Dear all, I am using InVEST to simulate in a very simple way a watershed. Do you know how I can find a table with Kc for simple land use areas (urban, agricultural land, etc)?
On FAO papers I cpould find only Kc for specific crops.
Calculating Kc by Remote Sensing and agrometeorological stations using SAFER (Simple Algorithm for Evapotranspiration Retrieving), to obtain Kc in large scale. This algorithm is very easy and useful.
well Kc it is meant to be for a different crops ... as Kc is the ratio of evapotranspiration observed for the crop studied over that observed for the well calibrated reference crop under the same conditions ... and in FAO 56 is a plenty of examples ... I dont know if this link can help ...... http://ucanr.edu/sites/UrbanHort/Water_Use_of_Turfgrass_and_Landscape_Plant_Materials/Turfgrass_Crop_Coefficients_Kc/
If you have some observed actual ET data you can calibrate the Kc for the target ecosystem using the FAO's reference ET paper. i.e. ETa=Kc*ETref. But if such data used to calibration is not avaliable, I think some reference sould be able to provide you with appropriate Kc.