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The geodetic monitoring of the Corinth rift observatory with GPS and SAR interferometry

The geodetic monitoring of the Corinth rift observatory with GPS and SAR interferometry. P. Briole, CNRS/ENS, 20 September 2019. Forthcoming courses. Tomorrow afternoon. Sunday afternoon. Monday afternoon. The jungle of the acronyms. Just in the previous slide. GPS GNSS ESA InSAR GEP

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The geodetic monitoring of the Corinth rift observatory with GPS and SAR interferometry

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  1. The geodetic monitoring of the Corinth rift observatory with GPS and SAR interferometry P. Briole, CNRS/ENS, 20 September 2019

  2. Forthcoming courses Tomorrow afternoon Sunday afternoon Monday afternoon

  3. The jungle of the acronyms Just in the previous slide • GPS • GNSS • ESA • InSAR • GEP • GIPSY OMG! So, BC and do not let yourself be impressed too much by those acronyms

  4. We are going to talk about satellites, electromagnetic waves, propagation of electromagnetic waves, orbits of the satellites, antennas Sentinel1 satellite Galileo satellite

  5. Where are the satellites and why ? Galileo Sentinel1

  6. The electromagnetic spectrum UV Radar L-band Radar C-band Visible Radar X-band Infra-red

  7. The propagation of the electromagnetic waves

  8. GNSS antenna

  9. Geodetic benchmark

  10. The whole set of equipment of the GNSS geodesist at CRL(for measuring campaign points)

  11. Field GNSS measurements

  12. Continuous GNSS measurements Permanent GNSS receiver at the University of Patras

  13. Real time GNSS at the university of Patras

  14. Permanent GNSS array of CRL

  15. Lear more at http://crlab.eu

  16. Get data and products

  17. Time series of coordinates

  18. Velocities of the GNSS points

  19. Values of the coordinates for a given day

  20. Daily quality control

  21. Campaign GPS

  22. Localisation of the deformation

  23. Imagery from Sentinel1 – unlike GNSS here there are no benchmarks

  24. Correlation of images Principle: match the amplitude of the signal and calculate the difference of the phases InSAR requires two epochs of observations – it is a differential technique

  25. Correlation of SAR images - = Orbit 1 Orbit 2 Difference of signal travel time

  26. Aigion, Ms=6.2, 15 June 1995 Co-seismic deformations mesured by GPS and SAR interferometry & Model Bernard et al., 1997

  27. Routine interferogram production (NOA processor)

  28. Routine interferograms production (CNRS processor)

  29. Corrected and filtered interferogram (CNRS processor)

  30. Get interferograms from the CRL portal

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