The disaster mapping and monitoring (floods) service concerns the detection of the areas affected by floods. Flood events are mainly due to extreme weather phenomena, such as heavy rainfalls or storms (natural cause) and can be aggravated by anthropogenic factors (spillage of dam or lack of drainage). Floods are among the most common disasters and natural hazards in the world, affecting human lives and causing severe economic damage. The assessment of flooding extent can therefore provide local authorities with valuable information for post-flood response and mitigation .
Flood extent at medium resolution 375m - Suomi/NPP&NOAA-20
Daily composited maps with the extent of flooded areas (375m pixel size) at pan-African scale. The product is a federation from NOAA/JPSS/GMU/CIMSS (Suomi-NPP &NOAA-20/VIIRS). The pixel values are classified into various states (e.g., dry land, normal open water, floodwater, cloud presence, etc.), also expressing flood water fraction rate per flood pixel (where applicable).
Flood extent at high resolution 10m, Upper East (Ghana)
Maps of flood extent at 10m spatial resolution. The product is based on Sentinel-1 data and is produced for the flood prone time-period (Mid-August to Mid-October) downstream of the Bagre Dam in the upper east region of Ghana, based on input data availability. The flood-extent binary maps are generated by comparing the extent of the surface water extent for one date to the pre-flood extent. The maps are produced since 2018.
Flood extent at high resolution 10m, Niamey (Niger)
Map of flood extent at 10m spatial resolution. The product is based on Sentinel-1 data and is produced for the specific riverine flood event around Niamey in Niger in Sep. 2017 as reported by the Copernicus Management Service (Copernicus event EMSR235). The flood-extent binary map is generated by comparing the extent of the surface water extent on Sep. 7th 2017 to the pre-flood extent.