Earth and Planetary Sciences ETDs

Publication Date

Spring 4-1-2024


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 H₂O 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 H₂O, SO₂, CO₂, CO, and H₂S from longer and safer distances, and obtained gas-melt equilibria. This work shows the first measurements of H₂O 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

Degree Name

Earth and Planetary Sciences

Level of Degree


Department Name

Department of Earth and Planetary Sciences

First Committee Member (Chair)

Tobias Fischer

Second Committee Member

Scott Nowicki

Third Committee Member

Brandon Schmandt




volcano, water vapor, multigas, DOAS, spectroscopy, remote sensing

Document Type