DOI: 10.1002/2016GL068798
论文题名: Climate change impact on the roles of temperature and precipitation in western U.S. snowpack variability
作者: Scalzitti J. ; Strong C. ; Kochanski A.
刊名: Geophysical Research Letters
ISSN: 0094-9556
EISSN: 1944-9287
出版年: 2016
卷: 43, 期: 10 起始页码: 5361
结束页码: 5369
语种: 英语
英文关键词: climate change-driven snowpack
; dynamical downscaling
; pseudo global warming
; snowpack variability
; western United States
; WRF
Scopus关键词: Global warming
; Climate change impact
; Climate change scenarios
; Dynamical downscaling
; Mountainous regions
; Negative correlation
; Observation networks
; Snowpack variability
; Western United States
; Climate change
英文摘要: We employ dynamical downscaling and pseudo global warming methodologies to evaluate climate change impact on the roles of temperature and precipitation in spring snowpack (S) variability across the western United States (U.S.). The negative correlation between S and temperature weakens linearly with elevation, whereas the correlation between S and precipitation increases asymptotically with elevation. The curvilinear relationship in the latter case was not visible in prior studies because of the observation networks' limited range. In our historical validation, there is a range of threshold elevations (1580–2181 m) across six mountainous regions, above which precipitation is the main driver of snowpack variability and below which temperature is the main driver. Under a moderate end-of-century climate change scenario, these thresholds increase by 191 to 432 m. These rising thresholds indicate increasing spatial and elevational vulnerability of western U.S. spring snowpack along with associated impacts to hydrologic and ecologic systems. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971529348&doi=10.1002%2f2016GL068798&partnerID=40&md5=8185aadf762f7c236ca7d0fb2e2e67f1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10519
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 Utah, Salt Lake City, UT, United States
Recommended Citation:
Scalzitti J.,Strong C.,Kochanski A.. Climate change impact on the roles of temperature and precipitation in western U.S. snowpack variability[J]. Geophysical Research Letters,2016-01-01,43(10).