Assessment the relationship between soil evaporation and soil moisture using Remote Sensing Penman-Monteith model
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Abstract:
Soil moisture content is an important factor affecting soil evaporation Analyzing the influence of soil moisture variation on soil evaporation has a positive effect on water resource management. The remote sensing Penman-Monteith (P-M) model is a remote sensing based method for evapotranspiration simulation and can calculate soil evaporation and vegetation transpiration separately. This study calculates the evapotranspiration for Wangdu station and investigates the effects of soil moisture on the model parameters and soil evaporation. The results showed that the model has a good performance at Wangdu station with a value of NSE (0. 559). There is an uncertain relationship between soil moisture and model parameters. Comparing with the vegetation transpiration, the consistency of soil moisture and soil evaporation is stronger in the simulation period for this particular research.