Ayonskiy Ocean Ice Massif
Ayonskiy ocean ice massif – a sustainable accumulation of heavy consolidated pack ice in the East Siberian Sea not far from Wrangel Island which is well-known among polar explorers. It occupies a big part of the East Siberian Sea. Its southern periphery almost borders upon the mainland coast throughout the year. The massif is an offspur of an ocean massif which supplies it with heavy paleocrystic ice. These clusters are called ice massifs. They present a significant marker of ice conditions in Arctic seas being the main serious obstacle for any professional activities on the Arctic seas shelf, including that of navigation along the Northern Sea Route.
The ice of ice massifs can be described as thicker and more rigid. In the Arctic seas of the Siberian Shelf, specialists single out nine ice massifs named according to their geographical location. The position, size, and form of the ice massif depend mostly on the total impact of wind and undercurrents on the drift ice, which accounts for their significant fluctuation from year to year.