Flood Inundation Mapping (HydroSAR)
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The system generates information on surface water extent for South Asia to support the monitoring and forecasting of flood inundation in the region. This has been made possible through our collaboration with the NASA SERVIR Applied Sciences Team (AST) member – Franz J Meyer, at the University of Alaska Fairbanks. HydroSAR uses weather-independent data from spaceborne radar remote sensing sensors to map surface water extent every time the satellite collects imagery over an area of interest.
Using a fully cloud-based implementation, HydroSAR is able to create flood-relevant data products quickly even across large spatial scales, delivering information within hours of satellite data acquisition. To facilitate access to global radar remote sensing archives, the HydroSAR team is working to implement the SAR data processing workflows in the Alaska Satellite Facility (ASF)’s cloud environment. ASF, NASA’s main data centre for radar remote sensing data, currently provides access to more than 13 petabytes of Synthetic Aperture Radar (SAR) data acquired by air- and space borne radar sensors over a time span of more than 40 years.
