ALOS-2 ScanSAR Damage Proxy Map

Three PALSAR-2 ScanSAR images were used for disaster response:

Pre-seismic: 2025.01.16 & 2025.02.19
Co-seismic: 2025.03.30

Orbit and angle: Descending, 39.02 degree

Coherence estimation was performed for pre-seismic and co-seismic pairs at 20 m pixel spacing.
Using Jenks classification, the results were categorized as follows:

Blue pixels: Likely “no change” (stable areas)

Yellow and orange pixels: Likely “Moderate changes”

Red pixels: Likely “High changes”

Link.Kmz