Our GIS based Agriculture Water Model is of 5 X 5 arc minutes (approximately 9 X 9 kilometers at the equator) resolution. The model computes crop water consumption based on FAO methodology and crop data from Monfreda et al. The model calculates both GREEN water (i.e. soil moisture and rainwater use) as well as BLUE water (i.e. irrigation) use.
Our agriculture water model also estimates total crop water withdrawal considering factors such as irrigation efficiency, farming techniques, area equipped for irrigation, irrigation method, use of micro-irrigation, groundwater and surface water availability.