1. Lyons and Sandwell, JGR, 2003 Landers EQ Hector Mine EQ

2. http://topex.ucsd.edu/gmtsar

4. forming interferogram

7. phase due to curved earth phase due to topography Perpendicular baseline MATTERS!

8. total phase

9. Phase from curved Earth

10. total phase

11. Critical Baseline

12. Phase from topography

13. phase minus spherical earth

14. How high is Toro Peak?

15. deformation and topography

18. Triggered slip on Southern San Andreas Fault

19. Need for Precise Orbits 1. proper focus 2. transform from geographic radar coordinates 3. image alignment 4. flattening interferogram Brute force algorithm given precise orbit subroutine pick target point fly satellite along orbit and identify point of closest approach (This is inefficient but computers are fast so don’t waste time coding.)

21. GMTSAR 2-pass processing no ground control seamless abutment of frames along track stacking for time series one master and many slaves primary, secondary, tertiary, image alignment ScanSAR Interferometry possible but not easy code needs refinement