DOI: 10.1002/joc.5241
论文题名: Climatic variability of the pacific and atlantic oceans and Western US Snowpack
作者: Pathak P. ; Kalra A. ; Lamb K.W. ; Miller W.P. ; Ahmad S. ; Amerineni R. ; Ponugoti D.P.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 3 起始页码: 1257
结束页码: 1269
语种: 英语
英文关键词: East-west wind
; Geopotential height
; Sea surface temperature
; Singular-value decomposition
; Snow water equivalent
Scopus关键词: Atmospheric pressure
; Atmospheric temperature
; Singular value decomposition
; Snow
; Snow melting systems
; Submarine geophysics
; Surface properties
; Surface waters
; Water management
; Australian continents
; Climatic variability
; Geo-potential heights
; Negative correlation
; Sea surface temperature (SST)
; Snow water equivalent
; Southern oscillation
; Western United States
; Oceanography
; climate variation
; El Nino-Southern Oscillation
; geopotential
; sea surface temperature
; singular value decomposition
; snow water equivalent
; snowpack
; teleconnection
; Atlantic Ocean
; Great Lakes [North America]
; Pacific Ocean
; United States
英文摘要: This study examines the changing characteristics of snow water equivalent (SWE) in western United States and their teleconnections with large-scale variability of the Pacific and Atlantic Oceans. This study evaluated the relationship among sea surface temperatures (SST), 500-mbar geopotential height (Z500), 500-mbar east-west wind (U500), and western United States SWE (1 March, 1 April, and 1May). The averages of SST, Z500, and U500 were computed to create a lead time of 2-10months. Three different 6-month series were computed - January-June, April-September, and July-December - and were correlated with SWE stations in the western United States. The study utilized singular-value decomposition (SVD) for a period of 1961-2016 to correlate the SWE and climate indices. SVD was applied between the standardized SST and SWE to obtain their correlation and to evaluate connection with Z500 and U500 within the same SVD relationship. Specifically, SVD was not applied independently on each variable prior to this study. The correlations were observed to increase as the lead time decreased. First mode SVD showed a pronounced non-El Niño-Southern Oscillation short-wave train for the July-December climate in the Z500 data; this terminated over the Great Lakes region, and was strongly correlated with the warming of the SST near the east coast of Japan, resulting in decreased SWE in the study area. Second mode SVD showed a negative correlation between SWE stations in Colorado and Utah and SST near the Asian and Australian continents. The associations between climate indices and SWE that were identified during this study could be used to improve long-term forecasts, resulting in better management of water resources in the region. © 2017 Royal Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117139
Appears in Collections: 气候减缓与适应
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作者单位: Graduate Water Resources Engineer, FTN Associates Ltd, Little Rock, AR, United States; Department of Civil and Environmental Engineering, Southern Illinois University, Carbondale, IL, United States; Department of Civil Engineering, California State Polytechnic University Pomona, Pomona, CA, United States; Colorado Basin River Forecast Center, NOAA, Salt Lake City, UT, United States; Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV, United States; Department of Electrical and Computer Engineering, Southern Illinois University, Carbondale, IL, United States
Recommended Citation:
Pathak P.,Kalra A.,Lamb K.W.,et al. Climatic variability of the pacific and atlantic oceans and Western US Snowpack[J]. International Journal of Climatology,2018-01-01,38(3)