Bronze level automatically awarded US beta

This data has achieved Bronze level on 22 October 2015 which means this data makes a great start at the basics of publishing open data.

Location of General Head Boundaries (GHB) in the Central Valley Hydrologic Model (CVHM)

Description

This digital dataset represents the area where lateral flow into and out of the Central Valley groundwater-flow system occurs. The General Head Boundary (GHB) is set to 0 and is only in the Delta and is specified in layer 1 where the groundwater system intersects the surface water system. The Central Valley encompasses an approximate 50,000 square-kilometer region of California. The complex hydrologic system of the Central Valley is simulated using the USGS numerical modeling code, MODFLOW-FMP (Schmid and others, 2006). This application is referred to here as the Central Valley Hydrologic Model (CVHM) (Faunt, 2009). Utilizing MODFLOW-FMP, the CVHM simulates groundwater and surface-water flow, irrigated agriculture, land subsidence, and other key processes in the Central Valley on a monthly basis from 1961-2003. The total active modeled area is 20,334 square-miles on a finite-difference grid comprising 441 rows and 98 columns. Slightly less that 50 percent of the cells are active. The CVHM grid has a uniform horizontal discretization of 1x1 square mile and is oriented parallel to the valley axis, 34 degrees west of north (Faunt, 2009). The CVHM is the most recent regional-scale model of the Central Valley developed by the U.S. Geological Survey (USGS). The CVHM was developed as part of the USGS Groundwater Resources Program (see "Foreword", Chapter A, page iii, for details).

General Information

Legal Information

This dataset has been created by US Government which means it is required to be in the public domain. However US copyright law only allows open access by US citizens, we have assumed the data is equivalently licensed as CC0 for the rest of the world as this is in the spirit of the US Government’s Open Data policy.

  • The rights statement is at

    http://catalog.data.gov/dataset/location-of-general-head-boundaries-ghb-in-the-central-valley-hydrologic-model-cvhm Do you think this data is incorrect? Let us know

  • Outside the US, this data is available under

    Creative Commons CCZero Do you think this data is incorrect? Let us know

  • There are

    yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know

  • The content is available under

    Creative Commons CCZero Do you think this data is incorrect? Let us know

  • This data contains

    no data about individuals Do you think this data is incorrect? Let us know

Practical Information

  • The data appears in this collection

    http://catalog.data.gov/organization/usgs-gov Do you think this data is incorrect? Let us know

  • This data changes

    no Do you think this data is incorrect? Let us know

  • The data is

    backed up offsite Do you think this data is incorrect? Let us know

Technical Information

Social Information

  • The documentation includes machine-readable data for

    title Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    description Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    identifier Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    landing page Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    release frequency Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    publisher Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    distribution(s) Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    release date Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    modification date Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    temporal coverage Do you think this data is incorrect? Let us know

  • The documentation includes machine-readable data for

    spatial/geographical coverage Do you think this data is incorrect? Let us know

  • The documentation about each distribution includes machine-readable data for

    release date Do you think this data is incorrect? Let us know

  • The documentation about each distribution includes machine-readable data for

    a URL to access the data Do you think this data is incorrect? Let us know

  • The documentation about each distribution includes machine-readable data for

    a URL to download the dataset Do you think this data is incorrect? Let us know

  • Find out how to contact someone about this data at

    http://catalog.data.gov/dataset/location-of-general-head-boundaries-ghb-in-the-central-valley-hydrologic-model-cvhm Do you think this data is incorrect? Let us know

  • Find out how to suggest improvements to publication at

    http://www.data.gov/issue/?media_url=http://catalog.data.gov/dataset/location-of-general-head-boundaries-ghb-in-the-central-valley-hydrologic-model-cvhm Do you think this data is incorrect? Let us know