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Christian Clauwers

Christian Clauwers
arabnews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from arabnews.com Daily Mail and Mail on Sunday newspapers.

Ross Sea , Marie Byrd Land ,

Studying the Antarctic is critical for mapping environmental change to biodiversity and climate

Studying the Antarctic is critical for mapping environmental change to biodiversity and climate
arabnews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from arabnews.com Daily Mail and Mail on Sunday newspapers.

King George Island , United States , Christian Clauwers , Ross Sea , University Of Colorado , Millennium Institute , Bellingshausen Russian Antarctic , King George , Marie Byrd Land , Southern Ocean , Subantarctic Ecosystems , Avian Influenza , Svalbard Global Seed Vault ,

Progressive unanchoring of Antarctic ice shelves since 1973

Mass loss of the Antarctic Ice Sheet has been driven primarily by the thinning of the floating ice shelves that fringe the ice sheet1, reducing their buttressing potential and causing land ice to accelerate into the ocean2. Observations of ice-shelf thickness change by satellite altimetry stretch back only to 1992 (refs. 1,3–5) and previous information about thinning remains unquantified. However, extending the record of ice-shelf thickness change is possible by proxy, by measuring the change in area of the surface expression of pinning points—local bathymetric highs on which ice shelves are anchored6. Here we measure pinning-point change over three epochs spanning the periods 1973–1989, 1989–2000 and 2000−2022, and thus by proxy infer changes to ice-shelf thickness back to 1973–1989. We show that only small localized pockets of ice shelves were thinning between 1973 and 1989, located primarily in the Amundsen Sea Embayment and the Wil ....

Amundsen Sea , Oceans General , Dronning Maud , Bellingshausen Sea , Weddell Sea , Moscow University , Us Geological , Moscow University Glacier , Moscow University Ice Shelf , Extended Data , Amundsen Sea Embayment , West Antarctica , East Antarctica , Antarctic Peninsula , Prince Gustav , Bawden Ice Rise , Supplementary Information , Amundsen Sea Sector , Pine Island Glacier , Getz Ice Shelf , Marie Byrd Land , Hull Glacier , Sulzberger Ice Shelf , Swinburne Ice Shelf , Ross Ice Shelf , Steershead Ice Rise ,