EAS212 Lecture 24: notes_lecture24

• School: University of Alberta
• Department: Earth and Atmospheric Sciences
• Course: EAS212
• Professor: Juliana Marson

Document Summary

Arctic ocean geography: broad continental shelves comprise 70% of arctic"s surface area, the arctic ocean is divided into the canadian basin and the eurasian. Basin: these basins are separated by the lomonosov ridge, communicates with atlantic through canadian archipelago and. Nordic seas: communicates with pacific through bering strait. Wind forcing: high pressure in the vicinity of the north pole arctic under the influence of the polar easterlies force anticyclonic surface circulation (in contrast to the southern ocean where the effect of the. Polar easterlies is only noticeable in a weak westward current along the antarctic continent: in summer, the slp contrasts are much smaller, the winds much weaker, and the atmospheric low is centered over the north pole. Bg) around centre of the atmospheric high: anticyclonic circulation of bg is a superficial feature. The inflowing water therefore does not sink but spreads through an intermediate layer: outflow of water from the arctic seas is not restricted to the surface layer.