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Gridded Population of the World (GPW), Version 2.0

CONTENTS - Identification - Distribution - Metadata Reference

2001-06-19-12:00:00
Identification
Citation
Title: Gridded Population of the World (GPW), Version 2.0
Originator: Center for International Earth Science Information Network (CIESIN), Columbia University; International Food Policy Research Institute (IFPRI); and World Resources Institute (WRI)
Publication Date: 2000
Geospatial Data Presentation Form: online
Publication Place: Palisades, NY
Publisher: CIESIN, Columbia University
Website: http://sedac.ciesin.columbia.edu/plue/gpw/

Description
Abstract: Gridded Population of the World (GPW), Version 2.0 (v2) consists of estimates of human population for the years 1995 and 1990 by 2.5 arc-minute grid cells. The 3 products are population counts (raw counts), population densities (per square km), and land area (actual area net of ice and water), which are all available in two GIS-compatible data formats. A proportional allocation gridding algorithm, utilizing 127,105 national and sub-national administrative units, is used to assign population values to grid cells. Advantages to GPW v2 include higher quality data from the U.S., Africa, Australia, Canada, Europe, Russia, New Zealand, and India; 8 times the number of administrative units; national population estimates that have been adjusted to match the United Nations national estimated population for each country; a proportional allocation algorithm that reduces error with multiple input polygons; and higher spatial resolution.

GPW v2 is produced by the Columbia University Center for International Earthy Science Information Network (CIESIN) in collaboration with the International Food Policy Research Institute (IFPRI) and the World Resources Institute (WRI).

Purpose: To serve a wide user community by providing the latest data on human population distribution that can be used in interdisciplinary studies of the environment.

Language: English

Project/Campaign: GPW > Global Population of the World

Time Period Information
1995-01-01-01:01:01
1990-01-01-01:01:01

Spatial Domain
SouthWest Extent: 58S, 180W; NorthEast Extent: 85N, 180E

GCMD Theme Keywords

CategoryTopicTermVariable
EARTH SCIENCEHUMAN DIMENSIONSPOPULATIONPOPULATION DISTRIBUTION
EARTH SCIENCEHUMAN DIMENSIONSPOPULATIONPOPULATION SIZE

CIESIN Theme Keywords

CategoryTopicTermVariable
CIESINPOPULATION DYNAMICSDEMOGRAPHIC CHARACTERISTICSPOPULATION DISTRIBUTION
CIESINPOPULATION DYNAMICSDEMOGRAPHIC CHARACTERISTICSPOPULATION SIZE

General Theme Keywords
GLOBAL POPULATION
POPULATION DENSITY
POPULATION ESTIMATES
POPULATION STUDIES
GPW VERSION 2
GPW V2

Place Keywords
Global

Access Constraints
Users are free to copy CIESIN-authored materials for personal and noncommercial use from the ftp site as long as content is not altered, and copyright ownership by CIESIN is acknowledged. All other rights are reserved.

Use Constraints
These data are for noncommercial use only. No third party distribution of all, or parts, of the electronic files is authorized. Additionally, due to restrictions on the input data for China, the data from the China portion of Gridded Population of the World (GPW), Version 2.0 are restricted to scientific research use only. The data used in the creation of this product were provided to CIESIN by the organizations identified in the source data table (available via http://sedac.ciesin.columbia.edu/plue/gpw/).

Point of Contact
Name: USER SERVICES, SEDAC
Phone: +1-845-365-8920
Fax: +1-845-365-8922
Email: ciesin.info@ciesin.columbia.edu
Address:
        
     Socioeconomic Data and Applications Center (SEDAC)
     Columbia University     
     61 Route 9W
     P.O. Box 1000
     Palisades, New York 10964
     USA    

Data Set Credit
http://sedac.ciesin.columbia.edu/plue/gpw/credits.html

Native Data Set Environment
Windows and UNIX

Cross Reference
Title: Gridded Population of the World (GPW), Version 2.0: Documentation
Originator: Center for International Earth Science Information Network (CIESIN), Columbia University; International Food Policy Research Institute (IFPRI); and World Resources Institute (WRI)
Publication Date: 2000
Geospatial Data Presentation Form: online
Publication Place: Palisades, NY
Publisher: CIESIN, Columbia University
Website: http://sedac.ciesin.columbia.edu/plue/gpw/documentation.html

Title: Gridded Population of the World (GPW), Version 2.0: Applications
Originator: Center for International Earth Science Information Network (CIESIN), Columbia University; International Food Policy Research Institute (IFPRI); and World Resources Institute (WRI)
Publication Date: 2000
Geospatial Data Presentation Form: online
Publication Place: Palisades, NY
Publisher: CIESIN, Columbia University
Website: http://sedac.ciesin.columbia.edu/plue/gpw/applications.html

Title: Gridded Population of the World (GPW), Version 2.0: Maps
Originator: Center for International Earth Science Information Network (CIESIN), Columbia University; International Food Policy Research Institute (IFPRI); and World Resources Institute (WRI)
Publication Date: 2000
Geospatial Data Presentation Form: online
Publication Place: Palisades, NY
Publisher: CIESIN, Columbia University
Website: http://sedac.ciesin.columbia.edu/plue/gpw/maps.html

Distribution

DATA CENTER
Data Center Name: SEDAC > Socioeconomic Data and Applications Center
Data Center URL: http://sedac.ciesin.columbia.edu/
Data Center Contact: USER SERVICES, SEDAC
Phone: +1-845-365-8920
Fax: +1-845-365-8922
Email: ciesin.info@ciesin.columbia.edu
Address:
     Socioeconomic Data and Applications Center (SEDAC)
     Columbia University
     61 Route 9W
     P.O. Box 1000
     Palisades, New York 10964
     USA

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 (845) 365-8920 or via Internet 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 express 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 are available from the Socioeconomic Data and Application Center (SEDAC) as zipped individual ArcInfo interchange files and zipped Band Interleaved by Line (BIL) formats via FTP at ftp://ftp.ciesin.columbia.edu/pub/gpw/.

Access Instructions: Data accessible via FTP

Format Name: Band Interleaved by Line (BIL) and ArcInfo Interchange files

File Decompression Technique: Unzip

Metadata Reference

Metadata Creation Date
2001-04-12-10:07:49

Metadata Revision Date
2001-06-19-12:00:00

Metadata Review Date
2001-06-19-12:00:00

Metadata Future Review Date
2002-06-19-01:01:01

Metadata Status
GP

Metadata Contract
SEDAC

Metadata Local Record Number
5046

Metadata Contact
Name: METADATA ADMINISTRATION, CIESIN
Phone: +1-845-365-8988
Fax: +1-845-365-8922
Email: metadata@ciesin.columbia.edu
Address:
     Socioeconomic Data and Applications Center (SEDAC)
     Columbia University
     61 Route 9W
     P.O. Box 1000
     Palisades, New York 10964
     USA

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