While the Antarctic sea ice has expanded beyond levels that researchers have seen in the past, experts point to overall atmospheric changes, including shifts in pressures and winds, which can drive ice formations. TheNational Snow and Ice Data Centerreported that as of Sept. 19, for the first ...
WMO said that Antarctic sea ice levels last month - the hottest June ever recorded -- were at their lowest since satellite observations began, at 17% below average. "We're used to seeing these big reductions in sea ice in the Arctic, but not in the Antarctic. This is a massive decrease...
The team was able to discern that between 1979 and 1990, Antarctica shed an average of 40 billion tons of ice mass annually. From 2009 to 2017, about 252 billion tons per year were lost. And the rate of ice melt has increased as well, by nearly three times....
Ice shelves are giant tongues of ice floating on the ocean around the edges of the continent. The vast land-bound glaciers behind them are constantly pushing seaward. But because many shelves are largely confined within expansive bays and gulfs, they are compressed from the sides and slow the ...
A new study says that many of the ice shelves ringing Antarctica could be vulnerable to quick destruction if rising temperatures drive melt water into the numerous fractures that currently penetrate their surfaces. The shelves help slow interior glaciers
Antarctic ice mass balance is determined by precipitation and ice discharge, and understanding their relative contributions to contemporary Antarctic ice mass change is important to project future ice mass loss and resulting sea level rise. There has bee
WMO said that Antarctic sea ice levels last month were at their lowest since satellite observations began, at 17 per cent below average.
1A), a locally sourced compound glacier that is buttressed by, but ultimately coalesces with the Institute Ice Stream close to the contemporary grounding line of the AIS20, making the site highly sensitive to elevation changes across the broader WSE region21. Geochemically identified volcanic (...
If all the ice in the Antarctic melted, global sea levels would rise hugely.相关知识点: 试题来源: 解析 正确答案:Y 解析:根据题干中的信息词the Antarctic和sea levels定位到第一个小标题下的第一段,可知南极的冰非常多,如果冰全部融化,全球海平面就将大幅上升,故该句表述正确。
Both the Greenland ice sheet and the West Antarc-tic ice sheet are believed to be vulnerable to warming at the levels projected for the com-ing centuries. Sustaining those levels for many more centuries or millennia could ultimately cause the demise of both ice sheets — pro-ducing a world...