SEBAL North America (SNA)
WaterWatch's subsidiary in the United States is SEBAL North America. SEBAL North America is the sole licensed user of SEBAL, the Surface Energy Balance Algorithm for Land, in the United States, Canada and Mexico.
SEBAL North America is the source of quantitative, spatially discrete water management information derived from remotely-sensed satellite data. Please visit their website for more information.
Controlling Farmers' Water Rights in Idaho, USA
Managing water rights and irrigation on the Snake River Plain and tributary basins presents a challenge to Idaho Department of Water Resources (IDWR). Water for irrigation comes from surface and ground sources. For various historical reasons, the use of surface water has been directly measured and regulated by IDWR while the use of ground water has not. This situation began to change in 1995 when the Water Measurement Information System Program was established within IDWR to measure ground-water use. IDWR has dedicated considerable resources to water measurement, including three full-time positions to monitor about 5,000 points of diversion, mostly wells. As useful as these data are, they do not provide all the information necessary for effective management of the resource. Information regarding the actual evapotranspiration (ETa) or consumed fraction of diversions is needed. The SEBAL model of WaterWatch is used to determine actual evapotranspiration.