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My current research focuses on interpreting shallow conduit processes using continuous sulfur dioxide emissions paired with coincident seismic and acoustic records. Recent study areas have included Santiaguito, Pacaya, and Fuego volcanoes, Guatemala, Colima and Popocatépetal volcanoes, Mexico, and Mount Saint Helens, Washington.
My research into sulfur dioxide emissions has been undertaken using a new instrument: a digital camera sensitive to UV wavelengths in the region of the SO2 absorption feature. This new instrument allows for insight into plume dynamics from two-dimensional measurements; an internally-derived plume speed obtained from image sequences; the ability to retrieve small-scale measurements (sub-meter-sized pixels and plume cross-sections) and comprehensive plume images simultaneously; and a dataset with a temporal resolution comparable to other geophysical datasets.
Colormap of SO2 pathlength concentration at Pacaya Volcano, Guatemala.