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    • MODFLOW-2000 model files used to simulate wellbore flow and evaluate aquifer properties and heterogeneity in wells at Fort Irwin National Training Center, San Bernardino County, California

    Metadata Updated: January 22, 2026

    MODFLOW-2000 was used within the AnalyzeHOLE program--an integrated wellbore flow analysis tool (https://doi.org/10.3133/tm4F2)--to simulate the 2-D radial flow to each of six wells within three basins at the Fort Irwin National Training Center in San Bernardino County, California. Wellbore flow was simulated for each well by using AnalyzeHOLE to evaluate aquifer properties and heterogeneity. Horizontal layers within the model (hydrogeologic units) were defined based on lithologic and geophysical logs from each well and adjusted during calibration. The majority of the wells were installed in previously underdeveloped or minimally developed groundwater basins. The information gathered from the models provides a basis for developing and constraining basin-scale hydrogeologic-framework and groundwater-flow models that will be used to further evaluate water resources in each groundwater basin. This USGS data release contains all of the input and output files for the AnalyzeHOLE analysis of six wells described in the associated U.S. Geological Survey Scientific Investigations Report 2019-5091 (https://doi.org/10.3133/sir20195091).

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date January 12, 2026
    Metadata Updated Date January 22, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 12, 2026
    Metadata Updated Date January 22, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_9a0c7cd8-ab20-451a-9f6c-40ac226a5344
    Data Last Modified 2020-11-17T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Datagov Dedupe Retained 20260122055112
    Harvest Object Id 269cdc12-0ce7-4b97-94f7-2cf261ee8922
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -117.0780, 35.2610, -117.0780, 35.4500, -116.6600, 35.4500, -116.6600, 35.2610, -117.0780, 35.2610}
    Source Datajson Identifier True
    Source Hash 08da07b254928a5935e1edac212fabeaa3ed0264bbf4b004b5fba351512af22a
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -117.0780, 35.2610, -117.0780, 35.4500, -116.6600, 35.4500, -116.6600, 35.2610, -117.0780, 35.2610}

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