PRODUCTS

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Note: this section provides a concise description of the products provided by the GFMS.
For a more comprehensive documentation the reader is referred to the GFMS Products Description Document.

The GFMS makes available a full set of NRT flood mapping-related products as listed below:

1. S-1 Observed Flood Extent
2. S-1 Observed Water Extent
3. S-1 Reference Water Mask
4. Exclusion Mask
5. Uncertainty Values
6. Advisory Flags
7. Sentinel-1 Metadata
8. Sentinel-1 Footprint
9. Sentinel-1 Schedule
10. Affected Population
11. Affected Land Cover

It is worth mentioning that, output layers 1 (observed flood event), 2 (observed water extent), and 3 (reference water mask) are provided in both raster (Geotiff) and vector(shapefile) format.
Output layers 4 (exclusion mask), 5 (uncertainty values), 6 (advisory flags), and 10 (affected population) and the additional proposed 11 (affected landcover) are provided in rasterformat (Geotiff), output layer 8 (Sentinel-1 footprint) in vector format and output layer 9 (Sentinel- 1 schedule) as a KML files.

Products
1. S-1 Observed Flood Extent	Flooded areas mapped as the difference between S-1 observed water extent and the reference water mask.
2. S-1 Observed Water Extent	Open and calm water mapped using S-1 SAR backscatter intensity.
3. S-1 Reference Water Mask	Normal (i.e. permanent, seasonal) water mapped using S-1 SAR backscatter intensity.
4. Exclusion Mask	Unclassified areas
5. Uncertainty Values	Estimated uncertainty of flood mapping, for all areas outside exclusion mask
6. Advisory Flags	Flags indicating potential reduced quality of flood mapping, due to prevailing environmental conditions (e.g. wind, ice, snow, dry soil), or degraded input data quality due to signal interference from other SAR missions (e.g. Radarsat)
7. Sentinel-1 Metadata	Information on the acquisition parameters of the S-1 data used
8. Sentinel-1 Footprint	Image boundaries of the S-1 data used
9. Sentinel-1 Schedule	Next scheduled S-1 data acquisition
10. Affected Population	Number of people in flooded areas, mapped by a spatial overlay of observed flood extent and gridded population
11. Affected Land Cover	Land cover type flooded