科学家们现在有足够的数据来描绘世界上最大冰山A23a的实际规模。卫星测量数据显示,这块冰的平均厚度刚超过280米。 Imagine a field of ice more than twice the area of Greater London, but as thick as its skyscrapers are tall. This is A23a, current title holder of the world's biggest iceberg. 想象...
Antarctic scientists had a, quote, unique opportunity to observe the world's largest iceberg.CNN采访了南极考察队，了解了这股自然力量以及它下一步可能的去向。Three times the size of New York City, the iceberg broke away from the Filchner-Rahn ice shelf more than 30 years ago.南极科学家有一个...
True. The field of ice is as thick as Greater London's skyscrapers are tall. 2. How has the iceberg been measured? Scientists have used radar pulses from a European Space Agency satellite to essentially take a tape measure to the colossus. 3. What is the current mass of the iceberg? It...
The world’s largest iceberg is on the move again after being stuck for 30 years in the Weddell Sea. A23a is 3900 square kilometres in area, making it more than twice the size of Greater London and more than four times the size of New York City. It is 400 metres thick and it once...
This is A23a, current title holder of the world's biggest iceberg. 想象一下,一片冰原的面积是大伦敦面积的两倍多,而它的厚度却只有伦敦摩天大楼的高度那么厚。这就是 A23a 冰山,目前世界上最大的冰山。 Scientists have used radar pulses from a European Space Agency satellite to essentially take ...