| DOI: | 10.1002/2013GL058121
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| 论文题名: | Arctic Ocean basin liquid freshwater storage trend 1992-2012 |
| 作者: | Rabe B.; Karcher M.; Kauker F.; Schauer U.; Toole J.M.; Krishfield R.A.; Pisarev S.; Kikuchi T.; Su J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-10421
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| EISSN: | 1944-10152
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| 出版年: | 2014
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| 卷: | 41, 期:3 | | 起始页码: | 961
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| 结束页码: | 968
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| 语种: | 英语
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| 英文关键词: | Arctic
; liquid freshwater
; model
; observation
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| Scopus关键词: | Models
; Oceanography
; Sea ice
; Water
; Arctic
; Arctic Oscillation
; Freshwater contents
; Freshwater storages
; observation
; Observational study
; Ocean circulation
; Oscillation index
; Liquids
; freshwater environment
; global climate
; numerical model
; oceanic circulation
; oscillation
; salinity
; sea ice
; Arctic Ocean
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| 英文摘要: | Freshwater in the Arctic Ocean plays an important role in the regional ocean circulation, sea ice, and global climate. From salinity observed by a variety of platforms, we are able, for the first time, to estimate a statistically reliable liquid freshwater trend from monthly gridded fields over all upper Arctic Ocean basins. From 1992 to 2012 this trend was 600±300 km3 yr-1. A numerical model agrees very well with the observed freshwater changes. A decrease in salinity made up about two thirds of the freshwater trend and a thickening of the upper layer up to one third. The Arctic Ocean Oscillation index, a measure for the regional wind stress curl, correlated well with our freshwater time series. No clear relation to Arctic Oscillation or Arctic Dipole indices could be found. Following other observational studies, an increased Bering Strait freshwater import to the Arctic Ocean, a decreased Davis Strait export, and enhanced net sea ice melt could have played an important role in the freshwater trend we observed. Key Points Upper Arctic Ocean liquid freshwater trend 1992-2012: 600±300 km3/yr Two thirds of the trend was due to changes in salinity, one third due to layer thickness Covariability of liquid freshwater content and Arctic Ocean Oscillation ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893783992&doi=10.1002%2f2013GL058121&partnerID=40&md5=0deb33573b67104259ca2052680ff9a6
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7685
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
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| Recommended Citation: | |
Rabe B.,Karcher M.,Kauker F.,et al. Arctic Ocean basin liquid freshwater storage trend 1992-2012[J]. Geophysical Research Letters,2014-01-01,41(3).
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