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
Accepted author manuscript, 19.4 MB, PDF document
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
Available under license: Unspecified
Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Radar Altimetry as a Robust Tool for Monitoring the Active Lava Lake at Erebus Volcano, Antarctica
AU - Peters, N. J.
AU - Oppenheimer, C.
AU - Brennan, P.
AU - Lok, L. B.
AU - Ash, M.
AU - Kyle, P.
PY - 2018/9/16
Y1 - 2018/9/16
N2 - 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.
AB - 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.
KW - active lava lake
KW - Erebus
KW - FMCW
KW - radar
U2 - 10.1029/2018GL079177
DO - 10.1029/2018GL079177
M3 - Journal article
AN - SCOPUS:85053274066
VL - 45
SP - 8897
EP - 8904
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 17
ER -