Science at its most extreme.
探索科学的极限
Out on the frozen Arctic Ocean,
在冰封的北冰洋上
researchers are braving punishing cold to measure the ice below them.
研究人员正在冒着严寒测量冰层厚度
In recent years, it’s become thinner.
近些年来 冰层厚度已逐渐变薄
The expedition was launched in the eerie dark of the polar winter in January.
探险队于一月份北极正处于冬季极夜时到达
A research vessel-The Lancer stationed in the ice pack
考察船Lance停泊在冰层上
acting as a mother ship for the scientists.
科学家将它作为母船
With conditions like these,
如果遇上像这样恶劣的天气
very little research’s been done at this time of year.
每年的这个时候就进行不了什么研究
Our time lapse camera captures how the ice is in constant motion,
延时摄影机记录下了冰层持续运动的过程
ripped apart right beside the ship in less than two hours.
就在母船旁边 不到两小时 冰层就被裂开了
All this research takes place under the armed guards.
这些研究通常需要在武装守卫的保护下进行
There’s a threat from polar bears.
因为时时刻刻有来自北极熊的威胁
One approached the ship while we were on board and wandered close to a survey line.
有一只北极熊趁我们都在船上时靠近船只并且不断接近观测线
No one can be sure how rapidly the ice will retreat.
没有人能确定冰层退去的速度有多快
The researchers are finding signs of a region being transformed.
研究人员正寻找发生变化的区域的迹象
David Shruckman, BBC News, in the Arctic.
BBC新闻记者David Shruckman北极报道