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