HYDRAFLOODS
Description
The Hydrological Remote Sensing Analysis of Floods leverages the most recently available remotely sensed data acquired by multiple satellite platforms to automate the creation of daily flood maps
Disaster Risk Response Stage
Preparedness
Response
Response
Category
Flood Extent Mapping
Temporal Use
Current observation
Retrospective analysis
Input Network
CEOS
GEO
GEO
Input Network Member
NASA
Provider Organization
NASA-USAID-SERVIR
Point of Contact
Ashutosh Limaye
E-mail
Geographic Domain
Local
Regional
Regional
Geographic Product Locations
Asia/Oceania
Geographic Product Locations - Detailed
Producing Daily Global Coverage?
No
Globally Extensible
Yes
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
Yes
Tailored Service Available
Yes
License Type
Unknown
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
Yes
Impacted By Terrain Shadows
Yes
Status
Operational
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)
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