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Evaluating the added value of multi-variable calibration of SWAT with remotely sensed evapotranspiration data for improving hydrological modeling

文献类型：期刊论文

作者Shah, Suraj2; Duan, Zheng1; Song, Xianfeng2; Li, Runkui2,3; Mao, Huihui2; Liu, Junzhi4; Ma, Tianxiao5; Wang, Mingyu2
刊名JOURNAL OF HYDROLOGY
出版日期2021-12-01
卷号603页码:17
关键词Equifinality Evapotranspiration MODIS SWAT Repeated measure design Stability Manning Whitney U test
ISSN号0022-1694
DOI10.1016/j.jhydrol.2021.127046
通讯作者Song, Xianfeng(xfsong@ucas.ac.cn) ; Li, Runkui(lirk@ucas.ac.cn)
英文摘要Hydrological processes in a watershed consist of multiple sub-processes (such as plant growth, evapotranspiration, water yield, and soil-water balance) that have complex interactions. The common practice of calibrating hydrological models against only a single variable (e.g., streamflow) can lead to parameter uncertainty (also known as equifinality), resulting in significant uncertainties in the representation and simulation of sub-processes. As multi-variable calibration can be a potential solution to this issue, we tested the integration of spatially and temporally gridded remotely sensed evapotranspiration (RS-ET) data with the Soil and Water Assessment Tool (SWAT) hydrological model. This approach was intended to reduce equifinality by enhancing related hydrological sub-processes in both space and time rather than improving the evaluation metrics at the streamflow outlet. We further introduced the principle of repeated measure design in the calibration process, where the SWAT was calibrated under two different schemes: Scheme1 (using only streamflow data) and Scheme2 (using both RS-ET and streamflow data). The model's performance was evaluated using the concept of stability at multiple spatial scales (basin outlet, sub-basins, and hydrological response units) and aspects (different model outputs and most sensitive calibrated parameters). The significance of the difference between the stabilities produced by the two schemes was estimated using the Mann-Whitney U test. Testing this approach in Meichuan Basin (China) showed that Scheme2 substantially reduced equifinality for calibrated parameters and model outputs compared to Scheme1. In addition, the model solutions and outputs for Scheme2 were significantly different from Scheme1. Our results demonstrate the added value of using increasingly available open-access RS-ET data for improving hydrological model calibration.
WOS关键词UNCERTAINTY ; BASIN ; WATER ; PRECIPITATION ; STREAMFLOW ; BALANCE ; IDENTIFICATION ; EQUIFINALITY ; EVAPORATION ; PERFORMANCE
资助项目National Key Research and Development Program of China[2020YFC1807103] ; National Key Research and Development Program of China[2017YFB0503702] ; 973 Program[2013CB733402] ; Key Deployment Project of Center for Ocean Mega-Research of Science, Chinese Academy of Sciences[COMS2019Q15] ; Fundamental Research Funds for the Central Universities[E0E48914X2] ; National Natural Science Foundation of China[41771435] ; National Natural Science Foundation of China[40771167] ; Crafoord Foundation[20200595] ; Crafoord Foundation[20210552]
WOS研究方向Engineering ; Geology ; Water Resources
语种英语
WOS记录号WOS:000711024300019
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; 973 Program ; Key Deployment Project of Center for Ocean Mega-Research of Science, Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Crafoord Foundation
源URL[http://ir.igsnrr.ac.cn/handle/311030/168309]  
专题中国科学院地理科学与资源研究所
通讯作者Song, Xianfeng; Li, Runkui
作者单位1.Lund Univ, Dept Phys Geog & Ecosyst Sci, S-22362 Lund, Sweden
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
4.Lanzhou Univ, Ctr Pan Third Pole Environm, Lanzhou 730000, Peoples R China
5.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Shah, Suraj,Duan, Zheng,Song, Xianfeng,et al. Evaluating the added value of multi-variable calibration of SWAT with remotely sensed evapotranspiration data for improving hydrological modeling[J]. JOURNAL OF HYDROLOGY,2021,603:17.
APA Shah, Suraj.,Duan, Zheng.,Song, Xianfeng.,Li, Runkui.,Mao, Huihui.,...&Wang, Mingyu.(2021).Evaluating the added value of multi-variable calibration of SWAT with remotely sensed evapotranspiration data for improving hydrological modeling.JOURNAL OF HYDROLOGY,603,17.
MLA Shah, Suraj,et al."Evaluating the added value of multi-variable calibration of SWAT with remotely sensed evapotranspiration data for improving hydrological modeling".JOURNAL OF HYDROLOGY 603(2021):17.

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来源：地理科学与资源研究所

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