Fig. 4From: Detection of damaged urban areas using interferometric SAR coherence change with PALSAR-2 a Area with ∆γ HH ≥ 0.2 obtained in Sankhu. A red polygon represents the municipality border, Pukhulacchi. b Area with ∆γ (HH, HV) ≥ 0.2 and coherence filter. c Google Earth image. d Building damage survey result obtained in Sankhu. Red Grade 5. Orange Grade 4. Yellow Grade 2–3. White Grade 0–1Back to article page