globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069796
论文题名:
Greater aerial moisture transport distances with warming amplify interbasin salinity contrasts
作者: Singh H.K.A.; Donohoe A.; Bitz C.M.; Nusbaumer J.; Noone D.C.
刊名: Geophysical Research Letters
ISSN: 0094-8723
EISSN: 1944-8454
出版年: 2016
卷: 43, 期:16
起始页码: 8677
结束页码: 8684
语种: 英语
英文关键词: aerial moisture transport ; Atlantic-Pacific salinity contrast ; climate change ; hydrologic cycle ; Lagrangian Transport ; numerical water tracers
Scopus关键词: Climate change ; Climate models ; Evaporation ; Hydrology ; Atlantic-Pacific salinity contrast ; Hydrologic cycles ; Lagrangian transport ; Moisture transport ; Water tracers ; Moisture
英文摘要: The distance atmospheric moisture travels is fundamental to Earth's hydrologic cycle, governing how much evaporation is exported versus precipitated locally. The present-day tropical Atlantic is one region that exports much locally evaporated moisture away, leading to more saline surface waters in the Atlantic compared to the Indo-Pacific at similar latitudes. Here we use a state-of-the-art global climate model equipped with numerical water tracers to show that over half of the atmospheric freshwater exported from the Atlantic originates as evaporation in the northern Atlantic subtropics, primarily between 10°N and 20°N, and is transported across Central America via prevailing easterlies into the equatorial Pacific. We find enhanced moisture export from the Atlantic to Pacific with warming is due to greater distances between moisture source and sink regions, which increases moisture export from the Atlantic at the expense of local precipitation. Distance traveled increases due to longer moisture residence times, not simply Clausius-Clapeyron scaling. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84982286090&doi=10.1002%2f2016GL069796&partnerID=40&md5=8d75c1f3fa023894b71728be5c860a89
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9686
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: Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States

Recommended Citation:
Singh H.K.A.,Donohoe A.,Bitz C.M.,et al. Greater aerial moisture transport distances with warming amplify interbasin salinity contrasts[J]. Geophysical Research Letters,2016-01-01,43(16).
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