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787 datasets

Annual Precipitation Data for Northern California 1944-Current

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: CSV, PDF

The California Department of Water Resources (DWR), Northern Region Office (NRO), maintains 33 precipitation stations that were installed starting in ...

IWFM-IDC Users Group Meeting (12/18/2019)

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: PDF

Presentations given in the IWFM-IDC Users Group Meeting held on December 18, 2019. Bay-Delta Office of DWR develops, maintains and provides technical ...

CalSim 3.0 Release

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: ZIP, PDF

CalSim 3.0 Release to the public...

California Aqueduct Subsidence Study

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: PDF, XLSX

California Aqueduct Subsidence Study. San Luis Field Division, and San Joaquin Field Division...

i10 APIS FlightCoverage

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This is a polygon feature class that models the flight coverage of available DWR historic aerial photography. The coordinate system utilized for this ...

i10 APIS FlightLines

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This is a line feature class that models the flight lines of available DWR historic aerial photography. The coordinate system utilized for this featur...

i10 APIS PhotoCenters

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This is a point feature class that models the centroid locations of individual images of available DWR historic aerial photography. The coordinate sys...

i15 Parcels CVFPB

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset is a compilation of ownership rights represented as parcels owned by the Sacramento & San Joaquin Drainage District of the State of C...

i08 GroundwaterDepthSeasonal Contours

Published by: California Department of Water Resources
Last updated: Wednesday, May 27, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This dataset depicts contours of estimated change in groundwater piezometric surfaces in the unconfined or uppermost semi-confined aquifers, between t...

San Francisco Bay and Sacramento-San Joaquin Delta DEM for Modeling, Version 4.3

Published by: California Department of Water Resources
Last updated: Tuesday, May 26, 2026
File types: PNG, .ZIP, ZIP

# Citation and Main Description: This product is described in Chapter 5 of the 2018 DWR Delta Modeling Section annual report, produced jointly with...