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.

Glacial Lake Mapping with Very High Resolution Space-borne SAR

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