HYDRAFLOODS

Disaster Risk Response Stage
Response
Risk
Category Flood Extent Mapping
Input Network
CEOS
GEO
Input Network Member
NASA
Provider Organization: NASA-USAID-SERVIR
Point of Contact: Ashutosh Limaye
E-mail:
Source
Geographic Domain Local
Regional
Geographic Product Locations Asia/Oceania
Geographic Product Locations - Detailed
Cambodia
China
Laos
Myanmar
Thailand
Vietnam
Producing Daily Global Coverage? False
Globally Extensible True
Product Delivery Latency depends on size of AOI (200K sq km is typically 4 hours)
Data Type Optical, Radar
Associated Capacity Development Resources None
Product Format Cloud Optimized GeoTIFF
Archived True
Tailored Service Available True
License Type None
Spatial Extent tested up to 500,000 sq km at 10m resolution
Spatial Scale up to 10m
Caveats only test in SE Asia, known overestimation issues in arid regions
Frequency Daily
Overpass Latency N/A
Downlink Latency N/A
Processing Latency depends on size of processing AOI (200K sq km is typically 4 hours)
Impacted By Cloud Shadows True
Impacted By Terrain Shadows True
Status In Development
Input By John Murray, NASA Applied Sciences
Notes uses data driven spatio-temporal modeling approach based on image acquisitions to approximate surface water. Process does take one-time setup time typically a 2-3 days. Algorithm code is open source https://github.com/Servir-Mekong/hydra-floods, processing platform is proprietary (Google)