Product ID: 3535 - English
Published: 28 Apr, 2022
GLIDE: FL20220412PHL

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This map illustrates satellite detected waters, the potentially exposed population, and the related potentially affected croplands as deduced using a satellite TerraSAR-X image acquired on 26 April 2021 at 05:34 local time acquired over Leyte Province, Region VIII, Philippines.
Within the analyzed area of about 30,000 hectares, a total of about 2,000 hectares of lands appear to be flooded. The water extent appears to have increased of about 900 hectares since 21 April 2021.
Based on Worldpop population data and the detected surface waters, about 8,000 people are potentially exposed or living close to flooded areas. The exposed population appears to have increased with about 3,000 people since 21 April 2021.
In this area, about 1,800 km2 of croplands appear to be likely affected by the flood waters. The affected croplands seems to have increased with about 900 hectares since 21 April 2021.
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 backscattering properties of the radar signal.
Satellite Data (1): TerraSAR-X
Imagery Dates: 25 April 2022 at 21:34 UTC
Resolution: 8.25 m
Copyright: © DLR e.V. (2022), Distribution Airbus DS Geo GmbH
Source: DLR
Satellite Data (2): TanDEM-X
Imagery Dates: 20 April 2022 at 21:26 UTC
Resolution: 8.25 m
Copyright: © DLR e.V. (2021), Distribution Airbus DS Geo GmbH
Source: DLR / TanDEM-X
Administrative boundaries: National Mapping and Resource
Information Authority (NAMRIA), Philippines Statistics
Authority (PSA)
Population data: WorldPop [2020]
Reference Water: JRC and ESA WorldCover project 2020
Cropland data:ESA WorldCover project 2020
Copyright:© ESA WorldCover project 2020 / Contains
modified Copernicus Sentinel data (2020) processed by ESA WorldCover consortium?
Populated place: OpenStreetMap
Road data: OpenStreetMap
Waterways: OpenStreetMap
Background: ALOS Global DSM, ESRI World Imagery
Analysis: United Nations Satellite Centre (UNOSAT)
Production: United Nations Satellite Centre (UNOSAT)