Automated Water Resources Tracking System

Welcome to the Automated Surface Water Tracking System – committed to providing up-to-date and accurate assessments of the distribution of open surface water to inform water management in the Central Valley

  • The Central Valley is a nexus for water resources in California, draining the Sacramento and San Joaquin River watersheds.
  • The distribution of water in the Central Valley is highly managed and driven by an extensive network of canals, levees, and pumps developed as part of the Central Valley Project and the California State Water Project in the early to mid-20th Century.
  • Future conditions will challenge California’s water system and require innovative adaptation strategies.
  • Water, wetland, and conservation incentive program managers need data in near real-time to adaptively make decisions about how to allocate dynamic water availability to meet the needs of wildlife (particularly in times of drought) in order to maximize return on investment.
  • Despite the importance of water resources in the Central Valley, spatially explicit empirical data on the total extent and distribution of open surface water in the region until recently have not been available.
  • Download the most recent (and historic) data here!

Surface Water Probability