Physics – Optics
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19..183g&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 19, Jan. 24, 1992, p. 183-186. Research supported by NASA and NSF.
Physics
Optics
18
Absorption Spectra, Aerosols, Air Pollution, Atmospheric Optics, Infrared Spectra, Volcanoes, Plumes, Vertical Distribution
Scientific paper
Absorption features of the nu sub 1 band of SO2 are identified in high-resolution IR solar-absorption spectra recorded from Mauna Loa, Hawaii, on July 9 and 12, 1991, shortly after the arrival of the first eruption plume from the Mt. Pinatubo volcano. A total SO2 vertical column amount of (5.1 +/- 0.5) x 10 exp 16 molecules/sq cm on July 9 is retrieved based on nonlinear least-squares spectral fittings of 9 selected SO2 absorption features with an updated set of SO2 spectral parameters. A SO2 total-column upper limit of 0.9 x 10 exp 16 molecules/sq cm deduced from measurements on September 20-24, 1991, is consistent with the dispersion of the SO2 cloud and the rapid conversion of the SO2 vapor into volcanic aerosol particles.
Blatherwick Ronald D.
David Shelle J.
Goldman Abby
Murcray David G.
Murcray Frank James
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