A low-cost glacier-mapping system

被引：29

作者：

Christensen, EL ^{[1
]}

Reeh, N

Forsberg, R

Jorgensen, JH

Skou, N

Woelders, K

机构：

[1] Tech Univ Denmark, Dept Electromagnet Syst, Danish Ctr Remote Sensing, DK-2800 Lyngby, Denmark

[2] Natl Survey & Cadastre, DK-2400 Copenhagen, Denmark

来源：

JOURNAL OF GLACIOLOGY | 2000年 / 46卷 / 154期

关键词：

D O I：

10.3189/172756500781833142

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

An old portable 60 MHz radar has been upgraded with a new digital data-processing and acquisition system and a new antenna construction enabling a fast and low-cost installation on a Twin Otter aircraft. Augmented by a laser altimeter and kinematic global positioning system (GPS), the system has the capability of acquiring accurate data on location and ice-surface elevation, and adequate-quality data on ice thickness. The system has been applied successfully in mapping the Nioghalvfjerdsfjorden glacier, northeast Greenland, in spite of the difficult conditions with melting water on the glacier surface. The measurements from the floating part of the glacier have been evaluated by comparison of radar data with laser-altimeter and in situ measurements.

引用

页码：531 / 537

页数：7

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