RINGS White Paper on mapping Antarctic ice-sheet margins
The RINGS Action Group has published a White Paper on its collaborative international effort to map all Antarctic ice-sheet margins. The IPCC’s recent Special Report on Ocean and Cryosphere in a Changing Climate (SROCC) addresses a rapidly increasing sea‐level contribution from the Antarctic Ice Sheet. The lack of ice thickness data at the margin of the ice sheet (grounding zone) is highlighted as one of the main sources of uncertainty for accurate estimation of Antarctic ice discharge, and adds to discrepancies with other satellite‐based mass change estimates.
