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A Physically Based Model of a Two-Pass Digital Filter for Separating Groundwater Runoff From Streamflow Time Series

文献类型：期刊论文

作者Pozdniakov, Sergey P.2; Wang, Ping1,3; Grinevsky, Sergey O.2; Frolova, Natalia L.4
刊名WATER RESOURCES RESEARCH
出版日期2022-03-01
卷号58期号:3页码:23
ISSN号0043-1397
DOI10.1029/2021WR031333
通讯作者Wang, Ping(wangping@igsnrr.ac.cn)
英文摘要Groundwater runoff is an important component of river runoff and is sensitive to climate change. However, it is difficult to differentiate groundwater runoff from total river runoff by current base flow separation methods. Here, we propose a physically based model with a two-pass digital filter for separating groundwater runoff from streamflow time series. The proposed method is based on the fundamental theory of surface-groundwater interactions under a variable groundwater recharge process that is highly associated with river stages. Our results show that the groundwater flow recession constant and the base flow recession constant can be determined separately by performing variogram analysis on long-term streamflow time series data. For watersheds with areas of 10(3)-10(4) km(2), the groundwater flow recession constant differs from the typical values of the base flow recession constant by an order of magnitude or more. Therefore, the developed method can be used to quantify groundwater runoff dynamics on a temporal scale spanning tens of years. Unlike other approaches to base flow separation, our proposed method can reveal the effects of climate change on groundwater runoff.
WOS关键词AUTOMATED BASEFLOW SEPARATION ; FLOW ; RECESSION ; RECHARGE ; RIVERS
资助项目National Natural Science Foundation of China (NSFC)-Russian Science Foundation (RSF)[21-47-00008] ; National Natural Science Foundation of China (NSFC)-Russian Science Foundation (RSF)[42061134017] ; Special Exchange Program of the Chinese Academy of Sciences[2022-2023]
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种英语
WOS记录号WOS:000834099100033
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China (NSFC)-Russian Science Foundation (RSF) ; Special Exchange Program of the Chinese Academy of Sciences
源URL[http://ir.igsnrr.ac.cn/handle/311030/181657]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Ping
作者单位1.Univ Chinese Acad Sci, Beijing, Peoples R China
2.Lomonosov Moscow State Univ, Dept Hydrogeol, Moscow, Russia
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Relates Land Surface Proc, Beijing, Peoples R China
4.Lomonosov Moscow State Univ, Dept Land Hydrol, Moscow, Russia
推荐引用方式
GB/T 7714		 Pozdniakov, Sergey P.,Wang, Ping,Grinevsky, Sergey O.,et al. A Physically Based Model of a Two-Pass Digital Filter for Separating Groundwater Runoff From Streamflow Time Series[J]. WATER RESOURCES RESEARCH,2022,58(3):23.
APA Pozdniakov, Sergey P.,Wang, Ping,Grinevsky, Sergey O.,&Frolova, Natalia L..(2022).A Physically Based Model of a Two-Pass Digital Filter for Separating Groundwater Runoff From Streamflow Time Series.WATER RESOURCES RESEARCH,58(3),23.
MLA Pozdniakov, Sergey P.,et al."A Physically Based Model of a Two-Pass Digital Filter for Separating Groundwater Runoff From Streamflow Time Series".WATER RESOURCES RESEARCH 58.3(2022):23.

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来源：地理科学与资源研究所

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