U.S. Census Grids (Summary File 1), 1990

Citation:

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

Description:

Abstract:
U.S. Census Grids (Summary File 1), 1990 contain 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).
Purpose: To provide gridded demographic data, including characteristics of age, race, ethnicity, and housing, for the United States.

Time Period of Content:

Time Period Information:

Single Date/Time:

Calendar Date: 1990/04/01

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: CIESIN Indexing Vocabulary Version 2.1 (GCMD Format)
Theme Keyword: CIESIN > Population Dynamics > Demographic Characteristics > Age
Theme Keyword: CIESIN > Population Dynamics > Demographic Characteristics > Age Structure
Theme Keyword: CIESIN > Population Dynamics > Demographic Characteristics > Ethnicity
Theme Keyword: CIESIN > Population Dynamics > Demographic Characteristics > Gender
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: Race
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: ISO Topic
Theme Keyword: Boundaries
Theme Keyword: Society

Theme:

Theme Keyword Thesaurus: CSA-NBII Biocomplexity
Theme Keyword: Age Groups
Theme Keyword: Households
Theme Keyword: Housing
Theme Keyword: Human Population Density
Theme Keyword: Population Characteristics
Theme Keyword: Population Distribution

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: 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: 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., 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

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 1990 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 1990 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.

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: a1
Attribute Definition: Age, under 1 year
Attribute Definition Source: U.S. Census 1990, summary file 1, table P11, field P11001

Attribute:

Attribute Label: a2
Attribute Definition: Age, 1 to 4 years
Attribute Definition Source: U.S. Census 1990, summary file 1, table P11, sum of fields P11002, P11003

Attribute:

Attribute Label: a3
Attribute Definition: Age, 5 to 17 years
Attribute Definition Source: U.S. Census 1990, summary file 1, table P11, sum of fields P11004, P11005, P11006, P11007, P11008, P11009, P011010, P11011, P11012.

Attribute:

Attribute Label: a4
Attribute Definition: Age, 18 to 24 years
Attribute Definition Source: U.S. Census 1990, summary file 1, table P11, sum of fields P11013, P11014, P11015, P11016, P11017

Attribute:

Attribute Label: a5
Attribute Definition: Age, 25 to 64 years
Attribute Definition Source: U.S. Census 1990, summary file 1, table P11, sum of fields P11018, P11019, P11020, P11020, P11022, P11023, P11024, P11025, P11026

Attribute:

Attribute Label: a6
Attribute Definition: Age, 65 to 79 years
Attribute Definition Source: U.S. Census 1990, summary file 1, table P11, sum of fields P11027, P11028, P11029

Attribute:

Attribute Label: a7
Attribute Definition: Age, 80 years and over
Attribute Definition Source: U.S. Census 1990, summary file 1, table P11, sum of fields P11030, P11031

Attribute:

Attribute Label: am
Attribute Definition: Race, American Indian and Alaska Native alone
Attribute Definition Source: U.S. Census 1990, summary file 1, table P6, field P06003

Attribute:

Attribute Label: area
Attribute Definition: Area of the grid cell in square meters

Attribute:

Attribute Label: as
Attribute Definition: Race, Asian alone
Attribute Definition Source: U.S. Census 1990, summary file 1, table P7, field P07005, sum of fields P07006, P07007, P07008, P07009, P07010, P07011, P07012, P07013, P07014, P07015, P07016

Attribute:

Attribute Label: bl
Attribute Definition: Race, Black or African American alone
Attribute Definition Source: U.S. Census 1990, summary file 1, table P6, field P06002

Attribute:

Attribute Label: fem
Attribute Definition: 2 or more person households: Female householder, no husband, with own children under 18 years
Attribute Definition Source: U.S. Census 1990, summary file 1, table P16, field P16007

Attribute:

Attribute Label: hh
Attribute Definition: Households
Attribute Definition Source: U.S. Census 1990, summary file 1, table P3, field P03001

Attribute:

Attribute Label: hhp
Attribute Definition: Population in households
Attribute Definition Source: U.S. Census 1990, summary file 1, table P15, sum of fields P15001, P15002, P15003, P15004, P15005, P15006, P15007, P15008, P15009, P15010

Attribute:

Attribute Label: hi
Attribute Definition: Hispanic or Latino
Attribute Definition Source: U.S. Census 1990, summary file 1, table P9, sum of fields P09002, P09003, P09004, P09005

Attribute:

Attribute Label: hu
Attribute Definition: Housing units
Attribute Definition Source: U.S. Census 1990, summary file 1, table H1, field hu100

Attribute:

Attribute Label: hulp
Attribute Definition: Occupied housing units: 1-person household
Attribute Definition Source: U.S. Census 1990, summary file 1, table H17, field H17001

Attribute:

Attribute Label: nhb
Attribute Definition: Not Hispanic or Latino, Black or African American alone
Attribute Definition Source: U.S. Census 1990, summary file 1, table P10, field P10002

Attribute:

Attribute Label: nhw
Attribute Definition: Not Hispanic or Latino, White alone
Attribute Definition Source: U.S. Census 1990, summary file 1, table P10, field P10001

Attribute:

Attribute Label: occ
Attribute Definition: Occupied housing units
Attribute Definition Source: U.S. Census 1990, summary file 1, table H2, field H02001

Attribute:

Attribute Label: own
Attribute Definition: Occupied housing units: owner occupied
Attribute Definition Source: U.S. Census 1990, summary file 1, table H3, field H03001

Attribute:

Attribute Label: pi
Attribute Definition: Race, Native Hawaiian and Other Pacific Islander alone
Attribute Definition Source: U.S. Census 1990, summary file 1, table P7, sum of fields P07017, P07018, P07019, P07020, P07021, P07022, P07023, P07024

Attribute:

Attribute Label: pop
Attribute Definition: Population
Attribute Definition Source: U.S. Census 1990, summary file 1, table geo, field pop100

Attribute:

Attribute Label: sea
Attribute Definition: Vacant housing units: For seasonal, recreational, or occasional use
Attribute Definition Source: U.S. Census 1990, summary file 1, table H5, field H05004

Attribute:

Attribute Label: wh
Attribute Definition: Race, White alone
Attribute Definition Source: U.S. Census 1990, summary file 1, table P6, field P06001

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_90SF1
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) formats are 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-file1-1990/data-download

Access Instructions: Data accessible via direct download.

Available Time Period:

Time Period Information:

Single Date/Time:

Calendar Date: 2012

Metadata Date: 2012/03/13
Metadata Review Date: 2013/07/24
Metadata Future Review Date: 2014/07/24
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