Decay of Mount Pinatubo aerosol at midlatitudes in the northern and southern hemispheres

Journal Article · Tue Dec 20 04:00:00 EST 1994 · Journal of Geophysical Research

DOI:https://doi.org/10.1029/94JD02312· OSTI ID:114767

Rosen, J M; Kjome, N T ^[1]; McKenzie, R L ^[2]

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1. Univ. of Wyoming, Laramie, WY (United States)
2. National Institute of Water and Atmospheric Research, Lauder (New Zealand); and others

Conjugate in situ observations of the stratospheric aerosol following the 1991 Mount Pinatubo eruption were made over Laramie, Wyoming (41{degrees}N), and Lauder, New Zealand (45{degrees}S), using balloon-borne backscattersondes. The results show similar aerosol loading and decay rates occuring over both midlatitude locations. A comparision with the 1982 El Chicohon eruption as observed over Laramie indicates only somewhat higher mass mixing ratios for the Pinatubo eruption and very similar decay rates. As in the past, a strong correlation between local tropopause pressure and stratospheric aerosol mass loading was observed at the stations involved. Such a feature would be potentially useful for putting local measurements into a global prospective. 25 refs., 6 figs.

• OSTI ID: 114767
• Journal Information: Journal of Geophysical Research, Journal Name: Journal of Geophysical Research Journal Issue: D12 Vol. 99; ISSN JGREA2; ISSN 0148-0227
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AEROSOLS
LIFETIME
NEW ZEALAND
STRATOSPHERE
VOLCANIC GASES
WYOMING