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GMPV5.4

UV, visible and IR imaging of volcanic phenomena
Convener: Philipson Bani  | Co-Conveners: Talfan Barnie , Andrew Harris , Clive Oppenheimer 
Orals
 / Fri, 13 Apr, 15:30–17:00  / Room D2
Posters
 / Attendance Fri, 13 Apr, 17:30–19:00  / Hall X2
Imaging volcanic phenomena is one the most widely used remote sensing techniques that uses electromagnetic radiation sensors to record images which can be interpreted to yield useful information about volcanic activity. This definition spans a large range of the electromagnetic spectrum including ultraviolet, visible and infrared. But only recently has the ability of acquiring series of images on volcanoes pushed the domaine into the front line in volcanology thanks to the emerging new technologies and ongoing developments in miniaturization. Indeed, over the last ten years, ultraviolet and infrared imaging on volcanoes has vastly improved the ability to capture rapid gas and mass flux trends associated with explosions, puffing and passive degassing, as well as to constrain dynamic effusive processes. High acquisition rates of the cameras, has also made it possible to link imaging studies with the geophysical measurements (e.g., seismic and acoustic). In the visible imaging area the combinaison of visible imagery with modern photogrammetric approaches have demonstrated a strong capacity to detect and monitor morphological changes of volcanic edifices, quantifying volumes
of lava flow and dome growth, mapping pyroclastic deposits or lava flows. It is thus obvious that imaging volcanic activities constitutes a strong potential for volcanic process-orientated studies, hazard and risk assessment, and monitoring. This session aims to bring forward this field of investigation and invites contributions from any volcanic imaging study to these ends.