Field team installs scanning DOAS at Mount St. Helens
USGS Cascades Volcano Observatory Physical Science Technician Brian Meyers installs a data telemetry antenna on a volcano monitoring station at Mount St. Helens. A DOAS scanner is mounted above the flat-panel antenna at the top of the mast. A fiber optic cables transmits the light collected by the DOAS scanner to a spectrometer inside the fiberglass hut. Data is transmitted to CVO for analysis.