Aerial areas
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Aerial areas |
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| The aerial photographs are currently being analyzed to determine the relative areas of ice, ponds, and leads. All photos have been digitized and stored in Kodak photoCD format on a series of 36 CD-ROMs. Image processing software (Optimas 6.0) is used to partition the photos into three components: ice, ponds, and leads. After this partitioning, relative areas can be computed as well as perimeter and size distribution of ponds, leads, and floes. | |
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Average values of relative areas of ice, ponds, and leads for four aerial photo flights. Over 100 photos were analyzed for each flight, for a total area of more than 100 km2. Note the sharp increase in lead fraction between late July and early August.
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Area fraction of ice, ponds, and leads measured from aerial photos. Each point is a photo covering more than 1 km2. |
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