Measuring Volcanic Gas with UV Spectrometer
Gases such as CO2 and SO2 are contained within magma that rises beneath volcanoes. Gas emissions often increase and change composition prior to volcanic eruptions. monitoring of gas emissions has become an important component of volcano monitoring programs. This animation explains the principles of volcanic gas monitoring using ultraviolet spectrometry. The animation was developed by the Mt St Helens Institute, US Geological Survey Johnston Ridge Observatory, IRIS, and EarthScope.