| 项目编号: | 1341647
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| 项目名称: | Collaborative Research: High-Resolution Underway Air-Sea Observations in Drake Passage for Climate Science |
| 作者: | Colm Sweeney
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| 承担单位: | University of Colorado at Boulder
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| 批准年: | 2013
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| 开始日期: | 2014-09-01
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| 结束日期: | 2016-08-31
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| 资助金额: | USD180169
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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: | drake passage
; additional hydrographic observation
; underway surface partial pressure
; climate relevant time scale
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| 英文摘要: | The Drake Passage is the body of water between South America and the Western Antarctic Peninsula, thus connecting the Southern Atlantic and Southern Pacific Oceans through the unimpeded flow of the immense Antarctic Circumpolar Current (ACC).
Using the relatively frequent ferry crossings of the Drake Passage by the RV/AS LMGould, the USAP supply ship, this proposal will continue the of collection of upper ocean XBT temperature and XTCD salinity data in this natural chokepoint for the ACC. This will yield additional hydrographic observations on seasonal to interannual timescales, and on spatial scales ranging from the current core to mesoscale eddies. These high-resolution, multi-repeat transects (up to 6 ~7 crossings per year) are quality controlled, archived and made available to the broader community in order to facilitate study of the modes of variability of the dominant oceanic current on the planet (the ACC). The Drake Passage XBT/XCTD transect time series now extends back to 1996, and continues to add to a number of quantitative estimates of the long term trends in Southern Ocean fronts, surface water mass properties, their response to atmospheric forcing on climate relevant time scales. This proposal also seeks renewal of a near decadal time series effort measuring the underway surface partial pressure of carbon dioxide (pCO2) in regular transects across the Drake Passage. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95664
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Colm Sweeney. Collaborative Research: High-Resolution Underway Air-Sea Observations in Drake Passage for Climate Science. 2013-01-01.
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