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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    WDL Ground Surface Displacement - Land Subsidence Monitoring

    Metadata Updated: May 15, 2024

    Borehole extensometers are a more site specific method of measuring land subsidence. These instruments consist of a pipe or cable anchored at the bottom of a well casing. Pipe or cable extend from the bottom of the well, through geologic layers susceptible to compaction, to the ground surface. The pipe or cable is connected to a recorder that measures the relative distance between the bottom of the bore hole to the ground surface. These instruments are capable of detecting changes in land surface elevation to 1/100th of a foot. When land subsidence and water depth monitoring activities are paired together, hydraulic and mechanical properties of the aquifer system can be determined. DWR monitors 11 extensometers in the Sacramento Valley.

    For more information regarding land subsidence monitoring vist: http://www.water.ca.gov/groundwater/landsubsidence/LSmonitoring.cfm

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date August 25, 2023
    Metadata Updated Date May 15, 2024

    Metadata Source

    Harvested from State of California

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date August 25, 2023
    Metadata Updated Date May 15, 2024
    Publisher California Department of Water Resources
    Maintainer
    Identifier 12fdc81b-64b2-4bd5-961e-1758044b3b0c
    Data First Published 2017-11-06T05:22:27.964564
    Data Last Modified 2024-05-12T16:06:51.417227
    Category Natural Resources, Water
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id bdc13a09-195d-44bf-84a3-8c5982153d7f
    Harvest Source Id 3ba8a0c1-5dc2-4897-940f-81922d3cf8bc
    Harvest Source Title State of California
    Source Datajson Identifier True
    Source Hash e36892ad245e4239eaa1cd032fbbe80de2f0479e285bfb707439a6265baa5000
    Source Schema Version 1.1

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