polynya मीनिंग इन हिंदी

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Polynya is an area of open water surrounded by sea ice.
There is also a large, permanent polynya near Sireniki.
Though polynyas form in the area, the island is commonly ice locked.
This polynya lasted for several weeks before disappearing on August 16, 1980.
It is most widespread throughout the polynyas and pack ice of the Bering Sea.
The southern winter winds shift this ice northwards, making polynyas near the sea centre.
The surface wind creates the polynyas which opens up the water surface to more wind.
The first ice that forms in a polynya are loose ice crystals called frazil ice.
Freed from the ice cover, wildlife can prosper in these " polynyas ."
The expedition investigated the ice, biology, oceanography, and biogeochemistry of the Amundsen Sea Polynya.

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