【摘要】 该文将估算区域蒸散发的方法分为两大类加以综述,一类是以水文学和气象学为主,如水量平衡原理、互补相关理论、SPAC理论、参考作物腾发量思想等方法;一类是以遥感技术为主,如统计经验法、能量余项法、数值模型、全遥感信息模型等方法。然后概述地面测定计算方法中比较有代表性的蒸渗仪法、波文比仪法、涡度相关法和闪烁通量仪法。最后简要分析遥感估算区域蒸散发存在的主要问题和展望区域蒸散发研究的趋势。更多还原

【Abstract】 The paper classifies the methods of estimating regional evapotranspiration into two categories.The one category belongs to hydrology and meteorology,such as water balance,complementary relationship,SPAC, reference evapotranspiration;the other category belongs to remote sensing technique,such as semiempirical model,energy balance,numerical model,absolute RS model.Then several representative ground measuring methods like lysimeter method,Bowen method,eddy correlation method,scintillometer method were summarized.Finally,some existent problems on estimating regional evapotranspiration by remote sensing were analyzed in brief and the research tendency on estimating regional evapotranspiration was prospected.更多还原