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DOI	10.2166/wcc.2016.162
	Wavelet analyses of western us streamflow with ENSO and PDO
	Tamaddun K.A.; Kalra A.; Ahmad S.
发表日期	2017
ISSN	20402244
起始页码	26
结束页码	39
卷号	8 期号:1
英文摘要	This study investigated the correlation between western US streamflow and two of the most important oceanic–atmospheric indices having significant effects in this region, namely, El Niño Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO). Data from 61 streamflow stations across six different hydrologic regions of the western USA were analyzed, using a study period of 60 years from 1951 to 2010. Continuous wavelet transformation along with cross wavelet transformation and wavelet coherence were used to analyze the interaction between streamflow and climate indices. The results showed that streamflows have changed coincidentally with both ENSO and PDO over the study period at different time-scale bands and at various time intervals. Both ENSO and PDO showed correlation with streamflow change behavior from 1980 to 2005. ENSO showed a strong correlation with streamflow across the entire study period in the 10–12 year band. PDO showed a strong correlation in bands of 8–10 years and bands beyond 16 years. The phase relationship showed that both ENSO and PDO preceded streamflow change behavior; in some instances, the variables were found to be moving in opposite directions even though they changed simultaneously. The results can be helpful in understanding the relationship between the climate indices and streamflow. © IWA Publishing 2017.
英文关键词	Continuous wavelet transformation; Cross wavelet transformation; ENSO; PDO; Wavelet coherence; Western US streamflow
语种	英语
scopus关键词	Atmospheric pressure; Stream flow; Wavelet analysis; Wavelet transforms; Continuous wavelet transformation; Different time scale; ENSO; Pacific decadal oscillation; Phase relationships; Southern oscillation; Wavelet coherences; Wavelet transformations; Climatology; correlation; El Nino-Southern Oscillation; Pacific Decadal Oscillation; streamflow; wavelet analysis; United States
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148122
作者单位	Department of Civil and Environmental Engineering and Construction, University of Nevada, 4505 S. Maryland Parkway, Las Vegas, NV 89154-4015, United States; Department of Civil and Environmental Engineering, Southern Illinois University, 1230 Lincoln Drive, Carbondale, IL 62901-6603, United States
推荐引用方式 GB/T 7714	Tamaddun K.A.,Kalra A.,Ahmad S.. Wavelet analyses of western us streamflow with ENSO and PDO[J],2017,8(1).
APA	Tamaddun K.A.,Kalra A.,&Ahmad S..(2017).Wavelet analyses of western us streamflow with ENSO and PDO.Journal of Water and Climate Change,8(1).
MLA	Tamaddun K.A.,et al."Wavelet analyses of western us streamflow with ENSO and PDO".Journal of Water and Climate Change 8.1(2017).