Summertime surface melt over sea ice was observed in situ by the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) on May 25, 2020. The melt was initiated by longwave radiative forcing from a warm, cloudy air mass advected from lower latitudes, similar to that observed in 1998 during the S...
Christopher J. Cox, A. Solomon, Michael S. Town et al.· Elem Sci Anth· 0 citations
Low-level winds over Antarctica are overwhelmingly controlled by the local orography. They, in turn, exert a large control over sea ice formation and transport. In this work, we investigate the relationship between Antarctic sea ice and the parameterized orographic gravity wave drag in the UK CMIP6 (Coupled Model Inter...
M. Guarino, Jeff K. Ridley, R. Farneti et al.· Climate Dynamics· 0 citations
Dense water formation in the Southern Ocean plays a key role in the global ocean overturning circulation, affecting the distribution of heat, carbon, oxygen, and nutrients. Fast ice stays immobile while blocking sea ice flow, favoring the opening of coastal polynyas, where intense air‐sea exchanges drive sea ice prod...
N. Pirlet, T. Fichefet, M. Vancoppenolle et al.· Journal of Geophysical Resea...· 0 citations
Ocean eddies are observed beneath Antarctic ice shelves, yet their role in regulating basal melting remains unclear. We use nonhydrostatic Large‐Eddy Simulations that resolve eddies and boundary‐layer turbulence to examine a baroclinically unstable salinity front that breaks into eddies. Anticyclones reorganize the den...
Wang-Peng Gui, Ankit Bhadouriya, Catherine A. Vreugdenhil et al.· Geophysical Research Letters· 0 citations
The Late Ordovician marks the first major continental ice sheet event in the Phanerozoic Eon, despite high CO
2
levels, coinciding with a dramatic global temperature drop and one of the largest mass extinctions. However, the critical role of ice sheet-climate feedbacks in driving the Late Ordovician glaciation rema...
Yu-Dong Sun, Yong-Gang Liu, Jia-Cheng Wu et al.· Climate of the Past· 0 citations
Turbidity currents are increasingly recognised as a key mechanism for transporting sediment into the deep ocean, yet their structure, behavior, and long‐term impact in Antarctic submarine canyons remain poorly understood owing to a lack of direct observations. Using a year‐long mooring deployed in Wilson Canyon, west...
C. Johannes, J. Hillman, P. Hosegood et al.· Journal of Geophysical Resea...· 0 citations
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