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Georods: the development of a four-element geophone for improved seismic imaging of glaciers and ice sheets

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posted on 2023-05-18, 13:42 authored by Voigt, DE, Peters, LE, Anandakrishnan, S
Active seismic imaging of glaciers and ice sheets is important for constraining inputs to climate models, such as englacial ice fabric and the nature of the basal interface. However, acquiring high-quality seismic data is time-consuming and resource-intensive. Using traditional single-element geophones requires ideal weather conditions (e.g. light winds) and excellent source coupling. In addition, deploying and retrieving these geophones is slow and cumbersome.We have developed a four element ‘georod’ that enhances signal levels by 20–30 dB in a variety of conditions, including blowing snow and poorly coupled source detonations. The long, slender design of these georods makes them easy to deploy and retrieve, allowing researchers to acquire greater line-kilometers of seismic data during field campaigns that are commonly time-constrained.

History

Publication title

Annals of Glaciology

Volume

54

Issue

64

Pagination

142-148

ISSN

0260-3055

Department/School

Institute for Marine and Antarctic Studies

Publisher

Int Glaciol Soc

Place of publication

Lensfield Rd, Cambridge, England, Cb2 1Er

Rights statement

Copyright 2013 International Glaciological Society

Repository Status

  • Open

Socio-economic Objectives

Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts)

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