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Applicability Evaluation of Potential Evapotranspiration Estimation Methods in the Red River Basin, China
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Ji-hui ZHANG1a, Jun-xu CHEN1a, 1b, Yun-jiang FAN1a, Jian-hang TONG1a, Fu-rong YANG1a, Zhi-wen HU2, Bi-tao SHAO3
Water Resources and Power | 2023, 41(7) : 8 - 11
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Water Resources and Power | 2023, 41(7): 8-11
• HYDROLOGY，WATER RESOURCES AND ENVIRONMENT •
Applicability Evaluation of Potential Evapotranspiration Estimation Methods in the Red River Basin, China
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Ji-hui ZHANG1a, Jun-xu CHEN1a, 1b, Yun-jiang FAN1a, Jian-hang TONG1a, Fu-rong YANG1a, Zhi-wen HU2, Bi-tao SHAO3
Affiliations
  • 1a.School of Earth Sciences, Yunnan University, Kunming 650500, China
  • 1b.International Joint Research Center for Karstology, Yunnan University, Kunming 650500, China
  • 2.PowerChina Kunming Engineering Corporation Limited, Kunming 650000, China
  • 3.Yunnan Surveying and Mapping Institute, Kunming 650011, China
Published: 2023-07-25 doi: 10.20040/j.cnki.1000-7709.2023.20221632
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Evapotranspiration is a key process of energy exchange in the terrestrial-atmospheric system, and the selection of a suitable method for its accurate estimation is the basis and challenges to revealing the energy exchange process and the mechanism of Land-Atmosphere coupling under complex topographic conditions. Based on 60 years of meteorological data from 25 stations in the Red River Basin, China, the FAO56-Penman-Monteith method was used as a benchmark, and the MK statistical tests and Taylor diagrams were used to evaluate 8 potential evapotranspiration (PET) estimation methods from five aspeacts. The results show that the radiative methods Priestley-Taylor and Hargreaves had the best applicability, their results were closest to FAO (R2≈0.9); The temperature methods McCloud and Linacre were followed; The mass transport class methods Rohwer and Penman were worse. This study not only provided a highly adaptive PET estimation method for the Red River Basin, China, but also revealed the spatial and temporal distribution characteristics of the PET.

potential evapotranspiration  /  radiation method  /  temperature method  /  mass transport method  /  Red River Basin
Ji-hui ZHANG, Jun-xu CHEN, Yun-jiang FAN, Jian-hang TONG, Fu-rong YANG, Zhi-wen HU, Bi-tao SHAO. Applicability Evaluation of Potential Evapotranspiration Estimation Methods in the Red River Basin, China[J]. Water Resources and Power, 2023 , 41 (7) : 8 -11 . DOI: 10.20040/j.cnki.1000-7709.2023.20221632
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Year 2023 volume 41 Issue 7
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221632
  • Receive Date：2022-08-08
  • Online Date：2026-01-28
  • Published：2023-07-25
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History
  • Received：2022-08-08
  • Revised：2022-09-22
Funding
Affiliations
    1a.School of Earth Sciences, Yunnan University, Kunming 650500, China
    1b.International Joint Research Center for Karstology, Yunnan University, Kunming 650500, China
    2.PowerChina Kunming Engineering Corporation Limited, Kunming 650000, China
    3.Yunnan Surveying and Mapping Institute, Kunming 650011, China
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光柄菇属 Pluteus 5 2.39
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栓菌属 Trametes 5 2.39
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