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DSD-INT 2018 Monitoring Soft Soils With Satellite Radar Interferometry - Hanssen

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Presentation by Ramon Hanssen (SkyGeo) at the Data Science Symposium 2018, during Delft Software Days - Edition 2018. Thursday 15 November 2018, Delft.

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DSD-INT 2018 Monitoring Soft Soils With Satellite Radar Interferometry - Hanssen

  1. 1. 1 Monitoring soft soils with satellite radar interferometry Ramon Hanssen Floris Heuff Data Science Symposium, Delft, 14/11/18 r.f.hanssen@tudelft.nl
  2. 2. 2 Drainage and subsidence canal CO2, CH4, N2O peatpeat
  3. 3. 3 “Subsidence of pastures on peat soils not measurable”
  4. 4. 4Bijeenkomst Delfland 24 Januari 2018
  5. 5. 5Bijeenkomst Delfland 24 Januari 2018
  6. 6. 6
  7. 7. 7Challenge the future 7
  8. 8. 9Bijeenkomst Delfland 24 Januari 2018
  9. 9. 10Challenge the future
  10. 10. 11Challenge the future Time series
  11. 11. 12Challenge the future November 15, 2018 12
  12. 12. 13Challenge the future Surface deformation map of the Netherlands
  13. 13. 14Challenge the future November 15, 2018 14
  14. 14. 15
  15. 15. 16Challenge the future 16
  16. 16. 29 Persistent Scatters
  17. 17. 30Bijeenkomst Delfland 24 Januari 2018
  18. 18. 31
  19. 19. 32
  20. 20. 33 Approach • Combine all satellites – Envisat,TerraSAR-X, RadarSAT en ALOS II • Suppress noise (250 m pixels) • Estimate subsidence and seasonal effects • 138 acquisitions over 5 years
  21. 21. 34 2007-2012 (Morishita & Hanssen, 2015)
  22. 22. 35 2007-2012 (Morishita & Hanssen, 2015) AHN
  23. 23. 36 2007-2012 (Morishita & Hanssen, 2015)
  24. 24. 37 Daling (blauw) van maaiveld [mm/y] Conclusions 2007-2012 • Estimated subsidence • Spatial pattern OK • Temporal pattern OK • But velocity can be too high (Morishita & Hanssen, 2015)
  25. 25. 44 Animation first results (vertical) 28 July 2016 - 22 October 2017
  26. 26. 45 results
  27. 27. 46 results
  28. 28. 47
  29. 29. 48
  30. 30. 58 Dikes and soil moisture Ozer,Van Leijen, Jonkman, Hanssen, Nature Geoscience (in review), 2018
  31. 31. 59Ozer,Van Leijen, Jonkman, Hanssen, Nature Geoscience (in review), 2018
  32. 32. 60Ozer,Van Leijen, Jonkman, Hanssen, Nature Geoscience (in review), 2018
  33. 33. 61Ozer,Van Leijen, Jonkman, Hanssen, Nature Geoscience (in review), 2018
  34. 34. 62 Soil moisture and deformation: synergies •  Soil moisture changes cause volumetric changes, thus, deformation • Deformation can be used to infer soil moisture • Where do both fields meet?

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