هستی شناسی های علمی و فنی: علوم زمین: یخ ساحلی ثابت

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یخ ساحلی ثابت

Fast ice is central to the livelihoods of Arctic coastal communities who use it to access fishing and hunting grounds. Vertical fluctuations may be observed during changes of sea level. Fast ice may be formed on site from sea water or by freezing of pack ice of any age to the shore, and it may extend a few yards (meters) or several hundred miles (kilometers) from the coast. Fast ice may be more than one year old and may then be prefixed with appropriate age category (old, second- year, or multiyear). If it is thicker than about 7 ft (2 m) above sea level, it is called an ice shelf.

http://www.irandoc.acir/onto/irandoc/SWEETT01490

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