Datasets > Somalia > 2025-present

FloodScan: Near Real-Time and Historical Flood Mapping

The Centre for Humanitarian Data · 2025 Full Details

Full Details

Title
FloodScan: Near Real-Time and Historical Flood Mapping
Description
FloodScan uses satellite data to map and monitor floods daily, helping compare current flood conditions with historical averages. This dataset contains two resources: The first (hdx_floodscan_zonal_stats.xlsx) is a daily tabular dataset providing average FloodScan Standard Flood Extent Depiction (SFED) flood fraction (0-100%) per admin 1 and 2 level. Historical baseline values (SFED_BASELINE) are calculated per day-of-year from the last 10 years of historical data (non-inclusive of current year) after applying an 11 day smoothing mean window. Return Period (RP) is calculated empirically based on all historical data up to the current year (non-inclusive). The second resource (aer_floodscan_300s_SFED_90d.zip) is a zipped file containing AER FloodScan estimated daily flood fraction (0-100%) gridded data at approximately 10 km resolution (300 arcseconds equivalent to approximately 0.083 degrees) for the last 90 days. Each file represents the estimates for a single day and includes 2 bands: SFED and SFED_BASELINE. The baseline band provides users an easy way to compare current values with historical averages. The baseline is calculated per day-of-year from the last 10 years of historical data (non-inclusive of current year) after applying an 11 day temporal smoothing mean window.
Creator
AER FloodScan: Atmospheric and Environmental Research (AER).
Publisher
The Centre for Humanitarian Data
Temporal Coverage
2025-05-23 to 2025-08-21
Date Issued
2025-01-31
License
http://creativecommons.org/licenses/by/3.0/igo/legalcode
Access Rights
Public
Date Added
March 27, 2025

Location

Links

Cite and Reference

  • Citation
    AER FloodScan: Atmospheric and Environmental Research (AER). (2025). FloodScan: Near Real-Time and Historical Flood Mapping. The Centre for Humanitarian Data. https://data.humdata.org/dataset/b704f489-6705-499a-b5f0-22eeb1184b0b (dataset)
  • BTAA Geoportal Link

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