Identification |
Citation |
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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 |
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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 |
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1995-01-01-01:01:01 1990-01-01-01:01:01 |
Spatial Domain |
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SouthWest Extent: 58S, 180W; NorthEast Extent: 85N, 180E |
GCMD Theme Keywords
Category | Topic | Term | Variable |
---|---|---|---|
EARTH SCIENCE | HUMAN DIMENSIONS | POPULATION | POPULATION DISTRIBUTION |
EARTH SCIENCE | HUMAN DIMENSIONS | POPULATION | POPULATION SIZE |
CIESIN Theme Keywords
Category | Topic | Term | Variable |
---|---|---|---|
CIESIN | POPULATION DYNAMICS | DEMOGRAPHIC CHARACTERISTICS | POPULATION DISTRIBUTION |
CIESIN | POPULATION DYNAMICS | DEMOGRAPHIC CHARACTERISTICS | POPULATION SIZE |
General Theme Keywords |
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GLOBAL POPULATION |
POPULATION DENSITY |
POPULATION ESTIMATES |
POPULATION STUDIES |
GPW VERSION 2 |
GPW V2 |
Place Keywords |
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Global |
Access Constraints |
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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 |
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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 |
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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 |
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http://sedac.ciesin.columbia.edu/plue/gpw/credits.html |
Native Data Set Environment |
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Windows and UNIX |
Cross Reference |
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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
Title: Gridded Population of the World (GPW), Version 2.0: Maps |
Distribution |
DATA CENTER |
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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 |
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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 |
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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 |
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2001-04-12-10:07:49 |
Metadata Revision Date |
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2001-06-19-12:00:00 |
Metadata Review Date |
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2001-06-19-12:00:00 |
Metadata Future Review Date |
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2002-06-19-01:01:01 |
Metadata Status |
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GP |
Metadata Contract |
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SEDAC |
Metadata Local Record Number |
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5046 |
Metadata Contact |
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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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