Substantial thinning of a major east Greenland outlet glacier
Substantial thinning of a major east Greenland outlet glacier
复制标题
格陵兰东部主要出口冰川大幅变薄
DOI:
10.1029/1999gl008473
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发表时间:
2000
影响因子:
5.2
通讯作者:
E. Rignot
中科院分区:
文献类型:
--
作者:
R. Thomas;W. Abdalati;T. Akins;B. Csathó;E. Frederick;S. Gogineni;W. Krabill;S. Manizade;E. Rignot
Aircraft laser‐altimeter surveys in 1993 and 1998 over Kangerdlugssuaq Glacier in east Greenland reveal thinning, over the 5‐year interim, of several meters for all surveyed areas within 70 km of the seaward ice front, rising to 50 meters in the final 5 km. Such rapid thinning is best explained by increased discharge velocities and associated creep thinning, most probably caused by enhanced lubrication of the glacier bed. The calving ice front over the past decade has occupied approximately the same location as in 1966. Velocity estimates for 1995/96 are about the same as those for 1966 and 1988, but significantly less than for 1999, suggesting that major thinning began after 1995.