{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Claudia C. Faunt", "hasEmail": "mailto:ccfaunt@usgs.gov"}, "description": "This digital dataset contains the 9 major areas used to subdivide the Central Valley for the interpolation of the \npercentage of coarse-grained deposits into the texture model.  This texture model was used as input data for \nthe hydraulic properties portion of the Central Valley Hydrologic Model (CVHM).  The Central Valley encompasses \nan approximate 50,000 square-kilometer region of California. The complex hydrologic system of the Central \nValley is simulated using the USGS numerical modeling code MODFLOW-FMP (Schmid and others, 2006).  \nThis simulation is referred to here as the CVHM (Faunt, 2009). Utilizing MODFLOW-FMP, the CVHM simulates \ngroundwater and surface-water flow, irrigated agriculture, land subsidence, and other key processes in the Central \nValley on a monthly basis from 1961-2003.  The total active modeled area is 20,334 square-miles on a finite \ndifference grid comprising 441 rows and 98 columns. Slightly less than 50 percent of the cells are active. The \nCVHM model grid has a uniform horizontal discretization of 1x1 square mile and is oriented parallel to the valley \naxis, 34 degrees west of north (Faunt, 2009). In order to better characterize the aquifer-system deposits, lithologic \ndata from approximately 8,500 drillers' logs of boreholes ranging in depth from 12 to 3,000 feet below land surface \nwere compiled and analyzed. The percentage of coarse-grained sediment, or texture, then was computed for each \n50-foot depth interval of the drillers' logs. A 3-dimensional texture model was developed by interpolating the percentage \nof coarse-grained deposits onto a 1-mile spatial grid at 50-foot-depth intervals from land surface to 2,800 feet below \nland surface. The CVHM is the most recent regional-scale model of the Central Valley developed by the U.S. Geological \nSurvey (USGS).  The CVHM was developed as part of the USGS Groundwater Resources Program (see \"Foreword\", \nChapter A, page iii, for details).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9Y4MR92", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.c608e00e-c1ee-4403-8177-549daa48a10c.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_c608e00e-c1ee-4403-8177-549daa48a10c", "keyword": ["Alameda County", "Amador County", "Butte County", "CV-RASA", "Calaveras County", "California", "Central Valley", "Central Valley Aquifer", "Central Valley Hydrologic Model", "Central Valley, California", "Colusa County", "Contra Costa County", "El Dorado County", "Flow Model CVHM", "Fresno County", "Glenn County", "Groundwater Availability of the Central Valley Aquifer", "Humboldt County", "Kern County", "Kings County", "Lake County", "Madera County", "Mariposa County", "Mendocino County", "Merced County", "Monterey County", "Napa County", "Nevada County", "Placer County", "Sacramento County", "Sacramento Valley", "San Benito County", "San Joaquin County", "San Joaquin Valley", "San Luis Obispo County", "Santa Barbara County", "Santa Clara County", "Shasta County", "Solano County", "Sonoma County", "Stanislaus County", "Sutter County", "Tehama County", "Texture Model", "Trinity County", "Tulare County", "Tuolumne County", "USGS:c608e00e-c1ee-4403-8177-549daa48a10c", "Ventura County", "Yolo County", "Yuba County", "geoscientificinformation", "groundwater", "hydrogeology", "hydrology", "inlandWaters", "model"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-122.641382, 34.889516, -118.472608, 40.702574", "theme": ["geospatial"], "title": "Spatial Provinces and Domains of the Central Valley for Textural Analysis"}