globalchange  > 过去全球变化的重建
DOI: 10.1111/1752-1688.12733
WOS记录号: WOS:000470033600013
论文题名:
Streamflow Forecasting Using Singular Value Decomposition and Support Vector Machine for the Upper Rio Grande River Basin
作者: Bhandari, Swastik1; Thakur, Balbhadra1; Kalra, Ajay1; Miller, William P.2; Lakshmi, Venkat3; Pathak, Pratik4
通讯作者: Kalra, Ajay
刊名: JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION
ISSN: 1093-474X
EISSN: 1752-1688
出版年: 2019
卷: 55, 期:3, 页码:680-699
语种: 英语
英文关键词: oceanic-atmospheric variability ; streamflow ; forecast ; singular value decomposition ; support vector machine
WOS关键词: WESTERN NORTH-AMERICA ; CLIMATE-CHANGE ; WATER-RESOURCES ; UNITED-STATES ; VARIABILITY ; MODEL ; PATTERNS ; PACIFIC ; DROUGHT ; TELECONNECTIONS
WOS学科分类: Engineering, Environmental ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向: Engineering ; Geology ; Water Resources
英文摘要:

The current study improves streamflow forecast lead-time by coupling climate information in a data-driven modeling framework. The spatial-temporal correlation between streamflow and oceanic-atmospheric variability represented by sea surface temperature (SST), 500-mbar geopotential height (Z(500)), 500-mbar specific humidity (SH500), and 500-mbar east-west wind (U-500) of the Pacific and the Atlantic Ocean is obtained through singular value decomposition (SVD). SVD significant regions are weighted using a nonparametric method and utilized as input in a support vector machine (SVM) framework. The Upper Rio Grande River Basin (URGRB) is selected to test the applicability of the proposed model for the period of 1965-2014. The April-August streamflow volume is forecasted using previous year climate variability, creating a lagged relationship of 1-13 months. SVD results showed the streamflow variability was better explained by SST and U-500 as compared to Z(500) and SH500. The SVM model showed satisfactory forecasting ability with best results achieved using a one-month lead to forecast the following four-month period. Overall, the SVM results showed excellent predictive ability with average correlation coefficient of 0.89 and Nash-Sutcliffe efficiency of 0.79. This study contributes toward identifying new SVD significant regions and improving streamflow forecast lead-time of the URGRB.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/139582
Appears in Collections:过去全球变化的重建

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作者单位: 1.Southern Illinois Univ Carbondale, Dept Civil & Environm Engn, Carbondale, IL 62901 USA
2.NOAA Colorado Basin River Forecast Ctr, Weather Forecast, Salt Lake City, UT USA
3.Univ Virginia, Dept Engn Syst & Environm, Charlottesville, VA USA
4.WOOD PLC, Water Resources, Chantilly, VA USA

Recommended Citation:
Bhandari, Swastik,Thakur, Balbhadra,Kalra, Ajay,et al. Streamflow Forecasting Using Singular Value Decomposition and Support Vector Machine for the Upper Rio Grande River Basin[J]. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION,2019-01-01,55(3):680-699
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