{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Earthdata Forum", "hasEmail": "mailto:earthdata-support@nasa.gov"}, "description": "Radiation transmittance (ratio of transmitted to incident radiation) through clear ice, refrozen slush ice, and brash ice, from ice surface to ice-water interface in the 400 to 600 nanometer range (photosynthetically active range), was measured at two freshwater lakes: Silver Lake, near Ann Arbor, Michigan and Whitefish Point on Lake Superior. Data available include surface and under-ice sensor readings, date and time of observation, ice thickness, water depth, distance of under-ice sensor from ice bottom surface, and site number/location.", "distribution": [{"@type": "dcat:Distribution", "conformsTo": "http://www.isotc211.org/2005/gmi", "description": "The metadata's original source.", "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C1386206477-NSIDCV0.iso19115", "format": "ISO", "mediaType": "text/xml", "title": "Original Metadata"}, {"@type": "dcat:Distribution", "downloadURL": "https://doi.org/10.7265/N5QN64N6", "format": "HTML", "mediaType": "text/html"}, {"@type": "dcat:Distribution", "downloadURL": "https://dx.doi.org/10.7265/N5QN64N6", "format": "HTML", "mediaType": "text/html"}, {"@type": "dcat:Distribution", "downloadURL": "https://noaadata.apps.nsidc.org/NOAA/G00802/", "format": "BIN", "mediaType": "application/octet-stream"}], "identifier": "10.7265/N5QN64N6", "keyword": ["earth-science-atmospheric-radiation-atmosphere-solar-radiation", "earth-science-atmospheric-radiation-atmosphere-transmittance", "earth-science-snow-ice-cryosphere-ice-depth-thickness", "earth-science-snow-ice-cryosphere-lake-ice"], "license": "https://www.usa.gov/government-works", "modified": "2026-06-23", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "NSIDC"}, "spatial": "[\"CARTESIAN\", [{\"WestBoundingCoordinate\": -85.0, \"NorthBoundingCoordinate\": 46.0, \"EastBoundingCoordinate\": -83.0, \"SouthBoundingCoordinate\": 42.0}]]", "temporal": "1978-01-01/1978-12-31", "theme": ["Earth Science"], "title": "GLERL Radiation Transfer Through Freshwater Ice, Version 1"}