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As part of a project on Montreal's urban climate, surface thermal data (8-12 µm) were collected by aircraft with the CSO Daedalus scanner on two different dates. These aircraft missions were conducted at sunrise and solar noon for: (1) surface conditions with snow cover, March 16, 1976, and (2) a time of maximum vegetation cover, June 26, 1976. Ground truth-data were obtained during the time of each flight and were also calibrated with the aircraft sensors to remove atmospheric effects. Surface thermal emissions were converted to radiant temperatures and these were used to obtain emissivity maps, which were compared with …
