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Investigation of Compact SAR L and C band Complementarity for Permafrost Characterization In Arctic Regions

Recent climate warming has been pronounced in the arctic and sub-arctic region with the average annual temperature increasing between 2 − 3° since the 1950 [1] . Accelerated temperature increases have driven declines in sea ice extent, snow cover duration, glacier mass, and increase in permafrost temperatures [1] . Increasing evidence from the permafrost zone suggests the abrupt permafrost thaw may be the norm for many parts of the Artic and sub-arctic landscape 1950 [1] , [2] . Climate warming is causing the initiation and expansion of abrupt permafrost thaw (called thermokarst), which even though it occurs at point locations, often cause much deeper permafrost thaw to occur more rapidly. Repeated mapping and/or monitoring of ongoing permafrost indicator changes in infrastructure corridor and surrounding lands is important for the assessment of transportation and energy infrastructure safety, and predicting eminent collapse.