CN-Floods: Multi-Source Satellite Flood Maps for China (2006–2024)

171 flood event inundation maps for China from 2006 to 2024, created by Jun Xiao. The dataset integrates flood records from official bulletins and observatories with Landsat and Sentinel satellite imagery, processed using NDWI/MNDWI and SAR backscatter methods. Validation shows F1 scores ranging from 0.826 to 0.935, with 89.4% agreement between optical and SAR flood products.

Use Cases

• Flood monitoring and disaster assessment based on event-level flood inundation maps.
• Hydrological analysis based on long-term, multi-source satellite observations of flood extents.
• Deep learning research for flood detection based on labeled optical and SAR satellite imagery.
• Validation of flood models based on a dataset with reported accuracy metrics (F1 scores).

Strengths

• Contains 171 flood events, providing a substantial event-level catalog.
• Integrates multiple authoritative data sources: China Flood and Drought Disaster Bulletin, EM-DAT, and Dartmouth Flood Observatory.
• Uses multi-source remote sensing imagery including Landsat 5/7/8/9, Sentinel-1 SAR, and Sentinel-2 optical data.
• Reports validation metrics including F1 scores from 0.826 to 0.935 and 89.4% agreement between product types.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific analytical tasks.

Provenance

Source

Jun Xiao

Collection Method

Flood records integrated from official bulletins and observatories, with inundation areas extracted from satellite imagery using NDWI/MNDWI and SAR backscatter methods.

Time Range

2006 to 2024

Freshness

Last updated 2026-05-24 13:33:45; freshness should be verified.

Geography

China