Datasets > Malawi > 2020-2024

Satellite detected water extents between 17 and 21 March 2023 over Southern Region, Malawi

The Centre for Humanitarian Data · 2023 Full Details

Full Details

Title
Satellite detected water extents between 17 and 21 March 2023 over Southern Region, Malawi
Description
**UNOSAT code TC20230314MWI, GDACS Id: 1000961** This map illustrates cumulative satellite-detected surface waters in Southern Region, Malawi between 17 to 21 March 2023 as observed from: VIIRS imagery from 17 to 21 March 2023; Sentinel-1 imagery acquired on 17 Mar. 2023 and Sentinel-2 imagery acquired on 21 Mar. 2023. Within the analyzed area of about 30,000 km2, about 2,100 km2 of land appear to be flooded. Based on Worldpop population data and the detected surface waters in the analyzed area, ~280,000 people are potentially exposed or living close to flooded areas. This is a preliminary analysis and 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 the backscattering properties of the radar signal.
Creator
UN Operational Satellite Applications Programme (UNOSAT)
Publisher
The Centre for Humanitarian Data
Temporal Coverage
2023-03-23
Date Issued
2023-03-24
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.

Resource Class

Theme

Place

Local Collection

Location

Links

Cite and Reference

  • Citation
    UN Operational Satellite Applications Programme (UNOSAT) (2023). Satellite detected water extents between 17 and 21 March 2023 over Southern Region, Malawi. The Centre for Humanitarian Data. https://data.humdata.org/dataset/0350ec50-e733-4dbd-b8cb-63469b6f80d2 (dataset)
  • BTAA Geoportal Link

View more items like this one...

Satellite detected water extent and evolution over Southern Region in Malawi & Tete and...

2023

Satellite detected water extent over Southern Region, Malawi as of 14 March 2023

2023

Satellite detected water extent over Balaka, Neno and Zomba districts, Southern region,...

2022

Satellite detected water extent and evolution over Sofala and Zambezia Provinces, Mozam...

2023

Satellite detected water extent over Malawi and Mozambique as of 26 January 2022

2022

Satellite detected water extent over Matutuine District, Maputo Provinces, Mozambique a...

2023

Satellite detected water extent over Kigali City, Southern, Northern, Western, and East...

2023

Satellite detected water extents in Maganja Da Costa, Namacurra & Nicoadala Districts, ...

2022

Satellite detected water extent over Shabelle District, Shabelle Region, Ethiopia as of...

2023

Satellite detected water extent over Zambezia Provinces, Mozambique as of 24 March 2023

2023