C023:
Monitoring and Modeling Snow on Sea Ice – From Grain Size to Global Climate Models





Session ID#: 23224

Session Description:
Depth and physical properties of snow dominate many processes and properties of Arctic and Antarctic sea ice. They are among the least known and most difficult to observe climate variables, mainly due to their high spatial and temporal variability and complex vertical structure. Active and passive microwave data, as well as laser and radar altimeter satellite observations, have recently been applied to retrieve snow depth over sea ice, but their accuracy and sensitivity needs to be better understood. Snow studies using atmospheric reanalysis products are hampered by large uncertainties and biases. Numerical simulations of snow processes, accumulation, and ablation from 1D micro scales to global circulation models reveal major challenges with strong impacts on atmosphere-ice-ocean interaction. In-situ, autonomous, and airborne observations of snow on sea ice are advancing and are expected to become more comprehensive. We welcome abstracts from these wide fields of snow on sea ice research.
Primary Convener:  Marcel Nicolaus, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany; Alfred Wegener Institute, Bremerhaven, Germany
Conveners:  Michel Tsamados1, Andrew Barrett2 and Julienne Stroeve1, (1)University College London, London, United Kingdom(2)National Snow and Ice Data Center, Boulder, CO, United States
Index Terms:

0736 Snow [CRYOSPHERE]
0750 Sea ice [CRYOSPHERE]
0770 Properties [CRYOSPHERE]
0772 Distribution [CRYOSPHERE]

Abstracts Submitted to this Session:

Vishnu Nandan, John Yackel, Torsten Geldsetzer and Mallik Mahmud, University of Calgary, Calgary, AB, Canada
Stefanie Arndt and Christian Haas, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany
Shurun Tan1, Jiyue Zhu1, Leung Tsang1 and Son V Nghiem2, (1)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (2)Jet Propulsion Laboratory, Pasadena, CA, United States
Nina Maaß1, Lars Kaleschke1, Nander Wever2, Michael Lehning3, Marcel Nicolaus4 and Hans Leonard Rossmann5, (1)University of Hamburg, Hamburg, Germany, (2)WSL Institute for Snow and Avalanche Research SLF, Davos Dorf, Switzerland, (3)CRYOS, School of Architecture, Civil and Environmental Engineering, EPFL, Lausanne, Switzerland, (4)Alfred Wegener Institute, Bremerhaven, Germany, (5)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany
Melinda Webster1, Alek Petty2, Linette Boisvert3 and Thorsten Markus1, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)Earth System Science Interdisciplinary Center, College Park, MD, United States, (3)Earth System Science Interdisciplinary Center, COLLEGE PARK, MD, United States
Linette Boisvert1, Melinda Webster2, Alek Petty3 and Thorsten Markus2, (1)Earth System Science Interdisciplinary Center, COLLEGE PARK, MD, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)Earth System Science Interdisciplinary Center, College Park, MD, United States
Isobel Lawrence1, Michel Tsamados2, Julienne Stroeve1, Thomas Armitage3 and Andy Ridout1, (1)University College London, London, United Kingdom, (2)UCL CPOM, London, United Kingdom, (3)Jet Propulsion Laboratory, Pasadena, CA, United States
Marcel Nicolaus, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, Sebastian Geland, Norwegian Polar Institute, Tromsø, Norway and Donald K Perovich, CRREL, Hanover, NH, United States
Glen E Liston, Colorado State University, Cooperative Institute for Research in the Atmosphere (CIRA), Fort Collins, CO, United States, Julienne Stroeve, National Snow and Ice Data Center, CIRES University of Colorado, Boulder, CO, United States, Andrew Barrett, National Snow and Ice Data Center, Boulder, CO, United States, Mark A Tschudi, University of Colorado at Boulder, CCAR, Boulder, CO, United States and Scott Stewart, Exploratory Thinking, Longmont, CO, United States
Chris Polashenski1,2, Nicholas Wright3, Glen E Liston4 and Cameron Planck3, (1)Thayer School of Engineering,Dartmouth College, Hanover, NH, United States, (2)U.S. Army Cold Regions Research and Engineering Laboratory, Ft Wainwright, AK, United States, (3)Dartmouth College, Hanover, NH, United States, (4)Colorado State University, Cooperative Institute for Research in the Atmosphere (CIRA), Fort Collins, CO, United States
Ioanna Merkouriadi1, Bin Cheng2, Robert M. Graham1, Anja Rösel1 and Mats A Granskog1, (1)Norwegian Polar Institute, Tromsø, Norway, (2)Finnish Meteorological Institute, Helsinki, Finland
Andrew P Barrett, National Snow and Ice Data Center, Boulder, CO, United States, Julienne Stroeve, University College London, London, United Kingdom, Glen E Liston, Colorado State University, Cooperative Institute for Research in the Atmosphere (CIRA), Fort Collins, CO, United States, Mark A Tschudi, University of Colorado at Boulder, CCAR, Boulder, CO, United States and Scott Stewart, Exploratory Thinking, Longmont, CO, United States
Paul Donchenko, University of Waterloo, Geography, Waterloo, ON, Canada, Richard E J Kelly, University of Waterloo, Geography and Environmental Management, Waterloo, ON, Canada and Joshua M King, Environment Canada, Toronto, ON, Canada

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