TY  - JOUR
A1  - Albrecht, Torsten
A1  - Levermann, Anders
T1  - Spontaneous ice-front retreat caused by disintegration of adjacent ice shelf in Antarctica
JF  - Earth & planetary science letters
N2  - Antarctic ice-discharge constitutes the largest uncertainty in future sea-level projections. Floating ice shelves, fringing most of Antarctica, exert retentive forces onto the ice flow. While abrupt ice-shelf retreat has been observed, it is generally considered a localized phenomenon. Here we show that the disintegration of an ice shelf may induce the spontaneous retreat of its neighbor. As an example, we reproduce the spontaneous but gradual retreat of the Larsen B ice front as observed after the disintegration of the adjacent Larsen A ice shelf. We show that the Larsen A collapse yields a change in spreading rate in Larsen B via their connecting ice channels and thereby causes a retreat of the ice front to its observed position of the year 2000, prior to its collapse. This mechanism might be particularly relevant for the role of East Antarctica and the Antarctic Peninsula in future sea level.
KW  - Antarctica
KW  - Larsen Ice Shelf
KW  - glaciology
KW  - numerical ice modeling
KW  - sea level
KW  - iceberg calving
Y1  - 2014
U6  - https://doi.org/10.1016/j.epsl.2014.02.034
SN  - 0012-821X
SN  - 1385-013X
VL  - 393
SP  - 26
EP  - 30
PB  - Elsevier
CY  - Amsterdam
ER  -