Data (Information)

GRID3 TZA - Settlement Extents v3.0

Center for International Earth Science Information Network

The GRID3 TZA - Settlement Extents v3.0 consists of a geographic representation of settlements in Tanzania, in two forms: 1) settlement polygons, and 2) spatial points depicting the centroids of settled grid cells at 3-arc seconds (or ~100 meters) contained within settlement polygons. Both layers include attributes as described in the codebooks. Data inputs and methodology are described in the DataRelease Notes (PDF).

The current version supersedes GRID3 Tanzania Settlement Extents, Version 02; the following changes were made:

- Development of a new methodology to derive building counts and settlement polygons with open data.
- Estimation of a probability value for settlement polygons
- Addition of a building-area measure
- Replacement of degree of urbanization with classification based on built-up areas, small settlement areas, and hamlets
- Elimination of building-count ranges
- Elimination of variable comparing to previous versions

Keywords: settlements

Geographic Areas

Files

  • thumnail for GRID3 TZA - Settlement Extents v3.0 - Data Release Notes .pdf GRID3 TZA - Settlement Extents v3.0 - Data Release Notes .pdf application/pdf 608 KB Download File
  • thumnail for GRID3_TZA_settlement_extents_v3_0.zip GRID3_TZA_settlement_extents_v3_0.zip application/zip 548 MB Download File
  • thumnail for GRID3_TZA_settlement_grid_v3_0.zip GRID3_TZA_settlement_grid_v3_0.zip application/zip 222 MB Download File

More About This Work

Academic Units
Center for International Earth Science Information Network
Series
GRID3
Published Here
November 6, 2024

Related Items

Notes

Dataset citation:
Center for International Earth Science Information Network (CIESIN), Columbia University. 2024. GRID3 TZA - Settlement Extents v3.0. New York: GRID3. https://doi.org/10.7916/asej-zz08. Accessed [DAY MONTH YEAR].

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Copyright 2024. The Trustees of Columbia University in the City of New York.

Data license:
The data and accompanying document are licensed under a Creative Commons Attribution-ShareAlike 4.0 International, CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0) and specified in legal code (https://creativecommons.org/licenses/by-sa/4.0/legalcode).

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The authors of this dataset appreciate feedback regarding the data, including suggestions, discovery of errors, difficulties in using the data, and format preferences. For dataset-related questions, please send an email to: info@ciesin.columbia.edu