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

Donald E. Voigt, Leo E. Peters, Sridhar Anandakrishnan

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

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 fourelement '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.

Original languageEnglish (US)
Pages (from-to)142-148
Number of pages7
JournalAnnals of Glaciology
Volume54
Issue number64
DOIs
StatePublished - Sep 1 2013

All Science Journal Classification (ASJC) codes

  • Earth-Surface Processes

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