (2003–2009) to <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$36.58~\pm ~8.08$ </tex-math></inline-formula> Gt a−1 (2018–2023). Mass loss is now evident at all elevations in several HMA regions, with few exceptions above 6000 m a.s.l. Climate data indicate that increased warming and reduced precipitation have intensified mass loss in recent years. These findings highlight a transition toward a widespread negative mass balance in the region. Increased glacier melt elevates the risk of seasonal water security and glacial hazards across HMA.
Community heat flow recommendations: suitable basal boundary conditions for Greenland and Antarctica in ISMIP7 Mareen Lösing, William Colgan, Tobias Stål, Jörg Ebbing, Anne G. Busck, Tong Zhang, Hélène L. Seroussi, Felicity McCormack, Dominik Fahrner, Leigh Stearns, Synne H. Svendsen, Anya Reading Geus Bulletin, 2026 Geothermal heat flow (GHF) influences ice sheet thermal conditions, affecting ice flow by sliding and deformation. However, GHF distribution under polar ice sheets remains poorly constrained, with few direct borehole-derived estimates and large discrepancies between glaciological and geophysical models caused by methodological differences and data limitations. As a result, many ice sheet models rely on uniform GHF estimates, ensemble averages or outdated fields that oversimplify reality. The choice of GHF product can lead to significantly different thermal conditions simulated at the ice-bed interface, which affects the projected evolution of ice sheets under climate warming. Therefore, we conducted an expert elicitation survey to identify the most suitable GHF fields for use as basal boundary conditions in ice sheet modelling, particularly for the Ice Sheet Modelling Intercomparison Project for CMIP7 (ISMIP7). GHF fields generally fall into three categories: (1) outdated due to improved data availability, (2) overly simplified parameterisations and (3) current and preferred. For GHF fields that rank highly in the survey, we discuss uncertainty and data dependency and guide their use in different applications. Finally, we recommend two Antarctic and one Greenlandic GHF fields for ISMIP7.
Review of Greenland’s thermal springs Eva Bendix Nielsen, William Colgan, Majken Djurhuus Poulsen, Kristian Svennevig, Diogo Rosa, Karl Brix Zinglersen, Kristian Scoresby Hammeken, Árni Hjartarson, Grimur Bjornsson, Ylva Sjöberg, Jon Feilberg, Reinhardt Møbjerg Kristensen, Kirsten Seestern Christoffersen, Melisa Larsen Platson, Søren Rysgaard, Michael Kühl Geus Bulletin, 2026 Thermal springs are a rare but diverse feature of Greenland’s ice-free margins, with temperatures ranging from near freezing to over 60 °C. Greenland’s thermal springs host distinctive biological communities, from thermophilic microbial mats to unique vascular plant assemblages, representing important Arctic biodiversity hotspots. They hold cultural, ecological, and scientific importance, yet records are mostly scattered across historical literature, local knowledge, and isolated field reports. Here, we present the first comprehensive review and quality-controlled geodatabase of Greenland’s thermal springs, compiled from more than a century of scientific and historical sources, botanical surveys, Greenlandic placenames, satellite imagery, and field observations. The present database contains entries for 382 individual spring localities, providing names, coordinates, geological setting, thermal characteristics, and metadata on source reliability. We describe their geographic distribution, geological setting, and possible heat sources, which include radiogenic decay, residual magmatic heat, and exothermic chemical weathering. Besides a lack of recent visits and photo documentation of many thermal springs, this synthesis highlights substantial gaps in temperature, chemistry, and discharge measurements, underlining the need for systematic sampling and community-based monitoring. The open access database offers a foundation for future interdisciplinary research, supports conservation planning, and provides a baseline for assessing climate-driven changes in Greenland’s geothermal systems. Eqikkaaneq Puilasut kissartut Kalaallit Nunaata sermersuaqanngitsuani qaqutigoortuupput kisianni assigiinngisitaarlutik, qerisinnaanngajatsuniit 60°C-t sinnerlugit kissassusilinnut. Kalaallit Nunaanni puilasut kissartut immikkuullarissunik pinngortitap uumassusililernerinik assigiinngitsorpassuarnik peqarput kissartumi tappiorannartuniit naasunut tunngasunut pisunit, issittumilu uumassusilinnut pingaaruteqarluinnartumik inissisimasuullutik. Taakku kulturikkut, pinngortitami pissuseqatigiinnikkut ilisimatusarnikkullu pingaaruteqarluinnarput, taamaattorli oqaluttuarisaanermi atuakkiani sumiiffinni ilisimatusarnermik aammalu immikkoortunik misissuinerni, inuiaqatigiit ilisimasaannik apersuinernit allattorsimaffiit siaruaqqasuullutik. Uani siullerpaamik tamakkiisumik saqqummiunneqarput misissuinerit pitsaasutsimillu nakkutigineqartumik geodatabase Kalaallit Nunaanni silaannaap pissusaanik misissuinerit, ukiuni untritilillit sinnerlugit ilisimatusarnerni oqaluttuarisaanermillu tunngaveqartunik, naasorsiuussutsikkut misissuinernit, kalaallisut nunat aqqinit, qaammataasiamit assilisanit aammalu nunami misissuinernit katersorneqarsimasut. Maannamut paasissutissaavimmi puilasut ataasiakkaat 382-usut pillugit allattorsimaffiit ilaatinneqarput, tassanilu aqqit, naleqqat (koordinaatit), geologiskimi inissisimanerit, kissassutsit pissusiannit naleqqussarnerit aammalu qularnaveeqquserneqarnerinnut metadata-t allaaserineqarlutik. Uani nassuiarneqarput nunap assinganik siammasissuseqarneri, geologiskimi inissisimaneri kiisalu kissassutsimik pilersitsisinnaanneri. Taakkulu ilagalugit radiogenimik aserorterneqarneri, magmateskimik kissassusiup sinneri kiisalu eksotermiskimik kemiimut tunngasunik aakkiartornerit. Puilasut kissartut amerlasuut qanittukkut tikinneqarsimannginneri kiisalu assinik uppernarsiisarnernik amigaateqarnerit saniatigut ataatsimoortillugit isiginiarneqarnerini pingaaruteqarpoq kissassutsinut, kemimik aammalu aniatitsinermik misissuinerni annertuumik amigaateqarnernik ersersitsinissaq, tassanimi ataqatigiissumik misissueqqisaarinissat kiisalu inuiaqatigiinnit nakkutiginninnerit pisariaqartinneqarmata. Avammut ammasumik paasissutissaaveqarnerup siunissami tunngaviusumik ilisimatusarnissamut neqeroorutigaa innarlernaveersaarnissaannut pilersaarusiornernut misissuieqqissaarineqarsinnaaneq.
Mass Loss of Greenland and Antarctic Peripheral Glaciers From ICESat and ICESat-2 Javed Hassan, Michiel R. van den Broeke, Sanne B. M. Veldhuijsen, William Colgan, Danjal Longfors Berg, Eigil Yuichi Hyldgaard Lippert, Shfaqat A. Khan Journal of Geophysical Research Earth Surface, 2025 Greenland and Antarctica's peripheral glaciers are an important but often overlooked element in the global sea‐level rise budget. Here, we use satellite laser altimetry from ICESat and ICESat‐2 to assess the mass loss from Greenland's and Antarctica's peripheral glaciers for three periods: February 2003 to October 2009, October 2009 to April 2018, and October 2018 to April 2023. Over these periods, Greenland's peripheral glacier mass loss has increased from 27.3 ± 7.9 Gt yr −1 during 2003–2009, to 35.8 ± 5.3 Gt yr −1 during 2018–2023. The ice loss from Antarctica's peripheral glaciers underwent a more complex change during this time, with a mass loss −4.2 ± 1.3 Gt yr −1 during 2003–2009, sharply rising to −16.0 ± 5.9 Gt yr −1 during 2009–2018, and subsequently declining to −9.0 ± 0.7 Gt yr −1 during 2018–2023. This temporal pattern of mass loss is observed across all Antarctic regions. Notably, the Antarctic Peninsula experienced a mass loss of 2.6 ± 3.1 Gt yr −1 during 2003–2009 followed by gains of 2.7 ± 3.8 Gt yr −1 and 11.9 ± 1.7 Gt yr −1 during 2009–2018 and 2018–2023, respectively. This shift toward mass gain during 2018–2023 can be attributed to exceptional levels of precipitation during the winters of 2019 and 2020. We conclude that increased snowfall played a crucial role in mitigating glacier mass loss during this later period. Overall, our findings show accelerating mass loss of Greenland and Antarctica's peripheral glaciers with complex variability, both spatially and temporally, with certain regions experiencing mass gains through increased snowfall.
Smoothed monthly Greenland ice sheet elevation changes during 2003–2023 Shfaqat A. Khan, Helene Seroussi, Mathieu Morlighem, William Colgan, Veit Helm, et al. Earth System Science Data, 2025 The surface elevation of the Greenland Ice Sheet is constantly changing due to the interplay between surface mass balance processes and ice dynamics, each exhibiting distinct spatiotemporal patterns. Here, we employ satellite and airborne altimetry data with fine spatial (1 km) and temporal (monthly) resolutions to document this spatiotemporal evolution from January 2003 to August 2023. To estimate elevation changes of the Greenland Ice Sheet (GIS), we utilize radar altimetry data from CryoSat-2 and EnviSat, laser altimetry data from the ICESat and ICESat-2, and laser altimetry data from NASA's Operation IceBridge Airborne Topographic Mapper. We produce continuous monthly ice surface elevation changes from January 2003 to August 2023 on a 1 km grid covering the entire GIS. We estimate cumulative ice loss of 4352 Gt ± 315 Gt (12.1±0.9 mm sea level equivalent) during this period, excluding peripheral glaciers. Between 2003 and 2023, the ice sheet land-terminating margin underwent a significant cumulative thinning of several meters. Ocean-terminating glaciers exhibited thinning between 20–40 m, with Jakobshavn Isbræ experiencing an exceptional thinning of nearly 70 m. This dataset of fine-resolution altimetry data in both space and time will support studies of ice mass loss and will be useful for GIS modeling. To validate our monthly mass changes of the Greenland ice sheet, we use mass change from satellite gravimetry and mass change from the input–output method. On multiannual timescales, there is a strong correlation between the time series, with R values ranging from 0.88 to 0.92 (https://doi.org/10.5061/dryad.s4mw6m9dh, Khan et al., 2025)
Community estimate of global glacier mass changes from 2000 to 2023 , Michael Zemp, Livia Jakob, Inés Dussaillant, Samuel U. Nussbaumer, Noel Gourmelen, Sophie Dubber, Geruo A, Sahra Abdullahi, Liss Marie Andreassen, Etienne Berthier, Atanu Bhattacharya, Alejandro Blazquez, Laura F. Boehm Vock, Tobias Bolch, Jason Box, Matthias H. Braun, Fanny Brun, Eric Cicero, William Colgan, Nicolas Eckert, Daniel Farinotti, Caitlyn Florentine, Dana Floricioiu, Alex Gardner, Christopher Harig, Javed Hassan, Romain Hugonnet, Matthias Huss, Tómas Jóhannesson, Chia-Chun Angela Liang, Chang-Qing Ke, Shfaqat Abbas Khan, Owen King, Marin Kneib, Lukas Krieger, Fabien Maussion, Enrico Mattea, Robert McNabb, Brian Menounos, Evan Miles, Geir Moholdt, Johan Nilsson, Finnur Pálsson, Julia Pfeffer, Livia Piermattei, Stephen Plummer, Andreas Richter, Ingo Sasgen, Lilian Schuster, Thorsten Seehaus, Xiaoyi Shen, Christian Sommer, Tyler Sutterley, Désirée Treichler, Isabella Velicogna, Bert Wouters, Harry Zekollari, Whyjay Zheng Nature, 2025 Glaciers are indicators of ongoing anthropogenic climate change1. Their melting leads to increased local geohazards2, and impacts marine3 and terrestrial4,5 ecosystems, regional freshwater resources6, and both global water and energy cycles7,8. Together with the Greenland and Antarctic ice sheets, glaciers are essential drivers of present9,10 and future11–13 sea-level rise. Previous assessments of global glacier mass changes have been hampered by spatial and temporal limitations and the heterogeneity of existing data series14–16. Here we show in an intercomparison exercise that glaciers worldwide lost 273 ± 16 gigatonnes in mass annually from 2000 to 2023, with an increase of 36 ± 10% from the first (2000–2011) to the second (2012–2023) half of the period. Since 2000, glaciers have lost between 2% and 39% of their ice regionally and about 5% globally. Glacier mass loss is about 18% larger than the loss from the Greenland Ice Sheet and more than twice that from the Antarctic Ice Sheet17. Our results arise from a scientific community effort to collect, homogenize, combine and analyse glacier mass changes from in situ and remote-sensing observations. Although our estimates are in agreement with findings from previous assessments14–16 at a global scale, we found some large regional deviations owing to systematic differences among observation methods. Our results provide a refined baseline for better understanding observational differences and for calibrating model ensembles12,16,18, which will help to narrow projection uncertainty for the twenty-first century11,12,18.
Ice acceleration and rotation in the Greenland Ice Sheet interior in recent decades Anja Løkkegaard, William Colgan, Karina Hansen, Kisser Thorsøe, Jakob Jakobsen, Shfaqat Abbas Khan Communications Earth and Environment, 2024 In the past two decades, mass loss from the Greenland ice sheet has accelerated, partly due to the speedup of glaciers. However, uncertainty in speed derived from satellite products hampers the detection of inland changes. In-situ measurements using stake surveys or GPS have lower uncertainties. To detect inland changes, we repeated in-situ measurements of ice-sheet surface velocities at 11 historical locations first measured in 1959, located upstream of Jakobshavn Isbræ, west Greenland. Here, we show ice velocities have increased by 5–15% across all deep inland sites. Several sites show a northward deflection of 3–4.5° in their flow azimuth. The recent appearance of a network of large transverse surface crevasses, bisecting historical overland traverse routes, may indicate a fundamental shift in local ice dynamics. We suggest that creep instability—a coincident warming and softening of near-bed ice layers—may explain recent acceleration and rotation, in the absence of an appreciable change in local driving stress.
Recent and future variability of the ice-sheet catchment of Sermeq Kujalleq (Jakobshavn Isbræ), Greenland Anja Løkkegaard, William Colgan, Andy Aschwanden, Shfaqat Abbas Khan Journal of Glaciology, 2024 Knowledge of ice-sheet catchments is critical for mass-balance assessments, especially glacier-scale input–output budgets. This study explores variations in the catchment of Sermeq Kujalleq, or Jakobshavn Isbrø, Greenland. Six observation-based catchment delineations are evaluated along with a 16-member catchment ensemble calculated from ice-sheet models within the Ice Sheet Model Intercomparison Project for CMIP6 (ISMIP6). The ‘present-day’ ISMIP6 ensemble mean area was found to be $\\sim 6.3\\%$ larger than the mean of the observed catchments. Ensemble spreads were comparable in size, $\\pm 12.3\\%$ and $\\pm 15.4\\%$ , suggesting models are able to delineate the present-day catchment with the same degree of uncertainty as observational methods. The mean catchment area of a 13-member ISMIP6 ensemble shows temporal variation, increasing $\\sim [ 2.7,\\; \\, 5.7,\\; \\, 9.1] \\%$ under three ocean forcing scenarios and a RCP8.5 projection based on one GCM from 2015 to 2100, primarily as the southern catchment boundary migrates southward. This is interpreted as Sermeq Kujalleq exhibiting dynamic piracy, re-directing ice away from adjacent land terminating glaciers. For mass-balance assessments, present-day catchment delineation is more important than capturing the temporal evolution of individual catchments. However, the modeled temporal changes in catchment area are potentially underestimated, as the models exhibit insufficient acceleration of inland ice flow.
Projections of Peak Water Timing From the East Rongbuk Glacier, Mt. Everest, Using a Higher-Order Ice Flow Model Tong Zhang, Yuzhe Wang, Wei Leng, Hongyu Zhao, Willliam Colgan, Che Wang, Minghu Ding, Weijun Sun, Wei Yang, Xin Li, Jiawen Ren, Cunde Xiao Earth S Future, 2024 In this study, we apply a three‐dimensional (3D) thermomechanically coupled higher‐order ice flow model to simulate the East Rongbuk Glacier (ERG), Mt. Everest. We first diagnostically investigate its present‐day ice dynamic features in 2009 and then prognostically simulate the glacier during the time period 2010–2100. The ice flow model is initialized based on a Robin‐type inversion method by conducting six sensitivity experiments relating to glacier thermal boundary conditions. We apply two different surface mass balance parameterizations in the model, and both of them can reproduce the observed ice volume loss (around 0.1 km3) during 2010–2020. We find that ERG is likely to experience maximum meltwater runoff at the year 2030 under the SSP‐126 scenario, while under SSP‐370 and ‐585 scenarios, the peak water will both likely occur at around 2060. The ice dynamics may contribute more to ice loss as climate warms in time.
The historical Greenland Climate Network (GC-Net) curated and augmented level-1 dataset Baptiste Vandecrux, Jason E. Box, Andreas P. Ahlstrøm, Signe B. Andersen, Nicolas Bayou, William T. Colgan, Nicolas J. Cullen, Robert S. Fausto, Dominik Haas-Artho, Achim Heilig, Derek A. Houtz, Penelope How, Ionut Iosifescu Enescu, Nanna B. Karlsson, Rebecca Kurup Buchholz, Kenneth D. Mankoff, Daniel McGrath, Noah P. Molotch, Bianca Perren, Maiken K. Revheim, Anja Rutishauser, Kevin Sampson, Martin Schneebeli, Sandy Starkweather, Simon Steffen, Jeff Weber, Patrick J. Wright, Henry Jay Zwally, Konrad Steffen Earth System Science Data, 2023
Greenland and Canadian Arctic ice temperature profiles database Anja Løkkegaard, Kenneth D. Mankoff, Christian Zdanowicz, Gary D. Clow, Martin P. Lüthi, Samuel H. Doyle, Henrik H. Thomsen, David Fisher, Joel Harper, Andy Aschwanden, Bo M. Vinther, Dorthe Dahl-Jensen, Harry Zekollari, Toby Meierbachtol, Ian McDowell, Neil Humphrey, Anne Solgaard, Nanna B. Karlsson, Shfaqat A. Khan, Benjamin Hills, Robert Law, Bryn Hubbard, Poul Christoffersen, Mylène Jacquemart, Julien Seguinot, Robert S. Fausto, William T. Colgan Cryosphere, 2023
Sixty years of ice form and flow at Camp Century, Greenland William Colgan, Jakob Jakobsen, Anne Solgaard, Anja Løkkegaard, Jakob Abermann, Shfaqat A. Khan, Beata Csatho, Joseph A. MacGregor, Robert S. Fausto, Nanna Karlsson, Allan Ø. Pedersen, Signe B. Andersen, John Sonntag, Christine S. Hvidberg, Andreas P. Ahlstrøm Journal of Glaciology, 2023
Design and performance of the Hotrod melt-tip ice-drilling system William Colgan, Christopher Shields, Pavel Talalay, Xiaopeng Fan, Austin P. Lines, Joshua Elliott, Harihar Rajaram, Kenneth Mankoff, Morten Jensen, Mira Backes, Yunchen Liu, Xianzhe Wei, Nanna B. Karlsson, Henrik Spanggård, Allan Ø. Pedersen Geoscientific Instrumentation Methods and Data Systems, 2023
Mass balance of the Greenland and Antarctic ice sheets from 1992 to 2020 Inès N. Otosaka, Andrew Shepherd, Erik R. Ivins, Nicole-Jeanne Schlegel, Charles Amory, Michiel R. van den Broeke, Martin Horwath, Ian Joughin, Michalea D. King, Gerhard Krinner, Sophie Nowicki, Anthony J. Payne, Eric Rignot, Ted Scambos, Karen M. Simon, Benjamin E. Smith, Louise S. Sørensen, Isabella Velicogna, Pippa L. Whitehouse, Geruo A, Cécile Agosta, Andreas P. Ahlstrøm, Alejandro Blazquez, William Colgan, Marcus E. 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, Christoph Kittel, Hannes Konrad, Peter L. Langen, Benoit S. Lecavalier, Chia-Chun Liang, Bryant D. Loomis, Malcolm McMillan, Daniele Melini, Sebastian H. Mernild, Ruth Mottram, Jeremie Mouginot, Johan Nilsson, Brice Noël, Mark E. Pattle, William R. Peltier, Nadege Pie, Mònica Roca, Ingo Sasgen, Himanshu V. Save, Ki-Weon Seo, Bernd Scheuchl, Ernst J. O. Schrama, Ludwig Schröder, Sebastian B. Simonsen, Thomas Slater, Giorgio Spada, Tyler C. Sutterley, Bramha Dutt Vishwakarma, Jan Melchior van Wessem, David Wiese, Wouter van der Wal, Bert Wouters Earth System Science Data, 2023
Greenland ice sheet climate disequilibrium and committed sea-level rise Jason E. Box, Alun Hubbard, David B. Bahr, William T. Colgan, Xavier Fettweis, Kenneth D. Mankoff, Adrien Wehrlé, Brice Noël, Michiel R. van den Broeke, Bert Wouters, Anders A. Bjørk, Robert S. Fausto Nature Climate Change, 2022
Greenland Geothermal Heat Flow Database and Map (Version 1) William Colgan, Agnes Wansing, Kenneth Mankoff, Mareen Lösing, John Hopper, Keith Louden, Jörg Ebbing, Flemming G. Christiansen, Thomas Ingeman-Nielsen, Lillemor Claesson Liljedahl, Joseph A. MacGregor, Árni Hjartarson, Stefan Bernstein, Nanna B. Karlsson, Sven Fuchs, Juha Hartikainen, Johan Liakka, Robert S. Fausto, Dorthe Dahl-Jensen, Anders Bjørk, Jens-Ove Naslund, Finn Mørk, Yasmina Martos, Niels Balling, Thomas Funck, Kristian K. Kjeldsen, Dorthe Petersen, Ulrik Gregersen, Gregers Dam, Tove Nielsen, Shfaqat A. Khan, Anja Løkkegaard Earth System Science Data, 2022
Greenland Mass Trends From Airborne and Satellite Altimetry During 2011–2020 Shfaqat A. Khan, Jonathan L. Bamber, Eric Rignot, Veit Helm, Andy Aschwanden, David M. Holland, Michiel Broeke, Michalea King, Brice Noël, Martin Truffer, Angelika Humbert, William Colgan, Saurabh Vijay, Peter Kuipers Munneke Journal of Geophysical Research Earth Surface, 2022
Glacier response to the Little Ice Age during the Neoglacial cooling in Greenland Kurt H. Kjær, Anders A. Bjørk, Kristian K. Kjeldsen, Eric S. Hansen, Camilla S. Andresen, Marie-Louise Siggaard-Andersen, Shfaqat A. Khan, Anne Sofie Søndergaard, William Colgan, Anders Schomacker, Sarah Woodroffe, Svend Funder, Alexandra Rouillard, Jens Fog Jensen, Nicolaj K. Larsen Earth Science Reviews, 2022
Sea-level rise in Denmark: paleo context, recent projections and policy implications William Colgan, Hans Jørgen Henriksen, Ole Bennike, Sofia Riberio, Marie Keiding, Ida Karlsson Seidenfaden, Morten Graversgaard, Anne Gravsholt Busck, Mikkel Fruergaard, Michael Helt Knudsen, John Hopper, Torben Sonnenborg, Maria Rebekka Skjerbæk, Anders Anker Bjørk, Holger Steffen, Lev Tarasov, R. Steven Nerem, Kristian K. Kjeldsen Geus Bulletin, 2022
A first constraint on basal melt-water production of the Greenland ice sheet Nanna B. Karlsson, Anne M. Solgaard, Kenneth D. Mankoff, Fabien Gillet-Chaulet, Joseph A. MacGregor, Jason E. Box, Michele Citterio, William T. Colgan, Signe H. Larsen, Kristian K. Kjeldsen, Niels J. Korsgaard, Douglas I. Benn, Ian J. Hewitt, Robert S. Fausto Nature Communications, 2021
Vulnerability of the North Water ecosystem to climate change Sofia Ribeiro, Audrey Limoges, Guillaume Massé, Kasper L. Johansen, William Colgan, Kaarina Weckström, Rebecca Jackson, Eleanor Georgiadis, Naja Mikkelsen, Antoon Kuijpers, Jesper Olsen, Steffen M. Olsen, Martin Nissen, Thorbjørn J. Andersen, Astrid Strunk, Sebastian Wetterich, Jari Syväranta, Andrew C. G. Henderson, Helen Mackay, Sami Taipale, Erik Jeppesen, Nicolaj K. Larsen, Xavier Crosta, Jacques Giraudeau, Simone Wengrat, Mark Nuttall, Bjarne Grønnow, Anders Mosbech, Thomas A. Davidson Nature Communications, 2021
Greenland ice sheet mass balance from 1840 through next week Kenneth D. Mankoff, Xavier Fettweis, Peter L. Langen, Martin Stendel, Kristian K. Kjeldsen, Nanna B. Karlsson, Brice Noël, Michiel R. van den Broeke, Anne Solgaard, William Colgan, Jason E. Box, Sebastian B. Simonsen, Michalea D. King, Andreas P. Ahlstrøm, Signe Bech Andersen, Robert S. Fausto Earth System Science Data, 2021
Programme for Monitoring of the Greenland Ice Sheet (PROMICE) automatic weather station data Robert S. Fausto, Dirk van As, Kenneth D. Mankoff, Baptiste Vandecrux, Michele Citterio, Andreas P. Ahlstrøm, Signe B. Andersen, William Colgan, Nanna B. Karlsson, Kristian K. Kjeldsen, Niels J. Korsgaard, Signe H. Larsen, Søren Nielsen, Allan Ø. Pedersen, Christopher L. Shields, Anne M. Solgaard, Jason E. Box Earth System Science Data, 2021
Centennial response of Greenland’s three largest outlet glaciers Shfaqat A. Khan, Anders A. Bjørk, Jonathan L. Bamber, Mathieu Morlighem, Michael Bevis, Kurt H. Kjær, Jérémie Mouginot, Anja Løkkegaard, David M. Holland, Andy Aschwanden, Bao Zhang, Veit Helm, Niels J. Korsgaard, William Colgan, Nicolaj K. Larsen, Lin Liu, Karina Hansen, Valentina Barletta, Trine S. Dahl-Jensen, Anne Sofie Søndergaard, Beata M. Csatho, Ingo Sasgen, Jason Box, Toni Schenk Nature Communications, 2020
Greenland liquid water discharge from 1958 through 2019 Kenneth D. Mankoff, Brice Noël, Xavier Fettweis, Andreas P. Ahlstrøm, William Colgan, Ken Kondo, Kirsty Langley, Shin Sugiyama, Dirk van As, Robert S. Fausto Earth System Science Data, 2020
Update of annual calving front lines for 47 marine terminating outlet glaciers in Greenland (1999-2018) Jonas K. Andersen, Robert S. Fausto, Karina Hansen, Jason E. Box, Signe B. Andersen, Andreas P. Ahlstrøm, Dirk Van As, Michele Citterio, William Colgan, Nanna B. Karlsson, Kristian K. Kjeldsen, Niels J. Korsgaard, Signe H. Larsen, Kenneth D. Mankoff, Allan Ø. Pedersen, Christopher L. Shields, Anne Solgaard, Baptiste Vandecrux Geological Survey of Denmark and Greenland Bulletin, 2019
Greenland ice sheet mass balance assessed by PROMICE (1995-2015) William Colgan, Kenneth D. Mankoff, Kristian K. Kjeldsen, Anders A. Bjørk, Jason E. Box, Sebastian B. Simonsen, Louise S. Sørensen, S. Abbas Khan, Anne M. Solgaard, Rene Forsberg, Henriette Skourup, Lars Stenseng, Steen S. Kristensen, Sine M. Hvidegaard, Michele Citterio, Nanna Karlsson, Xavier Fettweis, Andreas P. Ahlstrøm, Signe B. Andersen, Dirk Van As, Robert S. Fausto Geological Survey of Denmark and Greenland Bulletin, 2019
Greenland Ice Sheet solid ice discharge from 1986 through 2017 Kenneth D. Mankoff, William Colgan, Anne Solgaard, Nanna B. Karlsson, Andreas P. Ahlstrøm, Dirk van As, Jason E. Box, Shfaqat Abbas Khan, Kristian K. Kjeldsen, Jeremie Mouginot, Robert S. Fausto Earth System Science Data, 2019
Key indicators of Arctic climate change: 1971-2017 Jason E Box, William T Colgan, Torben Røjle Christensen, Niels Martin Schmidt, Magnus Lund, Frans-Jan W Parmentier, Ross Brown, Uma S Bhatt, Eugénie S Euskirchen, Vladimir E Romanovsky, John E Walsh, James E Overland, Muyin Wang, Robert W Corell, Walter N Meier, Bert Wouters, Sebastian Mernild, Johanna Mård, Janet Pawlak, Morten Skovgård Olsen Environmental Research Letters, 2019
Firn data compilation reveals widespread decrease of firn air content in western Greenland Baptiste Vandecrux, Michael MacFerrin, Horst Machguth, William T. Colgan, Dirk van As, Achim Heilig, C. Max Stevens, Charalampos Charalampidis, Robert S. Fausto, Elizabeth M. Morris, Ellen Mosley-Thompson, Lora Koenig, Lynn N. Montgomery, Clément Miège, Sebastian B. Simonsen, Thomas Ingeman-Nielsen, Jason E. Box Cryosphere, 2019
Circum-greenland, ice-thickness measurements collected during PROMICE airborne surveys in 2007, 2011 and 2015 Geological Survey of Denmark and Greenland Bulletin, 2018
The Greenland ice sheet – Snowline elevations at the end of the melt seasons from 2000 to 2017 Geological Survey of Denmark and Greenland Bulletin, 2018
Recent retreat of Columbia Glacier, Alaska: Millennial context Anders E. Carlson, Zoe Kilmer, Leah B. Ziegler, Joseph S. Stoner, Greg C. Wiles, Kaitlin Starr, Maureen H. Walczak, William Colgan, Alberto V. Reyes, David J. Leydet, Robert G. Hatfield Geology, 2017
Greenland surface mass-balance observations from the ice-sheet ablation area and local glaciers HORST MACHGUTH, HENRIK H. THOMSEN, ANKER WEIDICK, ANDREAS P. AHLSTRØM, JAKOB ABERMANN, MORTEN L. ANDERSEN, SIGNE B. ANDERSEN, ANDERS A. BJØRK, JASON E. BOX, ROGER J. BRAITHWAITE, CARL E. BØGGILD, MICHELE CITTERIO, POUL CLEMENT, WILLIAM COLGAN, ROBERT S. FAUSTO, KARIN GLEIE, STEFANIE GUBLER, BENT HASHOLT, BERNHARD HYNEK, NIELS T. KNUDSEN, SIGNE H. LARSEN, SEBASTIAN H. MERNILD, JOHANNES OERLEMANS, HANS OERTER, OLE B. OLESEN, C. J. P. PAUL SMEETS, KONRAD STEFFEN, MANFRED STOBER, SHIN SUGIYAMA, DIRK VAN AS, MICHIEL R. VAN DEN BROEKE, RODERIK S. W. VAN DE WAL Journal of Glaciology, 2016
A synthesis of the basal thermal state of the Greenland Ice Sheet Joseph A. MacGregor, Mark A. Fahnestock, Ginny A. Catania, Andy Aschwanden, Gary D. Clow, William T. Colgan, S. Prasad Gogineni, Mathieu Morlighem, Sophie M. J. Nowicki, John D. Paden, Stephen F. Price, Hélène Seroussi Journal of Geophysical Research Earth Surface, 2016
Spatial and temporal distribution of mass loss from the Greenland Ice Sheet since AD 1900 Kristian K. Kjeldsen, Niels J. Korsgaard, Anders A. Bjørk, Shfaqat A. Khan, Jason E. Box, Svend Funder, Nicolaj K. Larsen, Jonathan L. Bamber, William Colgan, Michiel van den Broeke, Marie-Louise Siggaard-Andersen, Christopher Nuth, Anders Schomacker, Camilla S. Andresen, Eske Willerslev, Kurt H. Kjær Nature, 2015
Darkening of the Greenland ice sheet due to the meltalbedo feedback observed at PROMICE weather stations Geological Survey of Denmark and Greenland Bulletin, 2013
