Ground deformation products for the 7 January 2025 Mw 7.1 Tibet earthquake computed from Sentinel-1 Synthetic Aperture Radar data.

Ground deformation products for the 7 January 2025 Mw 7.1 Tibet earthquake computed from Sentinel-1 Synthetic Aperture Radar data.

InSAR and Speckle Range Offsets data
• Sentinel-1_track012
• Sentinel-1_track048
• Sentinel-1_track121

*disp.geo.tif – Line-of-Sight Displacement (measured in meters)
*wrp.geo.tif – Wrapped phase (measured in radians)
*cc.geo.tif – Coherence
*.spo_range.geo.tif - Raw Range Offsets (measured in meters)
*.spo_snr.geo.tif - Signal-to-Noise Ratio (can be used to remove noisy pixels)
*.spo_range.geo_cleaned.tif - Post-Processed Range Offsets (measured in meters)
Post-processing filters applied:
• Pixels with SNR<8 are removed
• Pixels with abs(range)>2 are removed
Different filtering parameters can be applied if needed.

Azimuth Offsets do not show measurable deformation and are not provided.

Files Produced with GAMMA look_vector command (measured in radians):
*.lv_theta.geo.tif - SAR look vector elevation angle measured between the surface and the look vector pointing at the radar at each map pixel (lv_theta: PI/2 -> up; -PI/2 -> down)
*.lv_phi.geo.tif - SAR look vector orientation angle at each map pixel: (lv_phi: 0 -> East; PI/2 -> North)

*.qc – text file with various information about processing options and baselines.

Please consult the metadata of the GeoTiff files for details regarding the limitation of liability.