dl9ehcpwy.json

{
	"core": {
		"$id": "ark:/76611/dl9ehcpwy",
		"title": "National Historical Geographic Information System",
		"recordType": "Dataset",
		"excludeIndex": false,
		"shortDescription": "General record for all available themes captured by the National Historical Geographic Information System (NHGIS) statistical demographic data program of the United States Census Bureau; geography covers the United States; time period covers 1790-present",
		"fullDescription":"The NHGIS provides a user-friendly interface for exploring and downloading Census GIS files and tabular datasets. NHGIS is a project of Integrated Public Use Microdata Series (IPUMS), a demographic and population data aggregator housed at the University of Minnesota. For more information NHGIS and IPUMS and to download Census data, visit their website at [https://nhgis.org](https://nhgis.org)",
		"keyAttributes": ["Demographic", "Population"],
		"dataTypes": ["Polygon", "CSV"],
		"accessCondition": "See NHGIS guidelines for instructions on citation (https://www.nhgis.org/citation-and-use-nhgis-data)"
	},
	"tags": {
		"thematic": {
			"LCSH": [{
				"authorityName": "LCSH",
				"authorityID": "http://id.loc.gov/authorities/subjects.html",
				"subjectTag": "https://id.loc.gov/authorities/subjects/sh00006969.html"
			},
			{
				"authorityName": "LCSH",
				"authorityID": "http://id.loc.gov/authorities/subjects.html",
				"subjectTag": "Census"
			},
			{
				"authorityName": "LCSH",
				"authorityID": "http://id.loc.gov/authorities/subjects.html",
				"subjectTag": "Population statistics"
			},
			{
				"authorityName": "LCSH",
				"authorityID": "http://id.loc.gov/authorities/subjects.html",
				"subjectTag": "Demographic surveys"
			},
			{
				"authorityName": "LCSH",
				"authorityID": "http://id.loc.gov/authorities/subjects.html",
				"subjectTag": "Demographic surveys--United States"
			}]
		},
		"geographic":  [{
			"authorityName": "geonames",
			"authorityID": "http://www.geonames.org/ontology#",
			"valueID": "https://www.geonames.org/6252001/united-states.html",
			"placeTag": "United States"
		}],
		"temporal": {
			"temporalNotes": "NHGIS data covers 1790-present day in increments of 10-year, 5-year, 3-year, and 1-year estimates.",
			"temporalRepresentation": {
				"encoding": "https://www.w3.org/TR/NOTE-datetime",
				"valueType": "range",
				"rangeStart": "1790",
				"rangeEnd": "Present day"
			},
            "temporalPublication": {
                "encoding": "https://www.w3.org/TR/NOTE-datetime",
                "valueType": "singleDate",
                "singleDate": "2022-10-18"
              }
		}
	},
	"lifecycle": {
		"acquisition": {
			"creator": "NHGIS",
			"ingredients": [{
                "$id": "ark:/76611/dkhqbwezw",
                "notes": "This Census tract geography data was joined to census statistical demographic data"
            },
            {
                "$id": "ark:/76611/dkhqhgkkt",
                "notes": "This statistical Census demographic data was joined to census tract geography data"
            }]
		},
		"description": {
			"contextProvider": {
				"name": "Ian Spangler",
				"relationshipToData": "Archivist"
			},
			"contextPublicationDate": "2020-10-18",
			"metadataSchema": {
				"schemaName": "LMEC Data Description Schema",
				"$id": "https://github.com/bplmaps/data-description-schema/blob/master/schema.json"
			}

		},
		"maintenance": {
			"officialMaintainer": "NHGIS"
		}
	},
	"considerations":{
		"machineReadability":{
			"value": 1
		},
		"humanReadability":{
			"value": 1
		},
		"socialEmbeddedness":{
			"value": 0
		}
	},
	"resources": {
		"documentation": [
		{
			"$id": "https://assets.nhgis.org/original-data/acs/acs_summary-file_handbook_2019.pdf",
			"title": "ACS Summary File Handbook: What Data Users Need to Know",
			"maintainedBy": "National Historic GIS (NHGIS)"
		},
		{
			"$id": "https://www2.census.gov/programs-surveys/acs/methodology/design_and_methodology/",
			"title": "American Community Survey (ACS) Design and Methodology",
			"maintainedBy": "United States Census Bureau"
		}],
		"tutorials": [{
			"$id": "https://www.youtube.com/watch?v=P1znKKm8vX4",
			"title": "NHGIS Data Finder Tutorial",
			"author": "IPUMS",
			"datePublished": "2013-09-18",
			"notes": "Two minute YouTube video",
			"suggested": true
		},
		{
			"$id": "http://steppingintothemap.com/mappinghistory/wp-content/uploads/2018/03/Working-with-NHGIS-and-Joins.pdf",
			"title": "Working with NHGIS and Joins",
			"author": "Creighton University Digital Humanities",
			"datePublished": "2018-03-01",
			"notes": "Learn how to join census data with demographic data in QGIS",
			"suggested": true
		}]
	}
}