NASA Socioeconomic Data and Applications Center (SEDAC) – Hosted by CIESIN at Columbia University

U.S. Census Grids

Summary File 1, v1 (2000)

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Identification Information:

Citation:
Citation Information:
Originator: Seirup, L., and G. Yetman
Publication Date: 20060531
Publication Time:
Title:
U.S. Census Grids (Summary File 1), 2000
Edition: 1.00
Geospatial Data Presentation Form: raster, map
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Other Citation Details:
Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000
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Description:
Abstract:
U.S. Census Grids (Summary File 1), 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 age, race, ethnicity, and housing, for the United States and Puerto Rico for data integration.
Supplemental Information:
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 20000401
Time of Day:
Currentness Reference:
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
Data Set G-Polygon:
Data Set G-Polygon Outer G-Ring:
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Data Set G-Polygon Exclusion G-Ring:
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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: 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
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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 Person:
Contact Position:
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 TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
Browse Graphic:
Browse Graphic File Name: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000/image/thumbnail
Browse Graphic File Description:
Thumbnail Image
Browse Graphic File Type: JPG
Browse Graphic:
Browse Graphic File Name: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000/image/small
Browse Graphic File Description:
Larger Image
Browse Graphic File Type: JPG
Browse Graphic:
Browse Graphic File Name: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000/image/preview
Browse Graphic File Description:
Largest Image
Browse Graphic File Type: JPG
Data Set Credit:
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Native Data Set Environment:
Cross Reference:
Citation Information:
Originator: Seirup, L., and G. Yetman
Publication Date: 20060531
Publication Time:
Title:
U.S. Census Grids (Summary File 1), 2000: Metropolitan Statistical Areas
Edition: 1.00
Geospatial Data Presentation Form: raster, map
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Other Citation Details:
Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000-msa
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Citation Information:
Originator: Seirup, L., and G. Yetman
Publication Date: 20060531
Publication Time:
Title:
U.S. Census Grids (Summary File 3), 2000: Metropolitan Statistical Areas
Edition: 1.00
Geospatial Data Presentation Form: raster, map
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
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Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-2000-msa
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Citation Information:
Originator: Seirup, L., and G. Yetman
Publication Date: 20060531
Publication Time:
Title:
U.S. Census Grids (Summary File 3), 2000
Edition: 1.00
Geospatial Data Presentation Form: raster, map
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
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Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-2000
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Citation Information:
Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 2012
Publication Time:
Title:
U.S. Census Grids (Summary File 1), 1990
Edition: 1.00
Geospatial Data Presentation Form: raster
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
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Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-1990
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Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 2012
Publication Time:
Title:
U.S. Census Grids (Summary File 1), 1990: Metropolitan Statistical Areas
Edition: 1.00
Geospatial Data Presentation Form: raster
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
Other Citation Details:
Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-1990-msa
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Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 2012
Publication Time:
Title:
U.S. Census Grids (Summary File 3), 1990: Metropolitan Statistical Areas
Edition: 1.00
Geospatial Data Presentation Form: raster
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
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Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-1990-msa
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Citation Information:
Originator: Seirup, L., G. Yetman, and L. Razafindrazay
Publication Date: 2012
Publication Time:
Title:
U.S. Census Grids (Summary File 3), 1990
Edition: 1.00
Geospatial Data Presentation Form: raster
Series Information:
Series Name:
Issue Identification:
Publication Information:
Publication Place: Palisades, NY
Publisher: NASA Socioeconomic Data and Applications Center (SEDAC)
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Online Linkage: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file3-1990
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Data Quality Information:

Attribute Accuracy:
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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.<BR> 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.
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Spatial Data Organization Information:

Indirect Spatial Reference Method:
Direct Spatial Reference Method: Raster
Raster Object Information:
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Column Count:
Vertical Count:
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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
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Entity and Attribute Information:

Detailed Description:
Entity Type:
Entity Type Label:
Entity Type Definition:
Entity Type Definition Source:
Attribute:
Attribute Label: a1
Attribute Definition:
Age, under 1 year
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P14, sum of fields P014003 and P014024
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Attribute Label: a2
Attribute Definition:
Age, 1 to 4 years
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P14, sum of fields P014004, P014005, P014006, P014007, P014025, P014026, P014027, P014028
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Attribute:
Attribute Label: a3
Attribute Definition:
Age, 5 to 17 years
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P12, sum of fields P012004, P012005, P012006, P012028, P012029, P012030
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Attribute Label: a4
Attribute Definition:
Age, 18 to 24 years
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P12, sum of fields P012007, P012008, P012009, P012010, P012031, P012032, P012033, P012034
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Attribute Label: a5
Attribute Definition:
Age, 25 to 64 years
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P12, sum of fields P012011, P012012, P012013, P012014, P012015, P012016, P012017, P012018, P012019, P012035, P012036, P012037, P012038, P012039, P012040, P012041, P012042, P012043
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Attribute Label: a6
Attribute Definition:
Age, 65 to 79 years
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P12, sum of fields P012020, P012021, P012022, P012023, P012044, P012045, P012046, P012047
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Attribute Label: a7
Attribute Definition:
Age, 80 years and over
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P12, sum of fields P012024, P012025, P012048, P012049
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Attribute Label: am
Attribute Definition:
Race, American Indian and Alaska Native alone
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P7, field P007004
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Attribute:
Attribute Label: area
Attribute Definition:
Area of the grid cell in square meters
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Attribute Label: as
Attribute Definition:
Race, Asian alone
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P7, field P007005
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Attribute Label: bl
Attribute Definition:
Race, Black or African American alone
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P7, field P007003
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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 2000, summary file 1, table P18, field P018015
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Attribute Label: hh
Attribute Definition:
Households
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P15, field P015001
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Attribute Label: hhp
Attribute Definition:
Population in households
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P16, field P016001
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Attribute Label: hi
Attribute Definition:
Hispanic or Latino
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P8, field P008010
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Attribute Label: hu
Attribute Definition:
Housing units
Attribute Definition Source:
U.S. Census 2000, summary file 1, table geo, field hu100
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Attribute Label: hulp
Attribute Definition:
Occupied housing units: 1-person household
Attribute Definition Source:
U.S. Census 2000, summary file 1, table H13, field H013002
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Attribute Label: nhb
Attribute Definition:
Not Hispanic or Latino, Black or African American alone
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P8, field P008004
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Attribute Label: nhw
Attribute Definition:
Not Hispanic or Latino, White alone
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P8, field P008003
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Attribute:
Attribute Label: occ
Attribute Definition:
Occupied housing units
Attribute Definition Source:
U.S. Census 2000, summary file 1, table H4, field H004001
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value:
Enumerated Domain Value Definition:
Enumerated Domain Value Definition Source:
Beginning Date of Attribute Values:
Ending Date of Attribute Values:
Attribute Value Accuracy Information:
Attribute Value Accuracy:
Attribute Value Accuracy Explanation:
Attribute Measurement Frequency:
Attribute:
Attribute Label: own
Attribute Definition:
Occupied housing units: owner occupied
Attribute Definition Source:
U.S. Census 2000, summary file 1, table H4, field H004002
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value:
Enumerated Domain Value Definition:
Enumerated Domain Value Definition Source:
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Ending Date of Attribute Values:
Attribute Value Accuracy Information:
Attribute Value Accuracy:
Attribute Value Accuracy Explanation:
Attribute Measurement Frequency:
Attribute:
Attribute Label: pi
Attribute Definition:
Race, Native Hawaiian and Other Pacific Islander alone
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P7, field P007006
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value:
Enumerated Domain Value Definition:
Enumerated Domain Value Definition Source:
Beginning Date of Attribute Values:
Ending Date of Attribute Values:
Attribute Value Accuracy Information:
Attribute Value Accuracy:
Attribute Value Accuracy Explanation:
Attribute Measurement Frequency:
Attribute:
Attribute Label: pop
Attribute Definition:
Population
Attribute Definition Source:
U.S. Census 2000, summary file 1, table geo, field pop100
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value:
Enumerated Domain Value Definition:
Enumerated Domain Value Definition Source:
Beginning Date of Attribute Values:
Ending Date of Attribute Values:
Attribute Value Accuracy Information:
Attribute Value Accuracy:
Attribute Value Accuracy Explanation:
Attribute Measurement Frequency:
Attribute:
Attribute Label: sea
Attribute Definition:
Vacant housing units: For seasonal, recreational, or occasional use
Attribute Definition Source:
U.S. Census 2000, summary file 1, table H5, field H005005
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value:
Enumerated Domain Value Definition:
Enumerated Domain Value Definition Source:
Beginning Date of Attribute Values:
Ending Date of Attribute Values:
Attribute Value Accuracy Information:
Attribute Value Accuracy:
Attribute Value Accuracy Explanation:
Attribute Measurement Frequency:
Attribute:
Attribute Label: wh
Attribute Definition:
Race, White alone
Attribute Definition Source:
U.S. Census 2000, summary file 1, table P7, field P007002
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value:
Enumerated Domain Value Definition:
Enumerated Domain Value Definition Source:
Beginning Date of Attribute Values:
Ending Date of Attribute Values:
Attribute Value Accuracy Information:
Attribute Value Accuracy:
Attribute Value Accuracy Explanation:
Attribute Measurement Frequency:
Overview Description:
Entity and Attribute Overview:
Entity and Attribute Detail Citation:
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Distribution Information:

Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: NASA Socioeconomic Data and Applications Center (SEDAC)
Contact Person:
Contact Position:
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 TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: ciesin.info@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
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:
Digital Form:
Digital Transfer Information:
Format Name:
Format Version Number:
Format Specification:
Format Information Content:
File Decompression Technique:
Transfer Size:
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name:
Access Instructions:
Online Computer and Operating System:
Fees:
Ordering Instructions:
The data in American Standard Code for Information Interchange (ASCII) and Geographic Tagged Image File Format (GeoTIFF) files and maps n Portable Document Format (PDF) and Joint Photographic Experts Group (JPG) formats are available from the NASA Socioeconomic Data and Applications Center (SEDAC).
Turnaround:
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: GeoTIFF, ASCII
Format Version Number:
Format Specification:
Format Information Content:
File Decompression Technique: Unzip
Transfer Size:
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000/data-download
Access Instructions:
Data accessible via direct download.
Online Computer and Operating System:
Digital Form:
Digital Transfer Information:
Format Name: PDF, JPG
Format Version Number:
Format Specification:
Format Information Content:
File Decompression Technique:
Transfer Size:
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: http://sedac.ciesin.columbia.edu/data/set/usgrid-summary-file1-2000/maps
Access Instructions:
Maps accessible via direct download.
Online Computer and Operating System:
Fees:
Ordering Instructions:
Turnaround:
Custom Order Process:
Technical Prerequisites:
Available Time Period:
Time Period Information:
Single Date/Time:
Calendar Date: 2006
Time of Day:
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Metadata Reference Information:

Metadata Date: 20060705
Metadata Review Date: 20120713
Metadata Future Review Date: 20130713
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Center for International Earth Science Information Network (CIESIN) Metadata Administration
Contact Person:
Contact Position:
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 TDD/TTY Telephone:
Contact Facsimile Telephone: +1 845-365-8922
Contact Electronic Mail Address: metadata@ciesin.columbia.edu
Hours of Service:
Contact Instructions:
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Access Constraints:
Metadata Use Constraints:
Metadata Security Information:
Metadata Security Classification System:
Metadata Security Classification:
Metadata Security Handling Description:
Metadata Extensions:
Online Linkage:
Profile Name:
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