Welcome to SEBAL North America (SNA), your source of quantitative, spatially discrete water management information derived from remotely-sensed satellite data. In a World of increasing competition for water resources, The Surface Energy Balance Algorithm for Land (SEBAL) provides an accurate, timely and cost-effective, unbiased assessment of actual water consumption. Sample data can be found on our PRODUCTS PAGE The maps of California’s Central Valley provided below demonstrate the capability of SEBAL® (version 2009) as a near-real time tool for monitoring of consumptive water use and crop production. (Click on the maps to view in higher resolution) Actual Evapotranspiration Total Dry Biomass Production SEBAL Crop Coefficients These maps quantify the spatial distribution and amount of actual evapotranspiration (ET), total biomass production and crop coefficients for California’s Central Valley . The calculations are performed with the SEBAL® model (version 2009) using MODIS satellite imagery and CIMIS weather data. NOTE: As of October 11, 2010, generation of the weekly operational SEBAL products for the Central Valley has been temporarily suspended. Results from 2009 and 2010 can be accessed by clicking HERE. The table below summarizes the data products that are available for each week. No. Product Formats Units 1 Actual ET Map,Table, Google Earth Overlay Inches/day 2 Total Dry Biomass Production Map,Table, Google Earth Overlay Pounds/acre/day 3 SEBAL Crop Coefficients Map,Table, Google Earth Overlay Unitless For more information and to download/access these products, click here. These data are also available as georegistered grids to allow for customized, detailed analysis of ET and biomass production in specific areas over time. SNA is the sole licensed user of SEBAL, the Surface Energy Balance Algorithm for Land, in the United States, Canada and Mexico. Pixel by pixel,we compute water consumption and biomass production in natural, urban and agricultural environments. In contrast to other water consumption calculation methods, SEBAL computes actual evapotranspiration (ET), reflecting the effects of water availability, crop vigor, management practices, and all of the other factors that influence ET from the Earth's surface. SEBAL North America 1772 Picasso Avenue Suite E Davis, California Phone: (+1)-530-757 9200