Rights statement: ©2018. American Geophysical Union. All Rights Reserved. An edited version of this paper was published by AGU. Copyright 2018 American Geophysical Union. Peters, N. J., Oppenheimer, C., Brennan, P., Lok, L. B., Ash, M., & Kyle, P. (2018). Radar altimetry as a robust tool for monitoring the active lava lake at Erebus volcano, Antarctica. Geophysical Research Letters, 45, 8897–8904. https://doi.org/10.1029/2018GL079177
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Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License
Rights statement: ©2018. American Geophysical Union. All Rights Reserved.
Final published version, 6.16 MB, PDF document
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 16/09/2018 |
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<mark>Journal</mark> | Geophysical Research Letters |
Issue number | 17 |
Volume | 45 |
Number of pages | 8 |
Pages (from-to) | 8897-8904 |
Publication Status | Published |
Early online date | 2/09/18 |
<mark>Original language</mark> | English |
The level of lava within a volcanic conduit reflects the overpressure within a connected magma reservoir. Continuous monitoring of lava level can therefore provide critical insights into volcanic processes and aid hazard assessment. However, accurate measurements of lava level are not easy to make, partly owing to the often dense fumes that hinder optical techniques. Here we present the first radar instrument designed for the purpose of monitoring lava level and report on its successful operation at Erebus volcano, Antarctica. We describe the hardware and data-processing steps followed to extract a time series of lava lake level, demonstrating that we can readily resolve ∼1 m cyclic variations in lake level that have previously been recognized at Erebus volcano. The performance of the radar (continuous, automated data collection in temperatures of around −30 °C) indicates the suitability of this approach for sustained automated measurements at Erebus and other volcanoes with lava lakes.