This The following is a description of the latest operational release of GloFAS v3.2. For an overview of other GloFAS releases, please see: GloFAS versioning system
Summary
GloFAS version 3.2 was implemented as a minor change to provide access to the Global Flood Monitoring (GFM) beta version through its web interface (www.globalfloods.eu).
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- Introduction of new data access functionalities, including:
- Function to define Area of Interest.
- Visualization of the available products for user-defined AOIs.
- GFM products download option for user-defined AOIs (per layer or for all product layers).
- Notifications configuration via the app and/or Twitter.
Key specifications of the products
Input satellite data
Satellite sensor | S-1 - Synthetic Aperture Radar (SAR) |
|---|---|
Acquisition mode | Interferometric Wide Swath (IW) |
Data product | Level-1 - Ground Range Detected (GRD) |
Spatial sampling | 20 x 22 m |
Global revisit frequency | Europe: ~1-3 days. Rest of the world: ~3-14 days, depending on location |
SAR polarization scheme | VV + VH |
General product specifics
| Pre-release date on GloFAS-IS | 2021-10-21 |
|---|---|
| Release date on GloFAS-IS | 2021-10-27 |
Geographic coverage | Global |
Pixel size | 20 m |
Timeliness | <8 hours after S-1 image acquisition. |
Thematic accuracy | Target threshold of >70-80%, based on the Critical Success Index |
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