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State Water Resources Control Board demonstrates open-source LSPC watershed modeling to support drought planning
Summary
Board staff demonstrated an open-source Loading Simulation Program in C++ (LSPC) workflow that pairs calibrated hydrologic models with cleaned diversion records to estimate water supply and demand across 18 California watersheds; a $15 million contract with Paradigm Environmental was cited to expand work and draft model reports will be posted for public review.
State Water Resources Control Board staff demonstrated an open-source hydrologic modeling workflow designed to give state and local water managers a consistent baseline for planning and drought response.
"I'm a program manager for our supply and demand assessment program," said Philip Denton, introducing the project and its aim to pair calibrated Loading Simulation Program in C++ (LSPC) models with cleaned diversion data to show where water is available and who is using it. Denton said the program produces data and tools intended to inform "efficient, equitable water allocations" during shortages.
Peter Haupp, an environmental scientist in the Division of Water Rights, walked through the technical approach used to simulate…
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