U.S. Census Grids (Summary File 3), 2000

Citation:

Citation Information:

Originator: Seirup, L., and G. Yetman
Publication Date: 20060531
Title: U.S. Census Grids (Summary File 3), 2000
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: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-2000

Description:

Abstract:
U.S. Census Grids (Summary File 3), 2000 contain 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 income, education, 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

Status:

Progress: Complete
Maintenance and Update Frequency: As needed

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -180.000000
East Bounding Coordinate: 180.000000
North Bounding Coordinate: 72.000000
South Bounding Coordinate: 17.000000

Keywords:

Theme:

Theme Keyword Thesaurus: CIESIN Indexing Vocabulary Version 2.1 (GCMD Format)
Theme Keyword: CIESIN > Economic Activity > Income
Theme Keyword: CIESIN > Human Attitudes, Preferences, and Behavior > Consumer Behavior > Poverty
Theme Keyword: CIESIN > Human Attitudes, Preferences, and Behavior > Education
Theme Keyword: CIESIN > Population Dynamics > Demographic Characteristics > Place of Residence
Theme Keyword: CIESIN > Population Dynamics > Demographic Characteristics > Population Distribution
Theme Keyword: CIESIN > Population Dynamics > Demographic Characteristics > Population Size

Theme:

Theme Keyword Thesaurus: GCMD Parameter Valids
Theme Keyword: EARTH SCIENCE > Human Dimensions > Population > Population Distribution
Theme Keyword: EARTH SCIENCE > Human Dimensions > Population > Population Size

Theme:

Theme Keyword Thesaurus: General
Theme Keyword: Census Block
Theme Keyword: Households
Theme Keyword: Housing
Theme Keyword: Housing Age
Theme Keyword: Immigration
Theme Keyword: U.S. Census

Theme:

Theme Keyword Thesaurus: EI Gateway Vocabulary
Theme Keyword: Population

Theme:

Theme Keyword Thesaurus: SEDAC Topic
Theme Keyword: Population

Theme:

Theme Keyword Thesaurus: Data Granularity
Theme Keyword: Country

Theme:

Theme Keyword Thesaurus: CSA-NBII Biocomplexity
Theme Keyword: Education
Theme Keyword: Households
Theme Keyword: Housing
Theme Keyword: Human Population Density
Theme Keyword: Immigration
Theme Keyword: Income
Theme Keyword: Population Characteristics
Theme Keyword: Population Distribution
Theme Keyword: Poverty

Theme:

Theme Keyword Thesaurus: ISO Topic
Theme Keyword: Boundaries
Theme Keyword: Society

Place:

Place Keyword Thesaurus: CIESIN Location Terms, version 2.0
Place Keyword: Region > Equatorial
Place Keyword: Region > Mid-Latitude
Place Keyword: Continent > North America
Place Keyword: Region > Polar
Place Keyword: Country > United States

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:
The Trustees of Columbia University in the City of New York hold the copyright of this data set. Users are prohibited from any commercial, non-free resale, or redistribution without explicit written permission from CIESIN. Users should acknowledge CIESIN as the source used in the creation of any reports, publications, new data sets, derived products, or services resulting from the use of this data set. CIESIN also requests reprints of any publications and notification of any redistributing efforts.
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: NY
Postal Code: 10964
Country: USA

Contact Voice Telephone: +1 845-365-8920
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu

Cross Reference:

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
Publication Information:

Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)

Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000

Cross Reference:

Citation Information:

Originator: Seirup, L., and G. Yetman
Publication Date: 20060531
Title: U.S. Census Grids (Summary File 1), 2000: Metropolitan Statistical Areas
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: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000-msa

Cross Reference:

Citation Information:

Originator: Seirup, L., and G. Yetman
Publication Date: 20060531
Title: U.S. Census Grids (Summary File 3), 2000: Metropolitan Statistical Areas
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: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-2000-msa

Cross Reference:

Citation Information:

Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 2012
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: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-1990

Cross Reference:

Citation Information:

Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 2012
Title: U.S. Census Grids (Summary File 1), 1990: Metropolitan Statistical Areas
Edition: 1.00
Geospatial Data Presentation Form: raster
Publication Information:

Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)

Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-1990-msa

Cross Reference:

Citation Information:

Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 2012
Title: U.S. Census Grids (Summary File 3), 1990: Metropolitan Statistical Areas
Edition: 1.00
Geospatial Data Presentation Form: raster
Publication Information:

Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)

Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-1990-msa

Cross Reference:

Citation Information:

Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 2012
Title: U.S. Census Grids (Summary File 3), 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: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-1990

Lineage:

Process Step:

Process Description:
1. The 2000 SF3 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 SF3 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 SF3 block group data are proportionately allocated to census blocks using an appropriate variable from the Summary File 1 data. For instance, the residents in the block group with a high school degree are allocated to the block using the population age 25 and older from SF1 data.
5. The SF3 counts assigned to each census block are joined to the tiger coverages. The density of each variable is calculated for each census block.
6. A 30 arc-second fishnet is created and unioned with the census block coverage.
7. 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.
8. 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.
9. The fishnet grid for each variable is converted to raster format.

Direct Spatial Reference Method: Raster

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

Detailed Description:

Attribute:

Attribute Label: aggi
Attribute Definition: Aggregate household income in 1999. U.S. Census 2000, summary file 3, table P54, field P054001

Attribute:

Attribute Label: ba
Attribute Definition:
Maximum level of educational attainment: Bachelor¿s degree or greater. U.S. Census 2000, summary file 3, table P37, sum of fields P037015, P037016, P037017, P037018, P037032, P037033, P037034, P037035
Attribute:

Attribute Label: fb
Attribute Definition: Foreign born population. U.S. Census 2000, summary file 3, table P21, field P021013

Attribute:

Attribute Label: ha1
Attribute Definition: Housing units: Built 1990 to March 2000. U.S. Census 2000, summary file 3, table P34, sum of fields P034002, P034003, and P034004

Attribute:

Attribute Label: ha2
Attribute Definition: Housing units: Built 1970 to 1989. U.S. Census 2000, summary file 3, table P34, sum of fields P034005 and P034006

Attribute:

Attribute Label: ha3
Attribute Definition: Housing units: Built 1950 to 1969. U.S. Census 2000, summary file 3, table P34, sum of fields P034007 and P034008

Attribute:

Attribute Label: ha4
Attribute Definition: Housing units: Built before 1950. U.S. Census 2000, summary file 3, table P34, sum of fields P034009 and P034010

Attribute:

Attribute Label: hh3
Attribute Definition: Households. U.S. Census 2000, summary file 3, table P14, field P014001

Attribute:

Attribute Label: hs
Attribute Definition:
Maximum level of educational attainment: High school degree or greater. U.S. Census 2000, summary file 3, table P37, sum of fields P037011, P037012, P037013, P037014, P037015, P037016, P037017, P037018, P037028, P037029, P037030, P037031, P037032, P037033, P037034, P037035
Attribute:

Attribute Label: hu3
Attribute Definition: Housing units. U.S. Census 2000, summary file 3, table P34, field P034001

Attribute:

Attribute Label: hunv
Attribute Definition: Occupied housing units with no vehicle available. U.S. Census 2000, summary file 3, table P44, sum of fields P044003 and P044010

Attribute:

Attribute Label: liso
Attribute Definition: Linguistic isolation: Households in which no one, age 14 or older, speaks English very well. U.S. Census 2000, summary file 3, table P20, sum of fields P020004, P020007, P020010, and P020013

Attribute:

Attribute Label: lowi
Attribute Definition:
Population for whom the ratio of income in 1999 to the poverty level was under 2.0. U.S. Census 2000, summary file 3, table P88, sum of fields P088002, P088003, P088004, P088005, P088006, P088007, P088008, P088009
Attribute:

Attribute Label: occ3
Attribute Definition: Occupied housing units. U.S. Census 2000, summary file 3, table P44, field P044001

Attribute:

Attribute Label: p25
Attribute Definition: Population 25 years and over. U.S. Census 2000, summary file 3, table P37, field P037001

Attribute:

Attribute Label: pop3
Attribute Definition: Population. U.S. Census 2000, summary file 3, table P1, field P001001

Attribute:

Attribute Label: pov
Attribute Definition: Population for whom the ratio of income in 1999 to the poverty level was under 1.0. U.S. Census 2000, summary file 3, table P88, sum of fields P088002, P088003, P088004

Attribute:

Attribute Label: pvp
Attribute Definition: Population for whom poverty status is determined. U.S. Census 2000, summary file 3, table P88, field P088001

Attribute:

Attribute Label: sevp
Attribute Definition: Population for whom the ratio of income in 1999 to the poverty level was under 0.50. U.S. Census 2000, summary file 3, table P88, field P088002

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: NY
Postal Code: 10964
Country: USA

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_SF3
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:

Ordering Instructions:
The data in American Standard Code for Information Interchange (ASCII) and Geographic Tagged Image File Format (GeoTIFF) files and maps in Portable Document Format (PDF) and Portable Network Graphics (PNG) formatare available from the NASA Socioeconomic Data and Applications Center (SEDAC).
Standard Order Process:

Digital Form:

Digital Transfer Information:

Format Name: GeoTIFF, ASCII
File Decompression Technique: Unzip

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-2000/data-download

Access Instructions: Data accessible via direct download.

Digital Form:

Digital Transfer Information:

Format Name: PDF, PNG

Digital Transfer Option:

Online Option:

Computer Contact Information:

Network Address:

Network Resource Name: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-2000/maps

Access Instructions: Maps accessible via direct download.

Available Time Period:

Time Period Information:

Single Date/Time:

Calendar Date: 2006

Metadata Date: 2006/07/05
Metadata Review Date: 2013/02/28
Metadata Future Review Date: 2014/02/28
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: NY
Postal Code: 10964
Country: USA

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