Dataset Identification:
Resource Abstract:
- description: Gridded Population of the World, Version 2 (GPWv2) consists of estimates of human population for the years 1995
and 1990 by 2.5 arc-minute grid cells. The data products are population counts (raw counts), population densities (per square
km), and land area (actual area net of ice and water), all of which are available in two GIS-compatible data formats at the
global, continent (Antarctica not included), and country levels. 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 GPWv2 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. GPWv2 is produced by the Columbia University Center for International Earth Science Information Network
(CIESIN) in collaboration with the International Food Policy Research Institute (IFPRI) and the World Resources Institute
(WRI). (Suggested Usage: 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.); abstract: Gridded Population of the World, Version 2 (GPWv2)
consists of estimates of human population for the years 1995 and 1990 by 2.5 arc-minute grid cells. The data products are
population counts (raw counts), population densities (per square km), and land area (actual area net of ice and water), all
of which are available in two GIS-compatible data formats at the global, continent (Antarctica not included), and country
levels. 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 GPWv2 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. GPWv2 is produced by the Columbia
University Center for International Earth Science Information Network (CIESIN) in collaboration with the International Food
Policy Research Institute (IFPRI) and the World Resources Institute (WRI). (Suggested Usage: 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.)
Citation
- Title Gridded Population of the World, Version 2 (GPWv2).
-
- creation Date
2018-07-03T16:17:27.939617
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T23:18:56Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T23:18:56Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
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- Contact information
-
-
- Address
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- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:f07c10dc-f950-41df-8a40-848823ebc50c
Metadata record format is ISO19139 XML (MD_Metadata)