{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "undefined", "hasEmail": "mailto:metadata@ciesin.columbia.edu"}, "description": "The U.S. Census Grids (Summary File 1), 1990 data set contains grids of demographic and socioeconomic data from the year 1990 U.S. census in ASCII and geotiff formats. The grids have a resolution of 30 arc-seconds (0.0083 decimal degrees), or approximately 1 square km. The gridded variables are based on census block geography from Census 1990 TIGER/Line Files and census variables (population, households, and housing variables). This data set is produced by the Columbia University Center for International Earth Science Information Network (CIESIN).", "distribution": [{"@type": "dcat:Distribution", "description": "Data Download Page", "downloadURL": "https://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-1990/data-download", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset"}, {"@type": "dcat:Distribution", "description": "Data Set\u00a0Overview Page", "downloadURL": "https://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-1990", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "Documentation Page", "downloadURL": "http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-1990/docs", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "Sample browse graphic of the data set.", "downloadURL": "https://sedac.ciesin.columbia.edu/downloads/maps/usgrid/usgrid-summary-file1-1990/sedac-logo.jpg", "format": "JPEG", "mediaType": "image/jpeg", "title": "Get a related visualization"}, {"@type": "dcat:Distribution", "description": "Search results for publications that cite this dataset by its DOI.", "downloadURL": "https://scholar.google.com/scholar?q=10.7927%2FH4TB14TN", "format": "HTML", "mediaType": "text/html", "title": "Google Scholar search results"}], "identifier": "C1000000180-SEDAC", "issued": "2013-05-17", "keyword": ["earth-science", "human-dimensions", "population"], "language": ["en-US"], "modified": "2025-07-14", "programCode": ["026:001"], "publisher": {"@type": "org:Organization", "name": "SEDAC"}, "references": ["https://doi.org/10.7927/H40Z716C", "https://doi.org/10.7927/H4B85623"], "spatial": "-180.0 17.0 -65.0 72.0", "temporal": "1990-04-01T00:00:00Z/1990-04-01T00:00:00Z", "theme": ["USCG", "geospatial"], "title": "U.S. Census Grids (Summary File 1), 1990"}