True SLC InSAR — Millimetre Deformation Mapping
The full SNAP + SNAPHU interferometry chain, validated against real GPS ground truth
Expert
Remote Sensing
4 lessons
Samuel Appiah Kubi
About this course
Where the SAR flood course uses amplitude to detect standing water at a metre scale, this expert-level course goes further: using the radar's phase information to measure ground deformation at millimetre precision. You'll run the complete 11-step SNAP TOPSAR processing chain, understand exactly what SNAPHU's phase unwrapping is doing, and validate the whole pipeline against real GPS measurements rather than trusting it on faith.
What you'll learn
- Understand the physics of SAR interferometry and line-of-sight displacement
- Explain precisely why GRD amplitude and SLC phase answer different questions at different scales
- Run the 11-step SNAP TOPSAR InSAR graph
- Perform SNAPHU phase unwrapping in DEFO mode and know what that mode is optimised for
- Convert unwrapped phase to LOS displacement and validate it against GPS ground truth
Requirements
- SAR Processing for Flood Mapping (required)
- ESA SNAP 9.0 installed
- pip install snapista | conda install -c conda-forge snaphu
Course content
Why These Are Genuinely Different Tools, Not Just Different Settings
Preview
22 min
Accessing Sentinel-1 SLC Data
18 min
The 11-Step TOPSAR Graph, Stage by Stage
36 min
Phase to Displacement: the Formula and Its Validation
32 min
Free
- LevelExpert
- Lessons4
- CertificateYes
- AccessLifetime
Samuel Appiah Kubi
Instructor