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416 datasets

Bay-Delta SCHISM Atmospheric Collection v2.0

Published by: California Department of Water Resources
Last updated: Monday, January 26, 2026
File types: TAR.GZ

This dataset collects together collated and interpolated data required to run schism and are formatted for use in the model. SCHISM requires atmopheri...

Bay-Delta SCHISM Atmospheric Collection v1.0 [SUPERSEDED]

Published by: California Department of Water Resources
Last updated: Monday, January 26, 2026
File types: GZIP, CSV

This dataset is SUPERSEDED. Unless you have a particular motive and really know what you are doing, please use the newer version: https://data.cnra.ca...

South Delta Monitoring Special Studies (MSS) Modeling Inputs and Selected Outputs

Published by: California Department of Water Resources
Last updated: Monday, January 26, 2026
File types: ZIP, DOCX, ZIP, PARQUET, YML, YML, DOCX, PARQUET, PYTHON

This dataset includes the MSS version of model inputs and outputs for the Delta Simulation Model 2 and Bay-Delta SCHISM. To perform DSM2 simulation...

i12 Flood Bypasses 2012

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

This feature class is a vector file containing polygons that represent the flood control bypasses of the Sacramento and San Joaquin Rivers. Bypasses c...

i12 Flood Bypasses 2014

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

This feature class is a vector file containing polygons that represent the flood control bypasses of the Sacramento and San Joaquin Rivers. Bypasses c...

IWFM Demand Calculator (IDC) - Version 2015.0.68

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

IDC (IWFM Demand Calculator) - Version 2015.0.68 (released April 23, 2018)...

IWFM Demand Calculator (IDC) - Version 2015.0.77

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

IDC (IWFM Demand Calculator) - Version 2015.0.77 (released March 20, 2019)...

i16 Census Tract DisadvantagedCommunities 2023

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

The IRWM web based DAC mapping tool uses this GIS layer. Created by joining ACS 2019-2023 5 year estimates to the 2020 Census Tracts feature class. Th...

i16 Census Tract EconomicallyDistressedAreas 2023

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

The IRWM web based EDA mapping tool uses this GIS layer. Created by joining ACS 2019-2023 5 year estimates to the 2020 Census Tract feature class. The...

i16 Census BlockGroup EconomicallyDistressedAreas 2023

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

This is a copy of the statewide Census Block Group GIS Tiger file. The IRWM web based EDA mapping tool uses this GIS layer. Created by joining ACS 201...