DOI: 10.1002/2014GL060500
论文题名: Extent of the rain-snow transition zone in the western U.S. under historic and projected climate
作者: Klos P.Z. ; Link T.E. ; Abatzoglou J.T.
刊名: Geophysical Research Letters
ISSN: 0094-10012
EISSN: 1944-9743
出版年: 2014
卷: 41, 期: 13 起始页码: 4560
结束页码: 4568
语种: 英语
英文关键词: climate change
; precipitation phase
; rain snow transition
; rain-snow transition
Scopus关键词: Climate change
; Snow
; Water resources
; Ecosystem dynamics
; Higher resolution
; Precipitation data
; Precipitation phase
; rain-snow transition
; Resource availability
; Transition zones
; Western United States
; Rain
英文摘要: This study investigates the extent of the rain-snow transition zone across the complex terrain of the western United States for both late 20th century climate and projected changes in climate by the mid-21st century. Observed and projected temperature and precipitation data at 4 km resolution were used with an empirical probabilistic precipitation phase model to estimate and map the likelihood of snow versus rain occurrence. This approach identifies areas most likely to undergo precipitation phase change over the next half century. At broad scales, these projections indicate an average 30% decrease in areal extent of winter wet-day temperatures conducive to snowfall over the western United States. At higher resolution scales, this approach identifies existing and potential experimental sites best suited for research investigating the mechanisms linking precipitation phase change to a broad array of processes, such as shifts in rain-on-snow flood risk, timing of water resource availability, and ecosystem dynamics. Key Points Projections map changes in precipitation phase across the western U.S. Approximately 30% reduction by mid-21st century in the wintertime snow-dominated area Annual duration of snowfall declining by ~2 months across mountain regions ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903422444&doi=10.1002%2f2014GL060500&partnerID=40&md5=35a2dffbf2c397d34bfa77f2c1618e19
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7276
Appears in Collections: 气候减缓与适应
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作者单位: College of Natural Resources, University of Idaho, Moscow ID, United States
Recommended Citation:
Klos P.Z.,Link T.E.,Abatzoglou J.T.. Extent of the rain-snow transition zone in the western U.S. under historic and projected climate[J]. Geophysical Research Letters,2014-01-01,41(13).