| 项目编号: | 1302884
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| 项目名称: | Collaborative Research: AON: Continuing the Beaufort Gyre Observing System to Document and Enhance Understanding of the Beaufort Gyre Freshwater Reservoir Transformations and Fate |
| 作者: | Andrey Proshutinsky
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| 承担单位: | Woods Hole Oceanographic Institution
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| 批准年: | 2013
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| 开始日期: | 2014-07-01
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| 结束日期: | 2019-06-30
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| 资助金额: | USD4463674
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| 资助来源: | US-NSF
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| 项目类别: | Continuing 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: | beaufort gyre
; aon
; global climate system
; bg system
; temperature
; arctic ocean physical environmental system
; other aon
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| 英文摘要: | This Arctic Observing Network (AON) project will continue Beaufort Gyre Observing System (BGOS) operations begun in 2003 during 2013-2018 to document the unprecedented changes in sea ice and ocean parameters that are presently occurring in the Beaufort Gyre (BG) region. The BG is a unique circulation component within the Arctic Ocean physical environmental system reflecting a set of specific atmospheric, sea-ice, and oceanic conditions that have significant interrelationships with the Arctic-wide as well as global climate systems. We will continue measuring time series of temperature, salinity, currents, geochemical tracers, sea ice draft, and sea level using bottom-anchored moorings and shipboard measurements. BGOS moorings plus two Japanese moorings (at no cost to this project) will acquire precise data on the variations of the vertical distribution of seawater properties, bottom pressures, sea ice draft and surface waves (during open water conditions) at scientifically important sites within the BG system. Ship-based synoptic sampling covering the Beaufort Gyre will continue to be performed each summer in collaboration with scientists in Canada and Japan, with shared logistics expenses, to augment the year-round mooring measurements. Temperature, salinity, oxygen, nutrients, barium, and 18O will continue to be measured and analyzed at standard locations along sections at 140W, 150W, ~ 75N and ~78N using a shipboard CTD/rosette to continue the long-term time series started in 2003. Samples that provide information on longer time-scales, such as CFCs and carbon tetrachloride, alkalinity, total CO2, dissolved inorganic carbon and tritium/3He, will be collected less frequently. Between CTD/rosette casts, expendable CTDs that profile to 1100 m depth will continue to be used to increase spatial resolution of the temperature and salinity fields. The proposed work will be coordinated with the basic elements of AON to enhance effectiveness and interconnections of observational activities, and the field program will continue to accommodate other AON and NSF funded projects when able. Data will be made available on the project website with a metadata pointer in ACADIS. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96427
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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: | |
Andrey Proshutinsky. Collaborative Research: AON: Continuing the Beaufort Gyre Observing System to Document and Enhance Understanding of the Beaufort Gyre Freshwater Reservoir Transformations and Fate. 2013-01-01.
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