| DOI: | 10.1002/2016GL069386
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| 论文题名: | Role of ocean evaporation in California droughts and floods |
| 作者: | Wei J.; Jin Q.; Yang Z.-L.; Dirmeyer P.A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9666
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| EISSN: | 1944-9397
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| 出版年: | 2016
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| 卷: | 43, 期:12 | | 起始页码: | 6554
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| 结束页码: | 6562
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| 语种: | 英语
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| 英文关键词: | California drought
; evaporation
; precipitation
; water cycle
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| Scopus关键词: | Atmospheric temperature
; Evaporation
; Floods
; Oceanography
; Precipitation (chemical)
; Surface waters
; Wind
; Atmospheric circulation
; Atmospheric convergence
; California
; Eastern north pacific
; High pressure system
; Sea surface temperature anomalies
; Surface wind speed
; Water cycle
; Drought
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| 英文摘要: | Since winter 2011, a record-breaking drought has occurred in California. Studies found that the drought is mainly caused by a persistent high-pressure system off the U.S. West Coast, which is linked to Pacific sea surface temperature anomalies. The water cycles associated with the droughts and floods are still not clearly understood. Here we show that the atmospheric circulation off the West Coast not only controls the atmospheric convergence and formation of precipitation but also largely determines surface wind speed, which further affects the evaporation over the eastern North Pacific, the major evaporative moisture source for California precipitation. Because of this mechanism, the ocean evaporation over the eastern North Pacific has been reduced during the recent drought. However, the ocean evaporation anomalies have little direct influence on California precipitation, especially during dry years, mainly because of their weak amplitudes. The California droughts cannot be readily attributed to the reduced ocean evaporation. The association between increased Pacific evaporation and floods over California is somewhat stronger. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978151469&doi=10.1002%2f2016GL069386&partnerID=40&md5=cc773f270fa3cfae89cfa9ae5f7d8604
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| Citation statistics: |
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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/10629
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Jackson School of Geosciences, University of Texas at Austin, Austin, TX, United States
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| Recommended Citation: | |
Wei J.,Jin Q.,Yang Z.-L.,et al. Role of ocean evaporation in California droughts and floods[J]. Geophysical Research Letters,2016-01-01,43(12).
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