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Summary of Proposal LAN0440

TitleNorthern SAR applications at the Canada Centre for Remote Sensing
Investigator Brisco, Brian - CCRS, EOGD
Team Member
Physical Scientist Landry, Robert - CCRS, EOGD
Physical Scientist Budkewitsch, Paul - CCRS, EOGD
Physcial Short, Naomi - CCRS, EOGD
Physical Scientist Murnaghan, Kevin - CCRS, EOGD
Physical Scientist Burgess, David - CCRS, EOGD
van der Sanden, Joost - CCRS, EOGD
Kaya, Shannon - CCRS, EOGD
Charbonneau, Francois - CCRS, EOGD
SummaryNatural Resources Canada, and it remote sensing division, the Canada Centre for Remote Sensing, has an interest in monitoring terrain stability in Canada’s North and developing remote sensing methods to do this more efficiently. Radar methods have been proven to be successful in this area, particularly InSAR, and we seek to expand our current SAR capabilities to capitalize on the new sensors being launched today. Our areas of interest are: Permafrost – terrain stability in face of climate change, social and ecological impacts Hydrology – changing distribution of surface water with permafrost change, ecological and social impacts Glaciology – glacier dynamics and impacts on water resources with changing climate Permafrost - We are interested in using TerraSAR-X data to investigate interferometric performance over permafrost sites in the sub-arctic (Northern Yukon Territory) and high Arctic (Ellesmere Island). Initially to investigate coherence maintenance of X-band SAR with 11 day revisit period at different times of year over different vegetation and surficial geological conditions; if the investigations are successful, we would then look for specific evidence of terrain deformation and possibly attempt to derive DEMs for the areas of interest. Hydrology - This uses simple lake boundary extraction from SAR imagery to investigate changing surface water distribution. The increased resolution and relatively short revisit time of TerraSAR-X may be advantageous to our application, but the performance of X-band for automated water extraction needs to be established. For this application we have the same test sites in the North as for the permafrost work, and some additional sites in more southerly Alberta and Saskatchewan. Glaciology – CCRS has an established history of using C-band InSAR for monitoring Canada’s high Arctic glaciers. With the new sensors being launched we seek to investigate the possibilities of performing glaciological InSAR analysis at different time periods, at more southerly locations and over smaller glaciers. We are interested in TerraSAR-X data for more frequent monitoring due to the shorter revisit period and for experiments monitoring slower glaciers, possible with the higher resolution.

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