Remote sensing techniques to determine volcanic gas components and fluxes: Application for Lascar, Chile and Fagradalsfjall, Iceland volcanos.
Volcanic plumes allow us to understand different aspects of a volcanic system including magma movements, dynamics, mass transfer, overall gas emissions to the atmosphere, and many processes that impact human life. However, the Hâ‚‚O gas is poorly constrained due to the intrinsic difficulties of this...
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| Format: | Text |
| Language: | English |
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UNM Digital Repository
2024
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| Online Access: | https://digitalrepository.unm.edu/eps_etds/403 https://digitalrepository.unm.edu/context/eps_etds/article/1394/viewcontent/Thesis_submission_FRV_Checked.pdf |
| Summary: | Volcanic plumes allow us to understand different aspects of a volcanic system including magma movements, dynamics, mass transfer, overall gas emissions to the atmosphere, and many processes that impact human life. However, the Hâ‚‚O gas is poorly constrained due to the intrinsic difficulties of this gas, with high background values and easily dispersed/integrated into the background. In this work we study the gas emissions from Lascar volcano, and Fagradalsfjall volcano, in Chile and Iceland, respectively, using a combination of different ground-based remote sensing techniques and in situ plume measurements, we measure Hâ‚‚O, SOâ‚‚, COâ‚‚, CO, and Hâ‚‚S from longer and safer distances, and obtained gas-melt equilibria. This work shows the first measurements of Hâ‚‚O fluxes from these volcanoes using the near Infrared technique, a gas that comprises most of the volcanic gases and by itself could well above 70% in volume with important aspects in the volcanic system |
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