[dataset] GRUMP 1 Urban Extents Grid

The Global Rural-Urban Mapping Project, Version 1 (GRUMPv1) consists of estimates of human population for the years 1990, 1995, and 2000 by 30 arc-second (1km) grid. The urban extent grids distinguish urban and rural areas based on a combination of population counts (persons), settlement points, and the presence of Nighttime Lights . Areas are defined as urban where contiguous lighted cells from the Nighttime Lights or approximated urban extents based on buffered settlement points for which the total population is greater than 5,000 persons. This dataset is produced by the Columbia University Center for International Earth Science Information Network (CIESIN) in collaboration with the International Food Policy Research Institute (IFPRI), The World Bank, and Centro Internacional de Agricultura Tropical (CIAT)

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Data and Resources

Additional Info

Field Value
Identifier global-rural-urban-mapping-project-version-1-grumpv1-urban-extents-grid
Documentation https://sedac.ciesin.columbia.edu/data/set/grump-v1-urban-extents
Contact Point Socioeconomic Data and Applications Center (SEDAC) User Services
Contact Point - ORCID iD or e-mail adress
Dataset DOI https://doi.org/10.7927/H4GH9FVG
Information Website
Theme / Vocabulary / Ontology https://inspire.ec.europa.eu/theme/pd
Coordinate Reference System http://www.opengis.net/def/crs/OGC/0/4326
Spatial Resolution 0.0083333333333
Spatial Resolution Measured As angular distance
Temporal Coverage
Temporal Resolution P1D
Data Quality Metric

Quantitative Attribute Accuracy as Root Mean Square Error (RMSE)

https://geokur-dmp.geo.tu-dresden.de/quality-register#QuantitativeAttributeAccuracyasRootMeanSquareErrorRMSE

  • value of quality metric:11.09
  • ground truth dataset:Official Swedish population count
  • confidence term:
  • confidence value:
  • thematic representativity:
  • spatial representativity:global
  • temporal representativity:
  • name of quality source:A pixel level evaluation of five multitemporal global gridded population datasets: a case study in Sweden, 1990–2015
  • type of quality source:publication
  • link to quality source:https://link.springer.com/content/pdf/10.1007/s11111-020-00360-8.pdf

Quantitative Attribute Accuracy as Mean Absolute Error (MAE)

https://geokur-dmp.geo.tu-dresden.de/quality-register#QuantitativeAttributeAccuracyasMeanAbsoluteErrorMAE

  • value of quality metric:1.45
  • ground truth dataset:Official Swedish population count
  • confidence term:
  • confidence value:
  • thematic representativity:
  • spatial representativity:global
  • temporal representativity:
  • name of quality source:A pixel level evaluation of five multitemporal global gridded population datasets: a case study in Sweden, 1990–2015
  • type of quality source:publication
  • link to quality source:https://link.springer.com/content/pdf/10.1007/s11111-020-00360-8.pdf

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    Is Part of

    Was derived from
Last Updated October 7, 2021, 12:52 (UTC)
Created March 1, 2021, 10:44 (UTC)

Dataset extent