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1. Variations of the Antarctic Ice Sheet in a Coupled Ice Sheet-Earth-Sea Level Model: Sensitivity to Viscoelastic Earth Properties: Variations of the Antarctic Ice Sheet

   https://doi.org/10.1002/2017JF004371  

   Pollard, David ; Gomez, Natalya ; Deconto, Robert M. ( November 2017 , Journal of Geophysical Research: Earth Surface)
2. An Overview of Antarctic Sea Ice in the Community Earth System Model version 2, Part I: Analysis of the Seasonal Cycle in the Context of Sea Ice Thermodynamics and Coupled Atmosphere‐Ocean‐Ice Processes

   https://doi.org/10.1029/2020MS002143  

   Singh, Hansi K. ; Landrum, Laura ; Holland, Marika M. ; Bailey, David A. ; DuVivier, Alice K. ( January 2020 , Journal of Advances in Modeling Earth Systems)

   We assess Antarctic sea ice climatology and variability in version 2 of the Community Earth System Model (CESM2), and compare it to that in the older CESM1 and (where appropriate) real-world observations. In CESM2, Antarctic sea ice is thinner and less extensive than in CESM1, though sea ice area is still approximately 1 million km2 greater in CESM2 than in present-day observations. Though there is less Antarctic sea ice in CESM2, the annual cycle of ice growth and melt is more vigorous in CESM2 than in CESM1. A new mushy-layer thermodynamics formulation implemented in the latest version of the Community Ice Code (CICE) in CESM2 accounts for both greater frazil ice forma- tion in coastal polynyas and more snow-to-ice conversion near the edge of the ice pack in the new model. Greater winter ice divergence in CESM2 (relative to CESM1) is due to stronger stationary wave activity and greater wind stress curl over the ice pack. Greater wind stress curl, in turn, drives more warm water upwelling under the ice pack, thinning it and decreasing its extent. Overall, differences between Antarctic sea ice in CESM2 and CESM1 arise due to both differences in their sea ice thermodynamics formulations, and differencesmore »in their coupled atmosphere-ocean states.« less
3. Formation of sea ice ponds from ice-shelf runoff, adjacent to the McMurdo Ice Shelf, Antarctica

   https://doi.org/10.1017/aog.2020.9  

   Macdonald, Grant J. ; Popović, Predrag ; Mayer, David P. ( September 2020 , Annals of Glaciology)

   Abstract Ponds that form on sea ice can cause it to thin or break-up, which can promote calving from an adjacent ice shelf. Studies of sea ice ponds have predominantly focused on Arctic ponds formed by in situ melting/ponding. Our study documents another mechanism for the formation of sea ice ponds. Using Landsat 8 and Sentinel-2 images from the 2015–16 to 2018–19 austral summers, we analyze the evolution of sea ice ponds that form adjacent to the McMurdo Ice Shelf, Antarctica. We find that each summer, meltwater flows from the ice shelf onto the sea ice and forms large (up to 9 km 2 ) ponds. These ponds decrease the sea ice's albedo, thinning it. We suggest the added mass of runoff causes the ice to flex, potentially promoting sea-ice instability by the ice-shelf front. As surface melting on ice shelves increases, we suggest that ice-shelf surface hydrology will have a greater effect on sea-ice stability.
4. Behavior of flexural gravity waves on ice shelves: Application to the Ross Ice Shelf: ICE-SHELF/OCEAN-WAVE INTERACTIONS ON RIS

   https://doi.org/10.1002/2017JC012947  

   Sergienko, O. V. ( August 2017 , Journal of Geophysical Research: Oceans)
5. Slow-slip events on the Whillans Ice Plain, Antarctica, described using rate-and-state friction as an ice stream sliding law: SLOW SLIP ON THE WHILLANS ICE PLAIN

   https://doi.org/10.1002/2016JF004183  

   Lipovsky, Bradley Paul ; Dunham, Eric M. ( April 2017 , Journal of Geophysical Research: Earth Surface)