U.S. Census Grids (Summary File 1), 2000
Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Distribution_Information
Metadata_Reference_Information
Identification Information
Section Index
Citation:
Citation Information:
Originator: Seirup, L., and G. Yetman
Publication Date: 20060531
Title: U.S. Census Grids (Summary File 1), 2000
Edition: 1.00
Geospatial Data Presentation Form: raster, map, map service
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Online Linkage: https://doi.org/10.7927/H4B85623
Description:
Abstract:
The U.S. Census Grids (Summary File 1), 2000 data set contains grids of demographic and socioeconomic data from the year 2000 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 2000 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).
Purpose: To provide gridded demographic data, including characteristics of age, race, ethnicity, and housing, for the United States and Puerto Rico for data integration.
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 2000/04/01
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -180.000000
East Bounding Coordinate: -65.000000
North Bounding Coordinate: 72.000000
South Bounding Coordinate: 17.000000
Keywords:
Theme:
Theme Keyword Thesaurus: Data Granularity
Theme Keyword: Country
Theme Keyword: State
Theme:
Theme Keyword Thesaurus: ISO Topic
Theme Keyword: Boundaries
Theme Keyword: Society
Theme:
Theme Keyword Thesaurus: SEDAC Theme
Theme Keyword: Population
Theme:
Theme Keyword Thesaurus: GCMD Science Keywords, Version 8.6
Theme Keyword: EARTH SCIENCE > HUMAN DIMENSIONS > POPULATION
Place:
Place Keyword Thesaurus: CIESIN Location Terms, Version 3.1
Place Keyword: United States of America
Place:
Place Keyword Thesaurus: U.S. States and Territories
Place Keyword: Alabama
Place Keyword: Alaska
Place Keyword: Arizona
Place Keyword: Arkansas
Place Keyword: California
Place Keyword: Colorado
Place Keyword: Connecticut
Place Keyword: Delaware
Place Keyword: District of Columbia
Place Keyword: Florida
Place Keyword: Georgia
Place Keyword: Hawaii
Place Keyword: Idaho
Place Keyword: Illinois
Place Keyword: Indiana
Place Keyword: Iowa
Place Keyword: Kansas
Place Keyword: Kentucky
Place Keyword: Louisiana
Place Keyword: Maine
Place Keyword: Maryland
Place Keyword: Massachusetts
Place Keyword: Michigan
Place Keyword: Minnesota
Place Keyword: Mississippi
Place Keyword: Missouri
Place Keyword: Montana
Place Keyword: Nebraska
Place Keyword: Nevada
Place Keyword: New Hampshire
Place Keyword: New Jersey
Place Keyword: New Mexico
Place Keyword: New York
Place Keyword: North Carolina
Place Keyword: North Dakota
Place Keyword: Ohio
Place Keyword: Oklahoma
Place Keyword: Oregon
Place Keyword: Pennsylvania
Place Keyword: Puerto Rico
Place Keyword: Rhode Island
Place Keyword: South Carolina
Place Keyword: South Dakota
Place Keyword: Tennessee
Place Keyword: Texas
Place Keyword: Utah
Place Keyword: Vermont
Place Keyword: Virginia
Place Keyword: Washington
Place Keyword: West Virginia
Place Keyword: Wisconsin
Place Keyword: Wyoming
Access Constraints: None
Use Constraints: Users are free to use, copy, distribute, transmit, and adapt the work for commercial and non-commercial purposes, without restriction, as long as clear attribution of the source is provided.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
Contact Address:
Address Type: mailing and physical address
Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8920
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Browse Graphic:
Cross Reference:
Citation Information:
Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 20130517
Title: U.S. Census Grids (Summary File 1), 1990
Edition: 1.00
Geospatial Data Presentation Form: raster
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Online Linkage: https://doi.org/10.7927/H4TB14TN
Cross Reference:
Citation Information:
Originator: Center for International Earth Science Information Network - CIESIN - Columbia University
Publication Date: 20170526
Title: U.S. Census Grids (Summary File 1), 2010
Edition: 1.00
Geospatial Data Presentation Form: raster, map
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Online Linkage: https://doi.org/10.7927/H40Z716C
Data Quality Information
Section Index
Lineage:
Process Step:
Process Description:
1. The 2000 SF1 files for each state are loaded into Microsoft Access and queries are used to extract the records pertaining to census blocks and the fields being used for gridding.
2. The SF1 fields are combined as specified in the variable documentation to create the variables being gridded.
3. For all states, except Hawaii, the 2000 TIGER/Line files are converted to ArcInfo coverages using the ArcInfo command TIGERTOOL. For Hawaii, a census block shapefile is downloaded from the Hawaii Statewide GIS Program web site at http://www.hawaii.gov/dbedt/gis/download.htm and converted to an ArcInfo coverage. The Hawaii state shapefile is used because the U.S. Census tiger data for Hawaii does not use the NAD 83 datum and the Census Bureau does not specify what regional datum is used for Hawaii. The Hawaii state shapefile has been converted to NAD 83.
4. The SF1 variables are joined to the tiger coverages. The density of each variable is calculated for each census block.
5. A 30 arc-second fishnet is created and unioned with the census block coverage.
6. The area in square kilometers is calculated for each area of intersection. The total count for each variable is calculated by multiplying the area in square kilometers in each area of intersection by the density of that variable in the underlying census block.
7. The total count for each grid cell is calculated by aggregating the variable counts for each area of intersection that falls within that grid cell.
8. The fishnet grid for each variable is converted to raster format.
Spatial Data Organization Information
Section Index
Direct Spatial Reference Method: Raster
Raster Object Information:
Raster Object Type: Grid Cell
Row Count: 3000
Column Count: 1200
Vertical Count: 1
Spatial Reference Information
Section Index
Horizontal Coordinate System Definition:
Geographic:
Latitude Resolution: 0.008300
Longitude Resolution: 0.008300
Geographic Coordinate Units: Decimal degrees
Geodetic Model:
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137.000000
Denominator of Flattening Ratio: 298.257000
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
Contact Address:
Address Type: mailing and physical address
Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8920
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Resource Description: CIESIN_SEDAC_USCG_SF1
Distribution Liability:
CIESIN follows procedures designed to ensure that data disseminated by CIESIN are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact SEDAC User Services at +1 845-365-8920 or via email at ciesin.info@ciesin.columbia.edu. Neither CIESIN nor NASA verifies or guarantees the accuracy, reliability, or completeness of any data provided. CIESIN provides this data without warranty of any kind whatsoever, either expressed or implied. CIESIN shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided by CIESIN.
Standard Order Process:
Fees: 0
Ordering Instructions:
The data in Georeferenced Tagged Image File Format (.tif), and American Standard Code for Information Interchange (.asc) formats; the maps in Portable Document Format (.pdf), and Portable Network Graphics (.png) formats; and the web map services are available from the NASA Socioeconomic Data and Applications Center (SEDAC).
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ASCII
File Decompression Technique: Unzip
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions: Data accessible via the data set landing page.
Digital Form:
Digital Transfer Information:
Format Name: GeoTIFF
File Decompression Technique: Unzip
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions: Data accessible via the data set landing page.
Digital Form:
Digital Transfer Information:
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions: Maps accessible via the data set landing page.
Digital Form:
Digital Transfer Information:
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions: Maps accessible via the data set landing page.
Digital Form:
Digital Transfer Information:
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions: Web Map Services accessible via the data set landing page.
Available Time Period:
Time Period Information:
Range of Dates/Times:
Beginning Date: 2006/05/31
Ending Date: Present
Metadata Reference Information
Section Index
Metadata Date: 2006/07/05
Metadata Review Date: 2022/08/31
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Center for International Earth Science Information Network (CIESIN) Metadata Administration
Contact Address:
Address Type: mailing and physical address
Address: CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
City: Palisades
State or Province: New York
Postal Code: 10964
Country: United States
Contact Voice Telephone: +1 845-365-8988
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: metadata@ciesin.columbia.edu
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
GeoMedia
Catalog report generated Wednesday, August 31, 2022