Differential SAR Interferometry Using Sentinel-1 Data for Kumamoto Earthquake
- 1. Center for Research and Application for Satellite Remote Sensing Yamaguchi University Differential SAR Interferometry Using Sentinel-1 Data for Kumamoto Earthquake
- 2. Sentinel-1 data • The Sentinel-1 mission comprises a constellation of two polar-orbiting satellites, operating day and night performing C-band synthetic aperture radar imaging, enabling them to acquire imagery regardless of the weather. • Sentinel-1A images in this material were downloaded in Interferometric Wide (IW) swath mode derived from the Copernicus Open Access Hub (https://scihub.copernicus.eu/). This mode is a main acquisition mode of Sentinel- 1A. It covers with 250 kilometers swath at 5 meters by 20 meters spatial resolution (single look). IW mode captures three sub-swaths using Terrain Observation with Progressive Scans SAR (TOPSAR). https://sentinel.esa.int/web/sentinel/missions/sentinel-1
- 3. SAR Data • Master: S1A_IW_SLC__1SSV_20160408T091355_20160408T091430_010728_01001F_83EB • Slave: S1A_IW_SLC__1SSV_20160420T091355_20160420T091423_010903_010569_F9CE Source: https://scihub.copernicus.eu/dhus/#/home
- 4. Open data • File → Import → SAR Sensors → SENTINEL-1 Preview images
- 5. • Radar → Coregistration → S1 TOPS Coregistration → S1 TOPS Coregistration
- 6. Read = master Read(2) = slave Write output in your directory Output S1A_IW_SLC__1SSV_20160408T091355_20 160408T091430_010728_01001F_83EB S1A_IW_SLC__1SSV_20160420T091355_20 160420T091423_010903_010569_F9CE
- 7. • Interferometric → products → Interferogram formation
- 10. Sentinel-1 TOPS → S-1 TOPS Deburst
- 11. Before deburst After deburst
- 12. Interferometric → products → Topographic phase removal
- 14. Interferometric → Filtering → Goldsten Phase Filtering
- 17. • Geo-coding → Terrain correction → Range-Doppler Terrain Correction