1. A device comprising: an image data receiving component operable to receive multiband image data of a geographic region; a vegetation index generation component operable to generate a vegetation index based on the received multiband image data; a spatial structure variance generation component operable to generate a spatial structure variance image band based on the received multiband image data; a classification component operable to generate a land cover classification based on the received multiband image data, the vegetation index and the spatial structure variance image band; and a water budget component operable to generate a water budget of a portion of the geographic region based on the land cover classification.