2024 Data (Information)
GRID3 TZA - Settlement Extents v3.0
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
- GRID3 TZA - Settlement Extents v3.0 - Data Release Notes .pdf application/pdf 608 KB Download File
- GRID3_TZA_settlement_extents_v3_0.zip application/zip 548 MB Download File
- 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
- Previous version:
- GRID3 Tanzania Settlement Extents, Version 02
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