Physics
Scientific paper
Sep 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9.1093p&link_type=abstract
Geophysical Research Letters, vol. 9, Sept. 1982, p. 1093-1096.
Physics
22
Aerosols, Air Land Interactions, Air Sampling, Atmospheric Composition, Trace Elements, Volcanoes, Airborne Equipment, Atmospheric Effects, Particle Density (Concentration), Particulate Sampling, Plumes, Sulfur Compounds
Scientific paper
A study of the emissions from the Mt. St. Helens volcano was conducted to obtain data for an assessment of the importance of volcanoes as a global source of volatile trace elements to the atmosphere and to the global biochemical cycles of these elements. Sampling was done on board an Orion P-3 turboprop aircraft modified for tropospheric aerosol and gas sampling. Two filter collection systems were used. Samples were collected on a single flight on September 22, 1980, at which time the volcano was emitting a stable plume to an altitude of between 2 and 3 km. The results regarding the concentrations of aerosols obtained for this mission are presented in a table. Attention is also given to data concerning particulate vs. gas phase sulfur in the Mt. Saint Helens plume, and the estimated volcanic particle flux of selected volatile elements.
Ballantine D. S.
Finnegan David L.
Hart Mark A.
Moyers Jarvis L.
Phelan J. M.
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