Scientists have already shown that the amount of sea ice in the Arctic is falling, and the latest data confirms the long-term trend.
科学家已经知晓北极圈的冰量减少，而且最近的数据证实了这是一个长期过程。
This news comes after researchers reported a record low amount of sea ice up North.
该消息是在研究人员报告称北极海冰面积创下历史新低之后发布的。
The amount of ice cover and its thickness are two measures of the health of the Arctic Sea.
冰盖的数量和它的厚度是检测北冰洋是否健康的两个标准。
The Sea also has a large amount of ice, where walruses and polar bears can rest.
而且，这片海洋有大量的冰块可供海象和北极熊栖息。
As the Atlantic Ocean has warmed up, the amount of sea ice around Scandinavia and Siberia in winter has decreased.
随着大西洋海洋的升温，在冬季，围绕着斯堪的纳维亚和西伯利亚的海冰数量减少了。
The smallest amount of space on land, sea, ice, and air that scientists can study is about the size of Virginia.
科学家们在陆上、海上、冰层及大气中能够研究的最小的的范围，相当于弗吉尼亚州的大小。
Based on this relationship and taking other factors into consideration, the sea ice thickness and the amount sea ice at a certain time can be estimated.
以这一关系为基础，再结合其它相关因子，可以估算海冰厚度和某一时刻的海冰资源量。
It is the basis for estimation of the amount of sea ice resources to understand the changing characteristics of sea ice thickness with the effect by some factors, such as temperature.
认识海冰厚度在气温等因子影响下随时间变化的特征，是估算海冰资源量的基础。
The National Snow and ice Data Center said the amount of January sea ice is 644,000 square kilometers below average.
美国国家冰雪数据中心表示，一月份北极海冰面积比平均水平少64.4万平方公里。
The National Snow and ice Data Center said the amount of January sea ice is 644,000 square kilometers below average.
美国国家冰雪数据中心表示，一月份北极海冰面积比平均水平少64.4万平方公里。
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