Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084066 |
Impact of Iceberg Calving on the Retreat of Thwaites Glacier, West Antarctica Over the Next Century With Different Calving Laws and Ocean Thermal Forcing | |
Yu, Hongju1; Rignot, Eric1,2; Seroussi, Helene2; Morlighem, Mathieu1; Choi, Youngmin1 | |
2019-12-18 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA |
英文摘要 | Thwaites Glacier, West Antarctica, has been a major contributor to global sea level rise over the past decades. Prior studies illustrated the critical role of ice shelf melt and iceberg calving based on cliff height in driving the retreat of Thwaites glacier. Here, we simulate its evolution with various calving laws and rates of frontal melt by the ocean in the absence of a buttressing ice shelf. Over the next century, we find that volume losses increase by 15-160% with a von Mises calving law compared to the case where the initial ice shelf is kept and the ice front is fixed at its current position, 10-20% with a buoyancy-driven calving law, and 5-50% with frontal melt caused by ocean thermal forcing. Bed topography exerts the ultimate control on the evolution of Thwaites. In all simulations, once Thwaites Glacier retreats past the western subglacial ridge, the retreat becomes rapidly unstoppable. |
英文关键词 | Thwaites Glacier Calving Fracture Mass balance Southern Ocean Sea level rise |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000503125500001 |
WOS关键词 | AMUNDSEN SEA EMBAYMENT ; PINE ISLAND ; OUTLET GLACIERS ; ICE-SHEET ; TIDEWATER GLACIERS ; GREENLAND ; DYNAMICS ; FLOW ; WIDESPREAD ; DAMAGE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225217 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA; 2.CALTECH, Jet Prop Lab, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Yu, Hongju,Rignot, Eric,Seroussi, Helene,et al. Impact of Iceberg Calving on the Retreat of Thwaites Glacier, West Antarctica Over the Next Century With Different Calving Laws and Ocean Thermal Forcing[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Yu, Hongju,Rignot, Eric,Seroussi, Helene,Morlighem, Mathieu,&Choi, Youngmin.(2019).Impact of Iceberg Calving on the Retreat of Thwaites Glacier, West Antarctica Over the Next Century With Different Calving Laws and Ocean Thermal Forcing.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Yu, Hongju,et al."Impact of Iceberg Calving on the Retreat of Thwaites Glacier, West Antarctica Over the Next Century With Different Calving Laws and Ocean Thermal Forcing".GEOPHYSICAL RESEARCH LETTERS (2019). |
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