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Balloonborne measurements of the Pinatubo aerosol size distribution and volatility at Laramie, Wyoming during the summer of 1991

Deshler, T., Hofmann, D. J., Johnson, B. J., Rozier, W. R.·1992·Geophysical Research Letters

Abstract

Measurements using balloonborne optical particle counters at Laramie, Wyoming during the summer of 1991 are used to study the particle size distribution and volatility of the aerosol which formed in the stratosphere following the mid‐June eruptions of Mt. Pinatubo. Enhanced aerosol layers were observed below 20 km as early as 16 July, about 1 month after the eruption. During late July, a transient though substantial particle layer was observed in the 23 km region. High concentrations of large particles in this high altitude layer resulted in aerosol mass mixing ratios as large as 0.5 ppm, considerably larger than observed following the eruption of El Chichón. Aerosol volatility tests indicated that well over 90% of the particles were composed of an H 2 SO 4/H 2 O solution in all layers observed, indicating rapid conversion of SO 2 to H 2 SO 4 and subsequent droplet growth. High concentrations of droplets suggest homogeneous or ion nucleation as the most likely aerosol production mechanism.

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Metadata

Authors
Deshler, T., Hofmann, D. J., Johnson, B. J., & Rozier, W. R.
Venue
Geophysical Research Letters
Published
1992-01-24
Volume
19
Issue
2
Pages
199-202
ISSN
  • 0094-8276 (ISSN-L)
  • 1944-8007
OpenAlex
W2104953453
Cited by
188
References
0
FWCI
38.18
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Balloonborne measurements of the Pinatubo aerosol size distribution and volatility at Laramie, Wyoming during the summer of 1991. https://app.cochat.ai/papers/10.1029/91gl02787
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Deshler, T., Hofmann, D. J., Johnson, B. J., & Rozier, W. R. (1992). Balloonborne measurements of the Pinatubo aerosol size distribution and volatility at Laramie, Wyoming during the summer of 1991. Geophysical Research Letters. https://doi.org/10.1029/91gl02787

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