Considered individually , only the ross sea sector had a significant positive trend , while sea ice extent has actually decreased in the bellingshausen and amundsen seas .

个别来看，只有罗斯海区有显著的活动趋势，而在别林斯高晋海和阿蒙森海，海冰层实际上已经减少了。

There was a large regional variation difference in the 1990s , more ice in the eastern antarctica and obviously less ice in the west antarctica , both sides of the antarctic peninsula , especially in weddell sea and bellingshausen sea .

区域性变化差别大，东南极海冰偏多，西南极海冰即南极半岛两侧特别是威德尔海（weddellsea）区和别林斯高晋海（bellingshausensea）的冰明显偏少。