Folders: ROOT > ScienceBase Catalog > USGS California Water Science Center > CAWSC Data Releases (Published) > CVHM2: Central Valley Hydrologic Model version 2 > Central Valley Hydrologic Model version 2 (CVHM2): Land Use Properties (ver. 3.0, October 2023) ( Show all descendants )
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ROOT _ScienceBase Catalog __USGS California Water Science Center ___CAWSC Data Releases (Published) ____CVHM2: Central Valley Hydrologic Model version 2 _____Central Valley Hydrologic Model version 2 (CVHM2): Land Use Properties (ver. 3.0, October 2023) Filters
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The shapefile in this data release is the updated Central Valley Hydrologic Model (CVHM2) model grid cells with yearly land use from 1921 to 2019. Historical land use data shows the Central Valley land use prior to agricultural development. The rise of agriculture in the Central Valley is visible over time in this data set. Existing land use maps covering the Central Valley were used as sources and were assigned to model grids cells for their observed land use year. This source data was used to estimate land use over time for years where no land use map was available. This was accomplished by comparing land use cells between two years where source data is available. Cells where there is no land use change remain...
This digital dataset contains the soil data for the updated Central Valley Hydrologic Model (CVHM2). The soil data is based on California Department of Water Resource’s C2VSim’s fine grid model soil curve number data set (C2VSimFG Version 1.0 - Datasets; CNRA, 2011). These values were originally obtained from the U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) Soil Survey Geographic Database (SSURGO) soil map of the State of California (USDA, 2004), and then an area-weighted average value for each hydrologic soil group within each subregion was calculated to the C2VSim element. Curve number values obtained from SSURGO were converted for use in C2VSimFG. To translate the curve...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: California,
Central Valley,
Curve Number,
SSURGO,
Soil Data,
This digital dataset contains information about the farm process parameter values are used as input to the updated Central Valley Hydrologic Model (CVHM2), which consists of 24 land use types and the corresponding monthly crop coefficient for each land use type. Land use types, initial rooting depths, and initial crop coefficients were modified from Faunt and Others (2009).
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