{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Jenny L Hanson", "hasEmail": "mailto:jhanson@usgs.gov"}, "description": "Remote sensing technologies, such as high-resolution sonar, can be used to collect more detailed information about the benthic and water column characteristics of macro habitats in the Illinois River. Multibeam echosounders (MBES) collect multibeam and sidescan simultaneously, providing high-resolution images of the riverbed. Sidescan images, in raster format, show the recorded intensity of acoustic signal returns from the riverbed. The acoustic data were collected from the main and side channels (where accessible) of the Starved Rock reach August 24 \u2013 September 13, 2017, and May 23, 2018.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9IHNSFT", "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.5d753e62e4b0c4f70d01a7f3.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5d753e62e4b0c4f70d01a7f3", "keyword": ["Illinois", "LaSalle County", "Physical Habitats and Geomorphology", "USGS:5d753e62e4b0c4f70d01a7f3", "benthic ecosystems", "freshwater ecosystems", "invasive species", "mapping", "multibeam sonar", "river", "river channel", "sidescan sonar"], "modified": "2026-04-15T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-88.978875622, 41.319468827, -88.970066765, 41.322405539", "theme": ["geospatial"], "title": "Illinois River, Starved Rock, Sidescan Image Mosaic, 2017-2018"}