I'm interested in improving on current single source models of evapotranspiration which use mostly thermal imaging for modeling ET. There must be more information from imaging spectroscopy or other remote sensing platforms which can help reduce the uncertainty of these models?
http://onlinelibrary.wiley.com/doi/10.1002/hyp.8368/pdf
I don't know if this will help
I think there two directions you could follow. One is to improve the ET model, making it to realistically estimate ET. The other is improve the accuracy of inputs derived from satellite imaging spectroscopy.
Adding remotely sensed data of vegetation type, canopy density, and biomass obtained with hyperspectral/multispectral imagers would add an important input to your models in addition to the thermal IR data. Microwave radiometer data on soil moisture should also be useful. The vegetative cover can be further characterized with radar and lidar data. I realize that it is expensive to obtain all these data types, but
thermal infrared alone is not sufficient for your purpose.
Please send more details so I could provide more specific advice.
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