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Science 4 March 1977:
Vol. 195. no. 4281, pp. 871 - 873
DOI: 10.1126/science.195.4281.871
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Articles

Eruptions of the St. Augustine Volcano: Airborne Measurements and Observations

PETER V. HOBBS 1, LAWRENCE F. RADKE 1, and JEFFREY L. STITH 1

1 Atmospheric Sciences Department, University of Washington, Seattle 98195

Airborne measurements of the effluents from the St. Augustine volcano obtained during a 10-day period of activity showed that aerosol was ejected at the rate of about 105 kilograms per second during brief eruptions (3 to 8 minutes). Steadier emissions contained much more water vapor and gaseous sulfur but less aerosol mass. A nuée ardente (glowing avalanche) produced by one eruption reached a maximum average speed of about 50 meters per second.

Submitted on May 3, 1976
Revised on August 4, 1976


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Airborne Studies of the Emissions from the Volcanic Eruptions of Mount St. Helens.
P. V. Hobbs, P. V. HOBBS, L. F. RADKE, M. W. ELTGROTH, and D. A. HEGG (1981)
Science 211, 816-818
   Abstract »    PDF »
Volcanic Contribution of Chlorine to the Stratosphere: More Significant to Ozone Than Previously Estimated?.
D. A. Johnston and D. A. JOHNSTON (1980)
Science 209, 491-493
   Abstract »    PDF »
Particles in the Eruption Cloud from St. Augustine Volcano.
R. D. Cadle, R. D. CADLE, and E. J. MROZ (1978)
Science 199, 455-457
   PDF »
Particles in the Eruption Cloud from St. Augustine Volcano.
P. V. HOBBS, L. F. RADKE, and J. L. STITH (1978)
Science 199, 457-458
   PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)