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    • Airborne electromagnetic and magnetic survey of Illinois River Basin, 2023

    Metadata Updated: November 22, 2024

    Airborne electromagnetic (AEM) and magnetic survey data were collected during January and February 2023 over a distance of 3,799.3 line kilometers covering the Illinois River Basin and surrounding regions in Illinois and Indiana. Data were collected as part of the USGS Illinois River Basin Next Generation Water Observing Systems (NGWOS) project to improve understanding of depth to bedrock and groundwater systems near Illinois River Basin. The survey was funded by the USGS, and was carried out in collaboration with the Illinois State Geological Survey (ISGS) and Illinois State Water Survey (ISWS). Data were acquired by SkyTEM Canada Inc. with the SkyTEM 304 time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was acquired at a nominal flight height of 30 - 40 m above terrain along parallel flight lines primarily oriented northwest - southeast and with nominal line spacing of 20 km. Several irregular flightlines were acquired along rivers.

    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.

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    Dates

    Metadata Created Date November 22, 2024
    Metadata Updated Date November 22, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 22, 2024
    Metadata Updated Date November 22, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/d9afdfeb06b4274bcfac71bc02b2181c
    Identifier USGS:66842d18d34e0f592272b4c0
    Data Last Modified 20241120
    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://datainventory.doi.gov/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
    Harvest Object Id 00fdb84a-feed-4224-ba7d-dcebdbfa17d7
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -91.217254,38.954406,-86.154497,41.844394
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash 91558524db133cd5d7a922b6e573c12e36d0a3821347621d2ca43a9723c266e8
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -91.217254, 38.954406, -91.217254, 41.844394, -86.154497, 41.844394, -86.154497, 38.954406, -91.217254, 38.954406}

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