Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aaecle |
Stability of the arctic halocline: a new indicator of arctic climate change | |
Polyakov, Igor V.1,2; Pnyushkov, Andrey V.1; Carmack, Eddy C.3 | |
2018-12-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada |
英文摘要 | In this study, we propose a new Arctic climate change indicator based on the strength of the Arctic halocline, a porous barrier between the cold and fresh upper ocean and ice and the warm intermediate Atlantic Water of the Arctic Ocean. This indicator provides a measure of the vulnerability of sea ice to upward heat fluxes from the ocean interior, as well as the efficiency of mixing affecting carbon and nutrient exchanges. It utilizes the well-accepted calculation of available potential energy (APE), which integrates anomalies of potential density from the surface downwards through the surface mixed layer to the base of the halocline. Regional APE contrasts are striking and show a strengthening of stratification in the Amerasian Basin (AB) and an overall weakening in the Eurasian Basin (EB). In contrast, Arctic-wide time series of APE is not reflective of these inter-basin contrasts. The use of two time series of APE-AB and EB-as an indicator of Arctic Ocean climate change provides a powerful tool for detecting and monitoring transition of the Arctic Ocean towards a seasonally ice-free Arctic Ocean. This new, straightforward climate indicator can be used to inform both the scientific community and the broader public about changes occurring in the Arctic Ocean interior and their potential impacts on the state of the ice cover, the productivity of marine ecosystems and mid-latitude weather. |
英文关键词 | Arctic Ocean halocline stability climate change indicators |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000453617600001 |
WOS关键词 | OCEAN ; WATER ; VARIABILITY ; BASIN |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34308 |
专题 | 气候变化 |
作者单位 | 1.Univ Alaska Fairbanks, Int Arctic Res Ctr, 2160 Koyukuk Dr, Fairbanks, AK 99775 USA; 2.Univ Alaska Fairbanks, Coll Nat Sci & Math, 2160 Koyukuk Dr, Fairbanks, AK 99775 USA; 3.Fisheries & Oceans Canada, Inst Ocean Sci, 9860 West Saanich Rd, Sidney, BC V8L 4B2, Canada |
推荐引用方式 GB/T 7714 | Polyakov, Igor V.,Pnyushkov, Andrey V.,Carmack, Eddy C.. Stability of the arctic halocline: a new indicator of arctic climate change[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(12). |
APA | Polyakov, Igor V.,Pnyushkov, Andrey V.,&Carmack, Eddy C..(2018).Stability of the arctic halocline: a new indicator of arctic climate change.ENVIRONMENTAL RESEARCH LETTERS,13(12). |
MLA | Polyakov, Igor V.,et al."Stability of the arctic halocline: a new indicator of arctic climate change".ENVIRONMENTAL RESEARCH LETTERS 13.12(2018). |
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