Remote Imaging of Marine Mammals

For the imaging of harp seals (Phoca groenlandica), the camera was mounted on a Canadian Coast Guard helicopter, the camera was flown at an altitude of 200 m. The camera was mounted temporarily in a Department of Fisheries and Oceans supplied camera pod.

Camera pod mounted on the left landing strut of the helicopter.

This image of harp seals (Phoca groenlandica) near the Magdalen Islands, Canada, was captured using Borstad Associates Panchromatic Line Scan camera. The camera was flown at an altitude of 200 m, acquiring an image swath 260 m wide and 3.4 km long (far left). The main image is a magnification of the area in the red box.

The images above of adult and juvenile grey seals (Halichoerus grypus) were taken near Amet Island, Nova Scotia. At 4 cm resolution body features are readily visible.

With the use of optical filters and false colour enhancement, seals hidden in shadow can be detected in the imagery.

Other features which can be recognized from the imagery include seal tracks and depressions left in the snow from resting seals.

   
Last update 12 March 2007
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