Georods: the development of a four-element geophone for improved seismic imaging of glaciers and ice sheets
Active seismic imaging of glaciers and ice sheets is important for constraining inputs toclimate models, such as englacial ice fabric and the nature of the basal interface. However, acquiringhigh-quality seismic data is time-consuming and resource-intensive. Using traditional single-elementgeophones...
| Published in: | Annals of Glaciology |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Int Glaciol Soc
2013
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| Subjects: | |
| Online Access: | https://doi.org/10.3189/2013AoG64A432 http://ecite.utas.edu.au/103756 |
| Summary: | Active seismic imaging of glaciers and ice sheets is important for constraining inputs toclimate models, such as englacial ice fabric and the nature of the basal interface. However, acquiringhigh-quality seismic data is time-consuming and resource-intensive. Using traditional single-elementgeophones requires ideal weather conditions (e.g. light winds) and excellent source coupling. Inaddition, deploying and retrieving these geophones is slow and cumbersome.We have developed a four elementgeorod that enhances signal levels by 2030 dB in a variety of conditions, including blowingsnow and poorly coupled source detonations. The long, slender design of these georods makes them easyto deploy and retrieve, allowing researchers to acquire greater line-kilometers of seismic data duringfield campaigns that are commonly time-constrained. |
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