Identification_Information: 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: 19900401 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 Data_Quality_Information: 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. Spatial_Data_Organization_Information: 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: 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 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_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_Reference_Information: Metadata_Date: 20120313 Metadata_Review_Date: 20130724 Metadata_Future_Review_Date: 20140724 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