DOI: 10.1002/2015GL066727
论文题名: Running dry: The U.S. Southwest's drift into a drier climate state
作者: Prein A.F. ; Holland G.J. ; Rasmussen R.M. ; Clark M.P. ; Tye M.R.
刊名: Geophysical Research Letters
ISSN: 0094-9388
EISSN: 1944-9119
出版年: 2016
卷: 43, 期: 3 起始页码: 1272
结束页码: 1279
语种: 英语
英文关键词: extremes
; precipitation
; U.S. droughts
; U.S. Southwest
; weather types
Scopus关键词: Meteorology
; Precipitation (chemical)
; Storms
; Extreme events
; Extremes
; Frequency changes
; Precipitation intensity
; Precipitation trends
; Tropical cyclone
; U.S. Southwest
; Weather types
; Drought
; anticyclone
; climate conditions
; data interpretation
; drought
; extreme event
; precipitation intensity
; regional climate
; trend analysis
; tropical cyclone
; weather
; Atlantic Ocean
; California
; Midwest
; Oklahoma [United States]
; Pacific Ocean
; Pacific Ocean (Northeast)
; United States
英文摘要: Changes in precipitation have far-reaching consequences on human society and ecosystems as has been demonstrated by recent severe droughts in California and the Oklahoma region. Droughts are beside tropical cyclones the most costly weather and climate related extreme events in the U.S. We apply a weather type (WT) analysis to reanalysis data from 1979-2014 that characterize typical weather conditions over the contiguous United States. This enables us to assign precipitation trends within 1980-2010 to changes in WT frequencies and changes in precipitation intensities. We show that in the North Atlantic and Midwest region precipitation intensity changes are the major driver of increasing precipitation trends. In the U.S. Southwest, however, WT frequency changes lead to a significant precipitation decrease of up to -25% related to an increase in anticyclonic conditions in the North East Pacific. This trend is partly counteracted by increasing precipitation intensities. © 2016. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956854855&doi=10.1002%2f2015GL066727&partnerID=40&md5=e9c6a91c06ffc2a0c1d3698650b35285
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10351
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: National Center for Atmospheric Research, Boulder, CO, United States
Recommended Citation:
Prein A.F.,Holland G.J.,Rasmussen R.M.,et al. Running dry: The U.S. Southwest's drift into a drier climate state[J]. Geophysical Research Letters,2016-01-01,43(3).