摘要
尝试将谐波法和双源遥感模型TSEB耦合起来模拟表层土壤含水率,并利用两个稀疏植被站点的数据进行了检验。结果表明,当TSEB模型模拟的显热通量误差较大时,耦合方法模拟的表层土壤含水率误差也较大,进而使得土壤热通量与实测值的偏差较大。但是由于土壤热通量分担了部分显热通量的估算误差,潜热通量的模拟精度明显提高,土壤组分对地表总潜热通量的贡献越大,这种提高越显著。
A harmonic analysis method was coupled with the two-source energy balance （TSEB） model in this paper. The coupled method was tested. When the difference between modeled sensible heat flux and observations is large, there is obvious bias with the simulated soil surface water content leading errors with the simulated soil heat flux. At the same time, estimated latent heat flux by the coupled model is improved compared with that of TSEB model. With the proportion of soil evaporation to the total evapotranspiration becoming larger, the improvement becomes more notable.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2009年第6期706-710,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(50721140161)
关键词
土壤热通量
谐波法
蒸散发
遥感
TSEB
soil heat flux
harmonic analysis
evapotranspiration
remote sensing
TSEB
