Datasets > Madagascar > 2020-2024

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

The Centre for Humanitarian Data · 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
The Centre for Humanitarian Data
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 2025-08-23.

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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. The Centre for Humanitarian Data. https://data.humdata.org/dataset/998f8428-d68d-4249-9e09-93a05a67de6e (dataset)
  • BTAA Geoportal Link

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