Evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation: Application in the upper Han River Basin
Study region: The Baihe River Basin located in the upper Han River, central China. Study focus: Potential evapotranspiration (PET) is commonly utilized as the forcing data for hydrological simulation. The lack of observations for estimating PET usually limits the calculation of evapotranspiration in...
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Elsevier
2025-02-01
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| Series: | Journal of Hydrology: Regional Studies |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214581824004634 |
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| author | Minxin Li Lei Zou Jun Xia Hui Cao Hairong Zhang Benjun Jia Jiarui Yu |
| author_facet | Minxin Li Lei Zou Jun Xia Hui Cao Hairong Zhang Benjun Jia Jiarui Yu |
| author_sort | Minxin Li |
| collection | DOAJ |
| description | Study region: The Baihe River Basin located in the upper Han River, central China. Study focus: Potential evapotranspiration (PET) is commonly utilized as the forcing data for hydrological simulation. The lack of observations for estimating PET usually limits the calculation of evapotranspiration in hydrological models. Fortunately, gridded PET products with high data availability provide a great opportunity for hydrological simulation. This study assessed the accuracy of five gridded PET products against the gauge-based data. The Distributed Time Variant Gain Model (DTVGM) was modified to evaluate the performance of these five PET products in streamflow simulation. Additionally, the effect of different PET inputs on simulated runoff components, evapotranspiration, and soil moisture were investigated. New hydrological insights for the region: The results indicate that there are large discrepancies in spatial-temporal distribution of five PET products. Among selected products, GLEAM-b is most consistent with the gauge-based PET in the study region. For the streamflow simulation, five gridded PET products can achieve good performance with the Nash-Sutcliffe efficiency (NSE) values exceeding 0.75 in the validation period. This finding demonstrates the feasibility of using gridded PET products for streamflow simulation. Moreover, GLEAM-b performs better than other products in streamflow simulation according to the evaluation indicators. For simulated runoff components and water balance components, baseflow and evapotranspiration are more sensitive to different PET inputs. |
| format | Article |
| id | doaj-art-7549760662cb454b8f334caa1fe62b63 |
| institution | Kabale University |
| issn | 2214-5818 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Hydrology: Regional Studies |
| spelling | doaj-art-7549760662cb454b8f334caa1fe62b632025-01-22T05:42:05ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102114Evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation: Application in the upper Han River BasinMinxin Li0Lei Zou1Jun Xia2Hui Cao3Hairong Zhang4Benjun Jia5Jiarui Yu6State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China; Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China; Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; Corresponding author at: State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China.State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China; Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaHubei Key Laboratory of Intelligent Yangtze and Hydroelectric Science, China Yangtze Power Co., Ltd., Yichang, Hubei 443000, ChinaHubei Key Laboratory of Intelligent Yangtze and Hydroelectric Science, China Yangtze Power Co., Ltd., Yichang, Hubei 443000, ChinaHubei Key Laboratory of Intelligent Yangtze and Hydroelectric Science, China Yangtze Power Co., Ltd., Yichang, Hubei 443000, ChinaKey Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaStudy region: The Baihe River Basin located in the upper Han River, central China. Study focus: Potential evapotranspiration (PET) is commonly utilized as the forcing data for hydrological simulation. The lack of observations for estimating PET usually limits the calculation of evapotranspiration in hydrological models. Fortunately, gridded PET products with high data availability provide a great opportunity for hydrological simulation. This study assessed the accuracy of five gridded PET products against the gauge-based data. The Distributed Time Variant Gain Model (DTVGM) was modified to evaluate the performance of these five PET products in streamflow simulation. Additionally, the effect of different PET inputs on simulated runoff components, evapotranspiration, and soil moisture were investigated. New hydrological insights for the region: The results indicate that there are large discrepancies in spatial-temporal distribution of five PET products. Among selected products, GLEAM-b is most consistent with the gauge-based PET in the study region. For the streamflow simulation, five gridded PET products can achieve good performance with the Nash-Sutcliffe efficiency (NSE) values exceeding 0.75 in the validation period. This finding demonstrates the feasibility of using gridded PET products for streamflow simulation. Moreover, GLEAM-b performs better than other products in streamflow simulation according to the evaluation indicators. For simulated runoff components and water balance components, baseflow and evapotranspiration are more sensitive to different PET inputs.http://www.sciencedirect.com/science/article/pii/S2214581824004634Potential evapotranspirationSpatial-temporal variationHydrological simulationDTVGMThe upper Han River Basin |
| spellingShingle | Minxin Li Lei Zou Jun Xia Hui Cao Hairong Zhang Benjun Jia Jiarui Yu Evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation: Application in the upper Han River Basin Journal of Hydrology: Regional Studies Potential evapotranspiration Spatial-temporal variation Hydrological simulation DTVGM The upper Han River Basin |
| title | Evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation: Application in the upper Han River Basin |
| title_full | Evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation: Application in the upper Han River Basin |
| title_fullStr | Evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation: Application in the upper Han River Basin |
| title_full_unstemmed | Evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation: Application in the upper Han River Basin |
| title_short | Evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation: Application in the upper Han River Basin |
| title_sort | evaluating the performance of five global gridded potential evapotranspiration products in hydrological simulation application in the upper han river basin |
| topic | Potential evapotranspiration Spatial-temporal variation Hydrological simulation DTVGM The upper Han River Basin |
| url | http://www.sciencedirect.com/science/article/pii/S2214581824004634 |
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