英语翻译It occupies a roughly circular basin and covers an area of about 14090000km.Nearly landlocked,the ocean is surrounded by the land messes of Europe,Asia.North American ,and Greenland and a number of islands,as well as by the Barents,Beaufo

英语翻译It occupies a roughly circular basin and covers an area of about 14090000km.Nearly landlocked,the ocean is surrounded by the land messes of Europe,Asia.North American ,and Greenland and a number of islands,as well as by the Barents,Beaufo
英语翻译
It occupies a roughly circular basin and covers an area of about 14090000km.Nearly landlocked,the ocean is surrounded by the land messes of Europe,Asia.North American ,and Greenland and a number of islands,as well as by the Barents,Beaufort,Chukchi,Kara,Laptev,East Seberian,Lincoln,Wandel,Greenland,and Norwegian seas.It is connected to the Pacific Ocean by the Bering Strait and to the Atlantic Ocean through the Greenland Sea.An underwater ocean ridge,the lomonosov ridge,divides the Arctic Ocean into two basin:the Eurasia,or Nansen,Basin,which is between4000and4500m deep,and the North American,or Hyperborean,Basin,which is about 4000mdeep.The topography of the ocean bottom is marked by fault-block ridges,plains of the abyssal zone,ocean deeps,and basins.The average depth of the Arctic Ocean is 1038m,in part due to the large extent of continental shelf extant on the Eurasian side.
The greatest inflow of water comes from the Atlantic by way of the Norwegian Current,which then flows along the Eurasian coast.Water also enters from the pacific via the Bering Strait .The East Greenland Current carries the major outflow .Temperature and salinity vary seasonally as the ice cover melts and freezes .Ice covers most of the ocean surface year-round.causing subfreezing temperatures much of the time.The Arctic is major source of very cold air that inevitably moves toward the equator,meeting with warmer air in the middle latitudes and causing rain and snow.Little marine life exists where the ocean surface is covered with ice throughout the year.Marine life abounds in open areas,especially the more southerly water.The ocean’s major ports are the Russian cities of Murmansk and Arkhangelsk (Archangel).The Arctic Ocean is important as shortest air route between the Pacific coast of North America and Europe overflies it.

英语翻译It occupies a roughly circular basin and covers an area of about 14090000km.Nearly landlocked,the ocean is surrounded by the land messes of Europe,Asia.North American ,and Greenland and a number of islands,as well as by the Barents,Beaufo
它（北冰洋）占据了大体圆形的盘地,占地面积约1409万平方公里,几乎被陆地所包围,该大洋被大量的欧洲、亚洲、北美洲陆地和格陵兰岛以及众多的岛屿所围绕,还被巴伦支海、波弗特海、楚壳其海、客拉海拉普帖夫海、东西伯利亚海、林肯海、万德尔海、格陵兰海和挪威海所环绕.它经由白令海峡连接太平洋,通过格陵兰海连接大西洋.一条水下海岭——罗蒙诺索夫海岭,将北冰洋分为2个盘地：一个叫欧亚或叫南森盘地,深度在4000-4500m之间；一个叫北美盘地或叫Hyperborean盘地,深度大约4000m.洋底的地形特点是众多的断层岩海岭、深渊地带的平原、海深和盘地.北冰洋的平均深度为1038m,部分是由于大范围的大陆架存在在欧亚大陆这边.
北冰洋最大的海水流入量来自大西洋,通过挪威海洋流流入,然后流经欧亚大陆海岸.海水还通过太平洋的白令海峡流入.东格陵兰海洋流带走主要的海水流出量.温度和盐度随着冰覆盖量的融化和冻结季节性变化.冰终年覆盖着大部分的洋面,导致很多时候处于低于冰点温度.北冰洋是冷空气的主要来源,它不可避免地向赤道方向移动,与较暖的空气在中纬度地区相遇,促成下雨和降雪.少量海洋生命常年生活在被冰覆盖的海洋表面下,但在开放水域富于海洋生物,特别是更偏南的水域.北冰洋的主要港口是俄罗斯城市Murmansk 和 Arkhangelsk.北冰洋作为能飞越在北美的太平洋海岸和欧洲的最短航线,地位重要.