Ongoing margin migration of Ice Stream B, Antarctica

被引：32

作者：

Echelmeyer, KA ^{[1
]}

Harrison, WD ^{[1
]}

机构：

[1] Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA

来源：

JOURNAL OF GLACIOLOGY | 1999年 / 45卷 / 150期

关键词：

D O I：

10.3189/S0022143000001866

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

The rate of margin migration of an ice stream can be determined using repeat measurements of the surface velocity profile within the marginal shear zone. The method relies on the assumption that the velocity profile is a characteristic feature of the margin, and that this profile is shifted laterally as the margin migrates. Application of the method to Ice Stream B, Antarctica, indicates that the southern margin is moving outward into the inland ice at a rate of at least 9.7 +/- 1.1 m a-(1).

引用

页码：361 / 369

页数：9

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