Impact of Subglacial Freshwater Discharge on Pine Island Ice Shelf
Impact of Subglacial Freshwater Discharge on Pine Island Ice Shelf
复制标题
冰下淡水排放对松岛冰架的影响
DOI:
10.1029/2021gl093923
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发表时间:
2021
影响因子:
5.2
通讯作者:
Seroussi Helene
中科院分区:
文献类型:
--
作者:
Nakayama Yoshihiro;Cai Cilan;Seroussi Helene
Satellite‐based estimates of ice shelf melt rates reach 200 m close to the grounding line of Pine Island Glacier, in West Antarctica. However, ocean simulations have not yet been able to reproduce such high melt rates, even with high‐resolution models. Here, we use a regional model of Pine Island ice shelf cavity and study the impact of subglacial freshwater discharge on simulated ice shelf melt rates and ocean circulation in the cavity. We show that subglacial freshwater discharge substantially enhances ice shelf melting close to the grounding line, successfully simulating high ice shelf melt rates suggested by observations. The buoyant mixture of glacial meltwater plume rises to 27.4 isopycnal surfaces, following topographically constrained current, and spreads into mid‐depths at the ice shelf front. The role of freshwater discharge is likely to remain unchanged over the coming decades given the projected evolution of runoff and rainfall over Pine Island basin.
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影响因子:
13.6
作者:
Wåhlin AK;Graham AGC;Hogan KA;Queste BY;Boehme L;Larter RD;Pettit EC;Wellner J;Heywood KJ
通讯作者:
Heywood KJ
DOI:
10.5194/tc-2018-209
发表时间:
2018
期刊:
The Cryosphere Discussions
影响因子:
--
作者:
Shean, David E.;Joughin, Ian R.;Dutrieux, Pierre;Smith, Benjamin E.;Berthier, Etienne
通讯作者:
Berthier, Etienne
影响因子:
18.3
作者:
Adusumilli S;Fricker HA;Medley B;Padman L;Siegfried MR
通讯作者:
Siegfried MR
影响因子:
3.6
作者:
Biddle, Louise C.;Loose, Brice;Heywood, Karen J.
通讯作者:
Heywood, Karen J.
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
N.Watanabe;et al.;梅原さおり
通讯作者:
梅原さおり