TY - JOUR

T1 - Instruments and Methods: A Low-Cost Glacier-Mapping System

A1 - Christensen,Erik Lintz

A1 - Reeh,Niels

A1 - Forsberg,René

A1 - Jørgensen,Jørn Hjelm

A1 - Skou,Niels

A1 - Woelders,Kim

AU - Christensen,Erik Lintz

AU - Reeh,Niels

AU - Forsberg,René

AU - Jørgensen,Jørn Hjelm

AU - Skou,Niels

AU - Woelders,Kim

PY - 2000

Y1 - 2000

N2 - 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.

AB - 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.

JO - Journal of Glaciology

JF - Journal of Glaciology

IS - 154

VL - 46

SP - 531

EP - 538

ER -