Acoustic waves and electrical signature from strokkur geyser, Iceland and pōhutu geyser, New Zealand ...
<!--!introduction!--> Despite being very different in many aspects, geysers and lava fountains show similar surface expressions in the form of a two-phase (liquid and gas) jetting fountain driven by gas migration to the surface. Unlike lava fountains, some geysers are regularly active and safe...
| Main Authors: | , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
GFZ German Research Centre for Geosciences
2023
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.57757/iugg23-4964 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5021363 |
| Summary: | <!--!introduction!--> Despite being very different in many aspects, geysers and lava fountains show similar surface expressions in the form of a two-phase (liquid and gas) jetting fountain driven by gas migration to the surface. Unlike lava fountains, some geysers are regularly active and safe to approach thus offering an opportunity to study the connection between geophysical measurements and fountain dynamics. Understanding the dynamics of geyser eruptions may therefore provide insight into the hazard assessment of their magmatic counterpart. Here we compare acoustic (infrasonic to audible spectrum), and electric (atmospheric electric field variation) data to video recordings of eruptions of Strokkur geyser in Iceland and Pōhutu geyser in the Te Puia hydrothermal area, New Zealand. While Strokkur consists of an impulsive single vent source, the Te Puia hydrothermal field consists of multiple closely spaced geysers with overlapping eruption times. We deployed a small aperture, high sample rate ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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