SAR based Flood processing chain
Service using the SNAP Sentinel-1 IW SLC Amplitude Coherence Composites and a Flood Classifier developed and integrated in GEP by eGEOS to extract flooded areas from Sentinel-1 interferometric multi-temporal stack to support flood mapping.
EO sources supported:
- Sentinel-1 TOPSAR IW SLC
Output specifications
- water mask GeoTiff file
Then select from the list the “SAR-flood-trial-case” data package and click on load. The input data are standard interferometric Sentinel-1 SLC images, e.g. the images have the same relative orbit number. In order to select suitable images for the service you can use the following string in the search box (top left of the web page):
track:81 && pt:slc
The selected data package contains the reference to the following input file:
S1A_IW_SLC__1SDV_20150328T061348_20150328T061415_005228_0069A4_2B88
S1A_IW_SLC__1SDV_20151205T061403_20151205T061430_008903_00CBC9_FD2D
S1A_IW_SLC__1SDV_20151217T061404_20151217T061434_009078_00D09B_065C
Define values for the “Job title”, the “SAR images” and the “Sub-swath” fields.
SAR flood extraction
IW-3
The output of the service (flood mask) is a GeoTiff file, represented in byte format, with “1” value where the flood is present, “0” otherwise.