globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50108
论文题名:
Irrigation in California's Central Valley strengthens the southwestern U.S. water cycle
作者: Lo M.-H.; Famiglietti J.S.
刊名: Geophysical Research Letters
ISSN: 0094-9353
EISSN: 1944-9084
出版年: 2013
卷: 40, 期:2
起始页码: 301
结束页码: 306
语种: 英语
Scopus关键词: Agricultural irrigation ; Agricultural water use ; Atmospheric circulation ; Colorado River ; Global climate model ; Hydrological cycles ; Hydrological response ; Summer precipitation ; Climatology ; Hydraulic structures ; Landforms ; Stream flow ; Water management ; Water supply ; Irrigation ; climate modeling ; evapotranspiration ; global climate ; hydrological cycle ; irrigation system ; precipitation (climatology) ; streamflow ; water management ; water use ; water vapor ; California ; Central Valley [California] ; United States
英文摘要: Characterizing climatological and hydrological responses to agricultural irrigation continues to be an important challenge to understanding the full impact of water management on the Earth's environment and hydrological cycle. In this study, we use a global climate model, combined with realistic estimates of regional agricultural water use, to simulate the local and remote impacts of irrigation in California's Central Valley. We demonstrate a clear mechanism that the resulting increase in evapotranspiration and water vapor export significantly impacts the atmospheric circulation in the southwestern United States, including strengthening the regional hydrological cycle. We also identify that irrigation in the Central Valley initiates a previously unknown, anthropogenic loop in the regional hydrological cycle, in which summer precipitation is increased by 15%, causing a corresponding increase in Colorado River streamflow of ∼30%. Ultimately, some of this additional streamflow is returned to California via managed diversions through the Colorado River aqueduct and the All-American Canal. © 2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874879049&doi=10.1002%2fgrl.50108&partnerID=40&md5=5607cb96ade48eb1725ca6d74bad418a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6617
Appears in Collections:气候减缓与适应

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作者单位: UC Center for Hydrologic Modeling, University of California, Irvine, CA 92697, United States

Recommended Citation:
Lo M.-H.,Famiglietti J.S.. Irrigation in California's Central Valley strengthens the southwestern U.S. water cycle[J]. Geophysical Research Letters,2013-01-01,40(2).
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