Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD026324 |
Springtime extrememoisture transport into the Arctic and its impact on sea ice concentration | |
Yang, Wenchang; Magnusdottir, Gudrun | |
2017-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Recent studies suggest that springtime moisture transport into the Arctic can initiate sea ice melt that extends to a large area in the following summer and fall, which can help explain Arctic sea ice interannual variability. Yet the impact from an individual moisture transport event, especially the extreme ones, is unclear on synoptic to intraseasonal time scales and this is the focus of the current study. Springtime extreme moisture transport into the Arctic from a daily data set is found to be dominant over Atlantic longitudes. Lag composite analysis shows that these extreme events are accompanied by a substantial sea ice concentration reduction over the Greenland-Barents-Kara Seas that lasts around a week. Surface air temperature also becomes anomalously high over these seas and cold to the west of Greenland as well as over the interior Eurasian continent. The blocking weather regime over the North Atlantic is mainly responsible for the extreme moisture transport, occupying more than 60% of the total extreme days, while the negative North Atlantic Oscillation regime is hardly observed at all during the extreme transport days. These extreme moisture transport events appear to be preceded by eastward propagating large-scale tropical convective forcing by as long as 2 weeks but with great uncertainty due to lack of statistical significance. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404131500017 |
WOS关键词 | ENERGY-TRANSPORT ; CLIMATE-CHANGE ; AMPLIFICATION ; MOISTURE ; PACIFIC ; MELT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/33413 |
专题 | 气候变化 |
作者单位 | Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA |
推荐引用方式 GB/T 7714 | Yang, Wenchang,Magnusdottir, Gudrun. Springtime extrememoisture transport into the Arctic and its impact on sea ice concentration[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(10). |
APA | Yang, Wenchang,&Magnusdottir, Gudrun.(2017).Springtime extrememoisture transport into the Arctic and its impact on sea ice concentration.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(10). |
MLA | Yang, Wenchang,et al."Springtime extrememoisture transport into the Arctic and its impact on sea ice concentration".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.10(2017). |
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