南极冰盖
外观
南极冰盖是地球上的两个极地冰盖之一。它覆盖了南极大陆的大约98%(1400万平方公里)的面积,体积是2650万立方公里,是地球上面积最大的单一冰块[1]。一立方公里的冰大约有一公吨重,这意味着南极冰盖的重量为26,500,000公吨。地球上所有淡水的大约61%位于南极洲的冰层中,若全部融化,相当于海平面上升大约58米[2]。
参考文献
[编辑]- ^ Amos, Jonathan. BBC News - Antarctic ice volume measured. Bbc.co.uk. 2013-03-08 [2014-01-28]. (原始内容存档于2019-12-30).
- ^ P. Fretwell. Bedmap2: improved ice bed, surface and thickness datasets for Antarctica (PDF). The Cryosphere. 31 July 2012 [1 December 2015]. (原始内容存档 (PDF)于2020-02-16).
Using data largely collected during the 1970s, Drewry et al. (1992), estimated the potential sea-level contribution of the Antarctic ice sheets to be in the range of 60-72 m; for Bedmap1 this value was 57 m (Lythe et al., 2001), and for Bedmap2 it is 58 m.