The IIP monitors icebergs by the number that drift south below the 48°N line called the I48N, which runs from Newfoundland to 40°W.
国际巡冰队的监控区域包括被称为148N的北纬48度以南也就是从纽芬兰岛到西经40度的海域漂浮的冰山数量。
This includes any iceberg greater than 16 feet (5m) in above-surface length.
任何高于海平面16英尺(约5米)以上的冰山都在监控之内。
In 1912 1,038 icebergs are thought to have crossed the line - a large number, but not the most on record.
1912年超过这个高度的冰山数量有1038个,这已经高出常年值很多,但并不是史上最多的。
In 2009, for example, over 1,200 icebergs were seen to cross the I48N.
比如2009年这个数值为1200个。
‘The iceberg risk in 1912, in terms of number entering the northwest Atlantic shipping lanes, was therefore large, but not unprecedented,’ the authors write.
作者还在论文中写道:“1912年存在的冰山风险,从大西洋西北部海域上存在的冰山数量来说,是很大的,但也并非前所未有。”
Icebergs, however, generally lose most of their size while drifting south.
但是这些冰山在向南漂浮的过程中改变了原来的大小。
It is thought that the Titanic iceberg was up to 605ft (185m) deep and about 410ft (125m) long, quite large for one so far south.
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