来源类型 | Projects
|
规范类型 | 研究项目
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| Vulnerability of the Antarctic Ice Sheet to a changing thermocline |
其他题名 | VAST
|
| Ricarda Winkelmann
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开始日期 | 2021-09-01
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结束日期 | 2023-02-28
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项目经费 | 143.600 €
|
资助机构 | DFG - Deutsche Forschungsgemeinschaft
|
摘要 |
We want to carry out an in-depth analysis of how the circum-antarctic thermocline depth depends on changes in wind speed and direction, putting their relation into functional form. Based on that, we aim to find critical wind-stress thresholds, indicating the regional potential of future warm-water intrusion into the different ice-shelf cavities around Antarctica. Further, we plan to implement this process of a wind-driven thermocline into a sophisticated, yet computationally efficient ice-sheet model. For the first time this will allow simulations of the flow dynamics of the entire AIS in response to basal ice-shelf melting that is sensitive to wind-driven thermocline changes. Conducting an ensemble of simulations, we plan to provide projections of the future Antarctic sea-level contribution, associated with projected regional changes in the atmosphere. In further sets of experiments, we intend to systematically vary the thermocline depth to conceptually explore the ice-sheets sensitivity to changes in larger-scale atmospheric variability, e.g., to changes in frequency, amplitude and trend of recurring El-Niño events. In a final step we envisage to generate an Antarctic risk map that indicates the regional impact of potential warm-water entrainment with respect to the long-term ice-flow response and ice-sheet stability.
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标签 | Ice
; Arctic & Antarctica
; Sea-level Rise
; Oceans
; RD1 - Earth System Analysis
; PISM-PIK
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关键词 | https://www.pik-potsdam.de/en/output/projects/all/827
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URL | Potsdam Institute for Climate Impact Research (Germany)
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资源类型 | 智库项目
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条目标识符 | http://119.78.100.153/handle/2XGU8XDN/527720
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推荐引用方式 GB/T 7714 |
Ricarda Winkelmann. Vulnerability of the Antarctic Ice Sheet to a changing thermocline. 2021.
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