Identification_Information: 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: 20000401 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 Data_Quality_Information: 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. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Spatial_Reference_Information: 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 Entity_and_Attribute_Information: 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 Distribution_Information: 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_Reference_Information: Metadata_Date: 20060705 Metadata_Review_Date: 20130228 Metadata_Future_Review_Date: 20140228 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