cad a22 4500 467973822 20181103044556.0 cr unu---uuuuu 170328s2004 xx s 000 0 eng 10.5167/uzh-136437 doi 10.1029/2004GL021284 doi (ZORA)oai:www.zora.uzh.ch:136437 910 ddc Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans [Elektronische Daten] [Antony J Payne, Andreas Vieli, Andrew P Shepherd, Duncan J Wingham, Eric Rignot] openAccess eu-repo A growing body of observational data suggests that PineIsland Glacier (PIG) is changing on decadal or shorter timescales. These changes may have far-reaching consequences for the future of the West Antarctic ice sheet (WAIS) and global sea levels because of PIG's role as the icesheet's primary drainage portal. We test the hypothesis that these changes are triggered by the adjoining ocean.Specifically, we employ an advanced numerical ice-flowmodel to simulate the effects of perturbations at the groundingline on PIG's dynamics. The speed at which these changes are propagated upstream implies a tight coupling between ice-sheet interior and surrounding ocean. Institute of Geography zora Payne Antony J. joint author Vieli Andreas joint author Shepherd Andrew P. joint author Wingham Duncan J. joint author Rignot Eric joint author Geophysical Research Letters 31(23):L23401 https://www.zora.uzh.ch/id/eprint/136437/1/2004_Payne_et_al-2004-Geophysical_Research_Letters.pdf text/html WWW-Backlink auf das Repository 1 Journal Article PeerReviewed zora ZORA 856 40 https://www.zora.uzh.ch/id/eprint/136437/1/2004_Payne_et_al-2004-Geophysical_Research_Letters.pdf text/html WWW-Backlink auf das Repository ZORA 700 1- Payne Antony J. joint author ZORA 700 1- Vieli Andreas joint author ZORA 700 1- Shepherd Andrew P. joint author ZORA 700 1- Wingham Duncan J. joint author ZORA 700 1- Rignot Eric joint author ZORA 773 0- Geophysical Research Letters 31(23):L23401 BK010053 XK010053 XK010000 ZORA ZORA ZORA Journal Article openAccess