Retreating glacier fronts on the Antarctic Peninsula over the past half-century
Retreating glacier fronts on the Antarctic Peninsula over the past half-century
复制标题
DOI：
10.1126/science.1104235
复制
发表时间：
2005-04-22
期刊：
影响因子：
56.9
通讯作者：
Ferrigno, JG
中科院分区：
文献类型：
--
作者：
Cook, AJ;Fox, AJ;Ferrigno, JG
南极半岛冰架的持续撤退被广泛归因于最近的大气变暖，但很少有出版的著作描述冰川边缘位置的变化。我们介绍了过去61年来半岛和相关岛屿上244个海洋冰川锋面的趋势。在这些冰川中，87%的冰川已经后退，平均进退之间的明显边界逐渐向南迁移。这种模式与大气变暖导致的冰川消退大体一致，但迁徙的速度表明，这可能不是该地区冰川消退的唯一驱动因素。
The continued retreat of ice shelves on the Antarctic Peninsula has been widely attributed to recent atmospheric warming, but there is little published work describing changes in glacier margin positions. We present trends in 244 marine glacier fronts on the peninsula and associated islands over the past 61 years. Of these glaciers, 87% have retreated and a clear boundary between mean advance and retreat has migrated progressively southward. The pattern is broadly compatible with retreat driven by atmospheric warming, but the rapidity of the migration suggests that this may not be the sole driver of glacier retreat in this region.