| 项目编号: | 1643679
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| 项目名称: | Collaborative Research: Initiation of the Antarctic Slope Front in West Antarctica |
| 作者: | Kevin Speer
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| 承担单位: | Florida State University
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| 批准年: | 2017
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| 开始日期: | 2017-06-15
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| 结束日期: | 2020-05-31
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| 资助金额: | 271104
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Polar
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| 英文关键词: | antarctica
; bellingshausen sea
; antarctic slope front
; west antarctic ice shelf
; frontal circulation
; antarctic surface water
; west antarctic peninsula
; post-doctoral researcher
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| 英文摘要: | The Antarctic slope front (ASF) is a persistent feature of the continental shelf and slope around much of Antarctica. It is a notably coherent yet under-sampled component of the Southern Ocean?s global circulation. The AFS is a primary source region for the renewal of Antarctic surface water from below and also bottom water flow into the global deep ocean. There is considerable interest in understanding the exchanges and transformations of AFS ocean heat, gasses, salt (freshwater), nutrients, particulates and carbon through exchanges with components of the high latitude ocean, polar atmosphere, sea-ice and land ice.
The ASF and associated currents are absent on the West Antarctic Peninsula, whereas a well-established ASF has been observed in the Amundsen Sea. In between, the Bellingshausen Sea hosts ice shelves that have experienced some of the most dramatic recent thinning rates in Antarctica, yet remains one of the most under-studied regions of the global ocean. The project will make a comprehensive survey of the frontal circulation along the continental shelf break and the major troughs of the Bellingshausen Sea using both ocean gliders and ship-based CTD and ADCP measurements. In terms of broader impacts, this research will reduce the uncertainty in coupled climate models that may be used to project future sea-level rise resulting from rapid thinning of the West Antarctic ice shelves that connect to the Amundsen and Bellingshausen Seas. The project will also support the education of a graduate student and post-doctoral researcher. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/90013
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Kevin Speer. Collaborative Research: Initiation of the Antarctic Slope Front in West Antarctica. 2017-01-01.
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