Ground deformation of the 2020 Elazig earthquake, 2023 Kahramanmaraş earthquake sequence and long-term deformations time series and rates, computed from Sentinel-1 and RADARSAT-2 Synthetic Aperture Radar data.

Published: 20 March 2023| Version 1 | DOI: 10.17632/p7vxjnmfzy.1


Deformation products computed from Sentinel-1 and RADARSAT-2 Synthetic Aperture Radar data. I. Speckle range and azimuth offsets of the 6 February 2023 Kahramanmaraş, Türkiye earthquake sequence. - Sentinel-1_track014 - Sentinel-1_track021 - Sentinel-1_track123 - RADARSAT-2 - 2023_Kahramanmaras_Earthquakes_summary.pdf II. The 2017-2023 long-term line-of-sight deformation rates from Sentinel-1 data, computed with MSBAS-1D software. - Sentinel-1_MSBAS1D_track043_deformation_rate_only_20170606-20230130 - Sentinel-1_MSBAS1D_track123_deformation_rate_only_20170531-20230205 - Sentinel-1_MSBAS1D_track116_deformation_rate_only_20160604-20230204 III. The 2017-2023 long-term two-dimensional deformation time series and rates from Sentinel-1 data, computed with MSBAS-2D software. - Sentinel-1_MSBAS2D_track043_track123_time_series_20170606-20230130 - 2017-2023_MSBAS2D_summary.pdf - note: -- several landslides -- co- and post-seismic fault motion -- fast subsidence The data consists of the following files: *.spo_range.geo.tif - raw range offsets measured in meters *.spo_snr.geo.tif - signal-to-noise ratio that can be used to remove noisy pixels *.spo_range.geo_SNR5_FILTER_MEDIAN3km.tif - post-processed range offsets measured in meters - The following post-processing filters provided in readme.txt files are applied: - pixels with SNR<5 (or 10) are removed - pixels with abs(range)>5 are removed - median filter with a 3km window is applied - different filtering parameters can be applied, if needed. Files produced with GAMMA look_vector command (measured in radians): *.lv_theta.geo.tif - SAR look vector elevation angle at each map pixel - lv_theta: PI/2 -> up -PI/2 -> down - The elevation angle is measured between the surface and the look vector pointing at the radar *.lv_phi.geo.tif - SAR look vector orientation angle at each map pixel - lv_phi: 0 -> East PI/2 -> North *qc - various information about processing options and baselines. For extracting 2D time series for individual pixels use msbas_extract command and MSBAS_TSOUT.txt file with timing information.



Natural Resources Canada


Synthetic Aperture Radar, Interferometry, Time Series, Deformation Analysis, Earthquake Hazard, Turkey, Syria, Earthquake, Speckle Interferometry