NASA NTRS · 19920041605
Mt. Pinatubo SO2 column measurements from Mauna Loa
Abstract
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.
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Goldman, A., Murcray, F. J., Rinsland, C. P., Blatherwick, R. D., David, S. J., Murcray, F. H., Murcray, D. G.. 1992-01-24. Mt. Pinatubo SO2 column measurements from Mauna Loa. https://ntrs.nasa.gov/citations/19920041605
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