Glacial Lake Mapping with Very High Resolution Space-borne SAR

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Technologie

ESA DUE GLOF (ESRIN 22140/08/I-EC) Objectives and Scope of the Project ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object]

GLOF in the context of High Alpine Risks Lake Blockage - Dam - Moraine - Landslide - Topography Glacier - runoff - melt - change Timely Occurance Spatially Event - Glacier ice breakoff - Dam break - Landslide - Mass balance change Hazard Change

ESA DUE GLOF (ESRIN 22140/08/I-EC) Users

Product Description ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DEMs for terrain-corrected geocoding Use SRTM4 for terrain-corrected geocoding of satellite SAR images if any other high-quality DEM (e.g. ~30 m posting and  3 m vertical accuracy) derived from 1:25’000 topographic maps is not available

Glacier lake mapping with TerraSAR-X 07.05.2003 21.02.2005

Glacier lake mapping with TerraSAR-X 21.02.2005 03.03.2004

Imja Tsho lake ERS-1/2 SAR May 1992 ERS-1/2 SAR Apr. 1996 ERS-1/2 SAR Jul. 2001 TerraSAR-X Apr. 2009 TerraSAR-X Oct. 2009 Google Earth May 2003 ALOS PALSAR Nov. 2007 ALOS PALSAR May 2008 ALOS PALSAR Nov. 2009

Lower Barun lake ERS-1/2 SAR May 1992 ERS-1/2 SAR Apr. 1996 ERS-1/2 SAR Jul. 2001 TerraSAR-X Apr. 2009 TerraSAR-X Oct. 2009 Google Earth Mar. 2004 ALOS PALSAR Nov. 2007 ALOS PALSAR May 2008 ALOS PALSAR Nov. 2009

Lumding Tsho lake ERS-1/2 SAR May 1992 ERS-1/2 SAR Apr. 1996 ERS-1/2 SAR Jul. 2001 TerraSAR-X Apr. 2009 TerraSAR-X Oct. 2009 Google Earth Feb. 2005 ALOS PALSAR Nov. 2007 ALOS PALSAR May 2008 ALOS PALSAR Nov. 2009

Tsho Rolpa lake ERS-1/2 SAR May 1992 ERS-1/2 SAR Apr. 1996 ERS-1/2 SAR Jul. 2001 TerraSAR-X Apr. 2009 TerraSAR-X Oct. 2009 Google Earth Feb. 2005 ALOS PALSAR Nov. 2007 ALOS PALSAR May 2008 ALOS PALSAR Nov. 2009

Validation ,[object Object],[object Object],[object Object],[object Object]

Imja Tsho lake TerraSAR-X Apr. 2009 Field survey May 2009 TerraSAR-X Oct. 2009

FOCUS requirements (based on BOKU work TajHaz)

Conclusions: Glacier lake mapping with very high resolution SAR ,[object Object],[object Object],[object Object],[object Object]

Conclusions: Glacier lake mapping high resolution SAR ,[object Object],[object Object],[object Object],[object Object]

Future: Glacier lakes within high mountain risks ,[object Object],[object Object]

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Glacial Lake Mapping with Very High Resolution Space-borne SAR

1. Glacial Lake Mapping with very High Resolution Space-borne SAR Andreas Wiesmann 1 , Tazio Strozzi 1 , Andreas Kääb 2 1 GAMMA Remote Sensing AG, Switzerland 2 Dep. Geoscience University of Oslo, Norway

4. GLOF in the context of High Alpine Risks Lake Blockage - Dam - Moraine - Landslide - Topography Glacier - runoff - melt - change Timely Occurance Spatially Event - Glacier ice breakoff - Dam break - Landslide - Mass balance change Hazard Change

5. ESA DUE GLOF (ESRIN 22140/08/I-EC) Users

6. User Requirements

8. Potential hazardous glacier lakes in CH

9. Glacier lake mapping with TerraSAR-X

10. DEMs for terrain-corrected geocoding Use SRTM4 for terrain-corrected geocoding of satellite SAR images if any other high-quality DEM (e.g. ~30 m posting and  3 m vertical accuracy) derived from 1:25’000 topographic maps is not available

11. Area of interest in Nepal

12. Satellite SAR Data in Nepal

13. Glacier lake mapping with TerraSAR-X 07.05.2003 21.02.2005

14. Glacier lake mapping with TerraSAR-X 21.02.2005 03.03.2004

15. Imja Tsho lake ERS-1/2 SAR May 1992 ERS-1/2 SAR Apr. 1996 ERS-1/2 SAR Jul. 2001 TerraSAR-X Apr. 2009 TerraSAR-X Oct. 2009 Google Earth May 2003 ALOS PALSAR Nov. 2007 ALOS PALSAR May 2008 ALOS PALSAR Nov. 2009

16. Lower Barun lake ERS-1/2 SAR May 1992 ERS-1/2 SAR Apr. 1996 ERS-1/2 SAR Jul. 2001 TerraSAR-X Apr. 2009 TerraSAR-X Oct. 2009 Google Earth Mar. 2004 ALOS PALSAR Nov. 2007 ALOS PALSAR May 2008 ALOS PALSAR Nov. 2009

17. Lumding Tsho lake ERS-1/2 SAR May 1992 ERS-1/2 SAR Apr. 1996 ERS-1/2 SAR Jul. 2001 TerraSAR-X Apr. 2009 TerraSAR-X Oct. 2009 Google Earth Feb. 2005 ALOS PALSAR Nov. 2007 ALOS PALSAR May 2008 ALOS PALSAR Nov. 2009

18. Tsho Rolpa lake ERS-1/2 SAR May 1992 ERS-1/2 SAR Apr. 1996 ERS-1/2 SAR Jul. 2001 TerraSAR-X Apr. 2009 TerraSAR-X Oct. 2009 Google Earth Feb. 2005 ALOS PALSAR Nov. 2007 ALOS PALSAR May 2008 ALOS PALSAR Nov. 2009

19.

20. Imja Tsho lake TerraSAR-X Apr. 2009 Field survey May 2009 TerraSAR-X Oct. 2009

21. FOCUS requirements (based on BOKU work TajHaz)

22. Satellite SAR Data in Tajikistan

23. Glacier lake mapping in Tajikistan

24. Glacier lake mapping in Tajikistan

25.

26.

27.