Computer Science – Sound
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20.1435d&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 14, p. 1435-1438.
Computer Science
Sound
150
Aerosols, Balloon Sounding, Particle Size Distribution, Vertical Distribution, Volatility, Annual Variations, Balloon-Borne Instruments
Scientific paper
Vertical profiles of aerosol have been measured approximately biweekly since June 1991 at Laramie (Wyoming). Both the total number concentration and the concentration of particles greater than 0.15 to 10.0 microns were measured using balloonborne instruments. The aerosol size distributions were best represented when bimodal lognormal distributions were fit to the data. After an early short-lived intense aerosol layer, the stratospheric maximum surface area and mass (40 sq micron/cu cm, 160 ppbm) was observed to occur approximately 180 days after the eruption. The aerosol was then observed to remain relatively homogeneous both in altitude and time during 1992, with the maximum surface area and mass remaining relatively constant between 20 to 30 sq micron/cu cm and 30 to 60 ppbm.
Deshler Terry
Johnson Bryan J.
Rozier William R.
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