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Relationships between oceanic-atmospheric patterns and soil moisture in the Upper Colorado River Basin
Tang, Chunling1; Piechota, Thomas C.2; Chen, Dong3
2011-12-06
Source PublicationJOURNAL OF HYDROLOGY
Volume411Issue:1-2Pages:77-90
AbstractSoil moisture is an important drought index in the Upper Colorado River Basin (UCRB) and understanding its relationships with oceanic-atmospheric patterns provides valuable information for sustainable water management. To begin with, this study generated 50 years (1950-2000) of soil moisture data in the UCRB using the Variable Infiltration Capacity (VIC) model. This was followed by a temporal evaluation of Pacific Ocean Sea Surface Temperatures (SSTs) and soil moisture in the UCRB during drought, normal, and wet years. Besides in-phase analysis, lead time analysis was also performed in which the previous year's SSTs were evaluated with the current year soil moisture. Furthermore, the Singular Value Decomposition (SVD) analysis revealed strong correlation between the first temporal expansion series of SSTs and soil moisture in the UCRB. Finally, this study examined the relationships between multiple oceanic-atmospheric patterns and soil moisture in the UCRB in drought, normal, and wet years. Both in-phase and lead time analyses indicated that the Pacific Decadal Oscillation (PDO) strongly influenced soil moisture by displaying positive coupled regions (significance >95%). In drought and wet years, the lead time analysis showed a positive correlation between the El Nit-lop-Southern Oscillation (ENSO) and soil moisture but the in-phase analysis resulted in a negative correlation. The Atlantic Multi-decadal Oscillation (AMO) displayed similar coupled regions for both in-phase and lead time analyses in drought and wet years. Understanding the relationships between soil moisture and oceanic-atmospheric patterns has increasingly important implications for the water resources management in the UCRB since soil moisture plays a key role in predicting the runoff and streamflow. (C) 2011 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordSoil Moisture Drought Oceanic-atmospheric Patterns Singular Value Decomposition Upper Colorado River Basin
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS Subject ExtendedEngineering ; Geology ; Water Resources
WOS KeywordSEA-SURFACE TEMPERATURE ; NINO SOUTHERN-OSCILLATION ; CLIMATE VARIABILITY ; EL-NINO ; UNITED-STATES ; DROUGHT ; ENSO ; STREAMFLOW ; PACIFIC ; MODEL
Indexed BySCI
Language英语
WOS SubjectEngineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000298021200007
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68118
Collection中国科学院地理科学与资源研究所
Corresponding AuthorChen, Dong
Affiliation1.Univ Washington, Dept Civil & Environm Engn, Seattle, WA 98195 USA
2.Univ Nevada, Dept Civil & Environm Engn, Las Vegas, NV 89154 USA
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Tang, Chunling,Piechota, Thomas C.,Chen, Dong. Relationships between oceanic-atmospheric patterns and soil moisture in the Upper Colorado River Basin[J]. JOURNAL OF HYDROLOGY,2011,411(1-2):77-90.
APA Tang, Chunling,Piechota, Thomas C.,&Chen, Dong.(2011).Relationships between oceanic-atmospheric patterns and soil moisture in the Upper Colorado River Basin.JOURNAL OF HYDROLOGY,411(1-2),77-90.
MLA Tang, Chunling,et al."Relationships between oceanic-atmospheric patterns and soil moisture in the Upper Colorado River Basin".JOURNAL OF HYDROLOGY 411.1-2(2011):77-90.
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