Floating ice-shelves resist upstream ice flow via lateral drag against fjord walls and pinning points; loss of buttressing (Larsen B 2002) accelerates grounded-ice discharge by 2 to 8x.
Floating ice-shelves resist upstream ice flow via lateral drag against fjord walls and pinning points; loss of buttressing (Larsen B 2002) accelerates grounded-ice discharge by 2 to 8x.