Baseflow estimation in typical catchments in the Yellow River Basin, China

Baseflow is crucial to maintaining river flow during low-rainfall periods. The baseflow estimation is important to water supply and ecological environmental protection in the Yellow River Basin (YRB), China. This paper comprehensively assessed the applicability of four single-parameter digital filte...

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Autores principales:	Caihong Hu, Dong Zhao, Shengqi Jian
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	annual runoff baseflow index baseflow separation daily runoff digital filter yellow river basin Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/d35c3832c9064866934bb1b0416a01bd
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spelling	oai:doaj.org-article:d35c3832c9064866934bb1b0416a01bd2021-11-06T07:09:21ZBaseflow estimation in typical catchments in the Yellow River Basin, China1606-97491607-079810.2166/ws.2020.338https://doaj.org/article/d35c3832c9064866934bb1b0416a01bd2021-03-01T00:00:00Zhttp://ws.iwaponline.com/content/21/2/648https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798Baseflow is crucial to maintaining river flow during low-rainfall periods. The baseflow estimation is important to water supply and ecological environmental protection in the Yellow River Basin (YRB), China. This paper comprehensively assessed the applicability of four single-parameter digital filtering, recursive digital filtering, and HYSEP (streamflow hydrograph separation) methods across four typical catchments in the Yellow River Basin: the Zuli River Basin, the Kuye River Basin, the Tuwei River Basin, and the Jingle sub-basin. We also investigated annual and monthly variations in baseflow. We found the standard deviation and coefficient of variation of baseflow index through recursive digital filter were relatively small. And the baseflow process line was smoother and more reasonable in typical year and typical storm-flood events, which conformed to the damping and hysteresis effect of the underlying surface. Thus the recursive digital filter method had the best performance, which was recommended for baseflow separation in the YRB. The estimated baseflow index of typical basins were between 0.354 and 0.502. In addition, inter-annual baseflow showed a decreasing trend and intra-annual baseflow was characterized by uneven distribution, which was subject to the characteristics of each basin. HIGHLIGHTS The evolution of baseflow in the typical catchments in the YRB was investigated by various methods.; The recursive digital filter method is an effective method for baseflow separation in the YRB.;Caihong HuDong ZhaoShengqi JianIWA Publishingarticleannual runoffbaseflow indexbaseflow separationdaily runoffdigital filteryellow river basinWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 2, Pp 648-667 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	annual runoff baseflow index baseflow separation daily runoff digital filter yellow river basin Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	annual runoff baseflow index baseflow separation daily runoff digital filter yellow river basin Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Caihong Hu Dong Zhao Shengqi Jian Baseflow estimation in typical catchments in the Yellow River Basin, China
description	Baseflow is crucial to maintaining river flow during low-rainfall periods. The baseflow estimation is important to water supply and ecological environmental protection in the Yellow River Basin (YRB), China. This paper comprehensively assessed the applicability of four single-parameter digital filtering, recursive digital filtering, and HYSEP (streamflow hydrograph separation) methods across four typical catchments in the Yellow River Basin: the Zuli River Basin, the Kuye River Basin, the Tuwei River Basin, and the Jingle sub-basin. We also investigated annual and monthly variations in baseflow. We found the standard deviation and coefficient of variation of baseflow index through recursive digital filter were relatively small. And the baseflow process line was smoother and more reasonable in typical year and typical storm-flood events, which conformed to the damping and hysteresis effect of the underlying surface. Thus the recursive digital filter method had the best performance, which was recommended for baseflow separation in the YRB. The estimated baseflow index of typical basins were between 0.354 and 0.502. In addition, inter-annual baseflow showed a decreasing trend and intra-annual baseflow was characterized by uneven distribution, which was subject to the characteristics of each basin. HIGHLIGHTS The evolution of baseflow in the typical catchments in the YRB was investigated by various methods.; The recursive digital filter method is an effective method for baseflow separation in the YRB.;
format	article
author	Caihong Hu Dong Zhao Shengqi Jian
author_facet	Caihong Hu Dong Zhao Shengqi Jian
author_sort	Caihong Hu
title	Baseflow estimation in typical catchments in the Yellow River Basin, China
title_short	Baseflow estimation in typical catchments in the Yellow River Basin, China
title_full	Baseflow estimation in typical catchments in the Yellow River Basin, China
title_fullStr	Baseflow estimation in typical catchments in the Yellow River Basin, China
title_full_unstemmed	Baseflow estimation in typical catchments in the Yellow River Basin, China
title_sort	baseflow estimation in typical catchments in the yellow river basin, china
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/d35c3832c9064866934bb1b0416a01bd
work_keys_str_mv	AT caihonghu baseflowestimationintypicalcatchmentsintheyellowriverbasinchina AT dongzhao baseflowestimationintypicalcatchmentsintheyellowriverbasinchina AT shengqijian baseflowestimationintypicalcatchmentsintheyellowriverbasinchina
_version_	1718443822339325952

Baseflow estimation in typical catchments in the Yellow River Basin, China

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