{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "U.S. Geological Survey", "hasEmail": "mailto:whsc_data_contact@usgs.gov"}, "description": "The land-cover thematic accuracy of NLCD 2001 was assessed from a probability-sample of 15,000 pixels. NLCD 2001 overall Anderson Level II and Level I accuracies were 78.7% and 85.3%, respectively. Accuracy results are reported for 10 geographic regions of the United States, with regional overall accuracies ranging from 68% to 86% for Level II and from 79% to 91% at Level I. Geographic variation in class-specific accuracy was strongly associated with the phenomenon that regionally more abundant land-cover classes had higher accuracy.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9MZGHLF", "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.66956511d34eba98af25c739.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_66956511d34eba98af25c739", "keyword": ["Accuracy assessment", "Land cover", "Land cover change", "NLCD", "Reference data quality", "U.S.", "US", "USGS:66956511d34eba98af25c739", "United States", "imageryBaseMapsEarthCover"], "modified": "2024-07-16T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-127.7005, 23.3604, -66.1033, 51.3995", "theme": ["geospatial"], "title": "National Land Cover Database (NLCD) 2001 Accuracy Assessment Points Conterminous United States"}