Datasets > Madagascar > 2020-2024

Satellite detected water extents in Isandra, Lalangina, and Vohibato districts, Haute Matsiatra region, as of 12 Feb. 22

Humanitarian Data Exchange · 2022 Full Details

Full Details

Title
Satellite detected water extents in Isandra, Lalangina, and Vohibato districts, Haute Matsiatra region, as of 12 Feb. 22
Description
**UNOSAT code: TC20220201MDG** This map illustrates satellite-detected surface waters in Isandra, Lalangina, and Vohibato districts, Haute Matsiatra region, Madagascar observed from a Kompsat5 image acquired on 12 February 2022 at 06:14 local time. Within the analyzed area about 1,700 km2, a total of about 10 km2 of lands appear to be flooded. The water extent appears to have decreased of about 40 km2 since 8 February 2022. Based on Worldpop population data and the detected surface waters, about 2,400 people are potentially exposed or living close to flooded areas. This is a preliminary analysis that has not yet been validated in the field. Please send ground feedback to United Nations Satellite Centre (UNOSAT). Important note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal.
Creator
UN Operational Satellite Applications Programme (UNOSAT)
Publisher
Humanitarian Data Exchange
Temporal Coverage
2022-02-17
Date Issued
2022-02-18
License
http://www.opendefinition.org/licenses/cc-by-sa
Access Rights
Public
Date Added
August 23, 2025
Provenance Statement
The metadata for this resource was last retrieved from Humanitarian Data Exchange on 2026-01-15.

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Cite and Reference

  • Citation
    UN Operational Satellite Applications Programme (UNOSAT) (2022). Satellite detected water extents in Isandra, Lalangina, and Vohibato districts, Haute Matsiatra region, as of 12 Feb. 22. Humanitarian Data Exchange. https://data.humdata.org/dataset/998f8428-d68d-4249-9e09-93a05a67de6e (dataset)
  • BTAA Geoportal Link

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