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Glacial Lake Mapping with Very High Resolution Space-borne SAR

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Global Risk Forum GRFDavos

Glacial Lake Mapping with Very High Resolution Space-borne SAR

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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
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
User Requirements
Product Description ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Potential hazardous glacier lakes in CH
Glacier lake mapping with TerraSAR-X
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
Area of interest in Nepal
Satellite SAR Data in Nepal
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)
Satellite SAR Data in Tajikistan
Glacier lake mapping in Tajikistan
Glacier lake mapping in Tajikistan
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
  • 2.
  • 3.
  • 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
  • 7.
  • 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.