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Central Valley Hydrologic Model version 2 (CVHM2): Surface Water Network for Water Years 1922 - 2019 (ver. 2.0, December 2023)

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2023-12-11T00:00:00Z
This digital dataset contains the monthly inflows and diversions to the surface-water network in the updated Central Valley Hydrologic Model (CVHM2) for water years 1922-2019. The surface-water network simulates the Central Valley’s complex conveyance network through the Streamflow Routing Package (SFR2) and the Farm-Process (FMP4) at 65 inflow locations with 271 stream segments and 13 bifurcations, and 571 diversion locations providing 564 of semi-routed diversions and 7 non-routed diversions. The semi-routed deliveries are routed through the simulated surface-water network, while the non-routed delivery is simulated through linkages between the SFR2 and FMP4 packages in MODFLOW-OWHM. Surface water data for CVHM2 is presented in two child items: inflow and bifurcation names, locations, and magnitude; diversion names, locations, and magnitude for semi-routed and non-routed diversions. Each child item contains metadata, a shapefile, and a csv file containing the data.

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