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Conferences > CLEO > 1993 > CTuN > CTuN55
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1993),
  • paper CTuN55

Lidar measurement of gas emission from Italian volcanoes

H. Edner, P. Ragnarson, S. Svanberg, E. Wallinder, A. De Liso, and R. Ferrara

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Abstract

Volcanoes are known to be strong emitters of environmental pollutants. Measurements with a Swedish mobile lidar system1 that was used on board the Italian CNR oceanographical vessel "Urania" making underpasses of the plumes from the Sicilian volcanoes Mount Etna, Stromboli, and Vulcano are described. The lidar system has a Nd:YAG- pumped dye laser as a transmitter for generation of wavelengths around 299 and 254 nm for measurements of SO2 and Mg respectively. A 40 cm diameter upward looking receiving telescope was used. Simultaneous measurements with an upward- looking passive differential absorption spectroscopy (DOAS) instrument2 for SO2 were performed. Atomic mercury lidar measurements have special requirements for laser linewidth and wavelength stability that have previously been discussed.3,4

© 1993 Optical Society of America

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