【摘 要】
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Daily radiation and meteorological data were collected at an alpine marsh meadow site in the Three-river Headwater Region (THR).Use them to assess radiation models determined after comparing the perfo
【机 构】
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Qinghai Institute of Meteorological Science, China
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Daily radiation and meteorological data were collected at an alpine marsh meadow site in the Three-river Headwater Region (THR).Use them to assess radiation models determined after comparing the performance between Zuo model and the model recommend by FAO56 P-M.Four methods,FAO56 P-M,Priestley-Taylor,Hargreaves,and Makkink methods were applied to determine daily reference evapotranspiration (ETr) for the growing season and built the empirical models for estimating daily actual evapotranspiration (ETa) between ETr derived from the four methods and evapotranspiration derived from Bowen Ratio method on alpine marsh meadow in this region.After comparing the performance of four empirical models by RMSE,MAE and AI,it showed these models all can get the better estimated daily ETa on alpine marsh meadow in this region,and the best performance of the FAO56 P-M,Makkink empirical model were better than Priestley-Taylor and Hargreaves model.
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