{"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 river bed. The acoustic data were collected from the main and side channels (where accessible) of the Marseilles reach June 26 \u2013 August 23, 2017, and May 22, 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.5d583333e4b01d82ce8ec183.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5d583333e4b01d82ce8ec183", "keyword": ["Grundy County", "Illinois", "LaSalle County", "Physical Habitats and Geomorphology", "USGS:5d583333e4b01d82ce8ec183", "image mosaics", "invasive species", "mapping", "multibeam sonar", "river", "sidescan sonar"], "modified": "2026-04-15T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-88.746651069, 41.327493076, -88.745311966, 41.328617284", "theme": ["geospatial"], "title": "Illinois River, Marseilles, Sidescan Image Mosaic,  2017 - 2018"}