Identification_Information: Citation: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): National Identifier Grid, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: raster, vector, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4TD9VDP Description: Abstract: The Gridded Population of the World, Version 4 (GPWv4): National Identifier Grid, Revision 11 is a raster representation of nation-states in GPWv4 for use in aggregating population data. This data set was produced from the input census units which were used to create a raster surface where pixels that cover the same census data source (most often a country or territory) have the same value. Note that these data are not official representations of country boundaries; rather, they represent the area covered by the input data. In cases where multiple countries overlapped a given pixel (e.g. on national borders), the pixels were assigned the country code of the input data set which made up the majority of the land area. The data file was produced as a global raster at 30 arc-second (~1 km at the equator) resolution. To enable faster global processing, and in support of research communities, the 30 arc-second data were aggregated to 2.5 arc-minute, 15 arc-minute, 30 arc-minute and 1 degree resolutions. Each level of aggregation results in the loss of one or more countries with areas smaller than the cell size of the final raster. Rasters of all resolutions were also converted to polygon shapefiles. Purpose: To provide a raster representation of nation-states in GPWv4 for use in aggregating population data. Supplemental_Information: The documentation for this data set is available at http://sedac.ciesin.columbia.edu/data/set/gpw-v4-national-identifier-grid-rev11/docs. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20100701 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: 180.000000 North_Bounding_Coordinate: 90.000000 South_Bounding_Coordinate: -90.000000 Keywords: Theme: Theme_Keyword_Thesaurus: GCMD Science Keywords, Version 8.6 Theme_Keyword: EARTH SCIENCE > HUMAN DIMENSIONS > BOUNDARIES Theme: Theme_Keyword_Thesaurus: SEDAC Theme Theme_Keyword: Population Theme: Theme_Keyword_Thesaurus: Data Granularity Theme_Keyword: Country Theme_Keyword: Continent Theme_Keyword: Global Theme: Theme_Keyword_Thesaurus: ISO Topic Theme_Keyword: Society Place: Place_Keyword_Thesaurus: CIESIN Location Terms, Version 3.1 Place_Keyword: Global Access_Constraints: None Use_Constraints: This work is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). 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: New York Postal_Code: 10964 Country: United States Contact_Voice_Telephone: +1 845-365-8920 Contact_Facsimile_Telephone: +1 845-365-8922 Contact_Electronic_Mail_Address: ciesin.info@ciesin.columbia.edu Browse_Graphic: Browse_Graphic_File_Name: https://sedac.ciesin.columbia.edu/downloads/maps/gpw-v4/gpw-v4-national-identifier-grid-rev11/gpw-v4-national-identifier-grid-rev11-thumbnail.jpg Browse_Graphic_File_Description: Global National Identifier Grid (2010) Browse_Graphic_File_Type: JPEG Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University, and Centro Internacional de Agricultura Tropical - CIAT Publication_Date: 20051231 Title: Gridded Population of the World, Version 3 (GPWv3): National Identifier Grid Edition: 3.00 Geospatial_Data_Presentation_Form: raster Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H49W0CDN Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20160711 Title: Gridded Population of the World, Version 4 (GPWv4): National Identifier Grid Edition: 4.00 Geospatial_Data_Presentation_Form: raster Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H41V5BX1 Cross_Reference: Citation_Information: Originator: Doxsey-Whitfield, E., K. MacManus, S. B. Adamo, L. Pistolesi, J. Squires, O. Borkovska and S. R. Baptista Publication_Date: 20150724 Title: Taking Advantage of the Improved Availability of Census Data: A First Look at the Gridded Population of the World, Version 4 Geospatial_Data_Presentation_Form: journal article Series_Information: Series_Name: Papers in Applied Geography Issue_Identification: 1(3): 226-235 Online_Linkage: https://doi.org/10.1080/23754931.2015.1014272 Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20171222 Title: Gridded Population of the World, Version 4 (GPWv4): National Identifier Grid, Revision 10 Edition: 4.10 Geospatial_Data_Presentation_Form: raster, vector, map Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4T72FDB Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): Administrative Unit Center Points with Population Estimates, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: vector, tabular, database, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4BC3WMT Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): Data Quality Indicators, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: raster, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H42Z13KG Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): Land and Water Area, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: raster, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4Z60M4Z Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): Population Count, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: raster, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4JW8BX5 Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: raster, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H49C6VHW Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181213 Title: Documentation for the Gridded Population of the World, Version 4 (GPWv4), Revision 11 Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H45Q4T5F Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): Basic Demographic Characteristics, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: raster, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H46M34XX Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): Population Count Adjusted to Match 2015 Revision of UN WPP Country Totals, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: raster, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4PN93PB Cross_Reference: Citation_Information: Originator: Center for International Earth Science Information Network - CIESIN - Columbia University Publication_Date: 20181231 Title: Gridded Population of the World, Version 4 (GPWv4): Population Density Adjusted to Match 2015 Revision UN WPP Country Totals, Revision 11 Edition: 4.11 Geospatial_Data_Presentation_Form: raster, map, map service Publication_Information: Publication_Place: Palisades, NY Publisher: NASA Socioeconomic Data and Applications Center (SEDAC) Online_Linkage: https://doi.org/10.7927/H4F47M65 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 17400 Column_Count: 43200 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.008333 Longitude_Resolution: 0.008333 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 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: New York Postal_Code: 10964 Country: United States 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_GPWv4_NATIDEN_R11 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 +1 845-465-8920 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: Fees: 0 Ordering_Instructions: The data in American Standard Code for Information Interchange (.asc), and Georeferenced Tagged Image File Format (.tif) formats; the maps in Portable Document Format (.pdf), and Portable Network Graphics (.png) formats; and the web map services are available from the NASA Socioeconomic Data and Applications Center (SEDAC). Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ASCII File_Decompression_Technique: Unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/gpw-v4-national-identifier-grid-rev11/data-download Access_Instructions: Data accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: GeoTIFF File_Decompression_Technique: Unzip Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/gpw-v4-national-identifier-grid-rev11/data-download Access_Instructions: Data accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: PDF Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/gpw-v4-national-identifier-grid-rev11/maps Access_Instructions: Maps accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: PNG Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/gpw-v4-land-water-area-rev11/maps Access_Instructions: Maps accessible via the data set landing page. Digital_Form: Digital_Transfer_Information: Format_Name: WMS Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://sedac.ciesin.columbia.edu/data/set/gpw-v4-land-water-area-rev11/maps/services Access_Instructions: Web Map Services accessible via the data set landing page. Available_Time_Period: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20190228 Ending_Date: Present Metadata_Reference_Information: Metadata_Date: 20180822 Metadata_Review_Date: 20220831 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: New York Postal_Code: 10964 Country: United States 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