"Mapping subglacial surfaces of temperate valley glaciers by two-pass m" by Brian C. Welch, W. Tad Pfeffer et al.
 

Document Type

Article

Publication Title

Journal of Glaciology

Publisher

International Glaciological Society

Publication Date

1998

Volume

44

Issue

146

Disciplines

Earth Sciences | Glaciology

Abstract

High-resolution maps of the glacier bed are developed through a pseudo-three-dimensional migration of a dense array of radio-echo sounding profiles. Resolution of three-dimensional maps of sub-glacial surfaces is determined by the radio-echo sounding wavelength, data spacing in the field, and migration. Based on synthetic radio-echo sounding profile experiments, the maximum resolution of the final map cannot exceed one half-wavelength. A methodology of field and processing techniques is outlined to develop a maximum-resolution map of the glacier bed. The field and processing techniques valley glacier in south-central Alaska. The field techniques and the processing steps used on the glacier result in a map of 20 m x 20 m resolution.

Comments

Publisher: http://www.igsoc.org/

Rights

© International Glaciological Society

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