The Land and Water Use Program collects land use data and develops water use estimates used in a variety of statewide water planning efforts, including future water use projection, water use efficiency measure evaluation, groundwater model development, and water transfers. The Program's activities include conducting surveys of agricultural, urban, and environmental land uses; collecting weather and other data required to make crop and landscape water use estimates; and developing annual estimates of land and water uses on a regional basis.
Land and Water Use Program functional areas are introduced below with links for more information.
Agricultural Land and Water Use Estimates
The Department of Water Resources estimates irrigated crop acreages, crop evapotranspiration (ETc), evapotranspiration of applied water (ETAW), effective precipitation (EP) and applied water (AW) for 20 crop categories for each year for sub-watershed areas within each county ... More Info
Agricultural Water Use Models
The Department of Water Resources and the University of California, Davis have collaborated to develop three agricultural water use models: Consumptive Use Program PLUS, the original Consumptive Use Program (CUP), and the Simulation of Evapotranspiration of Applied Water (SIMETAW). ... More Info
California Seasonal Application Efficiency Program
The Department of Water Resources and the University of California, Davis have developed the California Seasonal Application Efficiency Program to assess how efficiently water is being applied within the California irrigated land. ... More Info