Geodata and statistics / Humanitarian Data Exchange

FloodScan: Near Real-Time and Historical Flood Mapping

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 …

No file is held for this record yet. The catalogue entry and the link to where it was published are kept.

Source	Humanitarian Data Exchange
Collection	Geodata and statistics
Kind	Document
Publisher	JANUS Atmospheric and Environmental Research
Date	2026-09-29
Type	dataset
Details	hdx package search fq=groups:nga
Found at	https://data.humdata.org/dataset/floodscan
Archived copy	Look it up in the Wayback Machine
Record ID	`hdx-nigeria:b704f489-6705-499a-b5f0-22eeb1184b0b`

Cite this record

FloodScan: Near Real-Time and Historical Flood Mapping. Humanitarian Data Exchange, 2026. Vero Archive, record hdx-nigeria:b704f489-6705-499a-b5f0-22eeb1184b0b.