Journal article
Sulfur dioxide and particles in quiescent volcanic plumes from Poas, Arenal, and Colima volcanos, Costa Rica and Mexico
Journal of Geophysical Research, v 89(D6), pp 9633-9641
20 Oct 1984
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Abstract
Measurements of SO (sub 2) emission rates and concentrations and of particle distribution, size, shape, and composition were made in quiescent volcanic plumes emitted into the troposphere from Poas and Arenal volcanos, Costa Rica, and Colima volcano, Mexico. SO (sub 2) emission rates were 700 + or -180 metric tons per day (t/d) for Poas, 210 + or - 30 t/d for Arenal, and 320 + or - 50 t/d for Colima. The concentrations of SO (sub 2) calculated from the COSPEC/lidar data were 5-380 ppb. Concentrations of SO (sub 2) measured directly by flame photometry were 10-250 ppb. Particles collected in the plumes with a quartz crystal microbalance impactor were mostly less than 3 mu m in diameter and consisted of droplets of dilute sulfur-bearing solutions and minor amounts of larger silicate particles coated with a sulfur-bearing film or crust. Total particle concentrations were 4.7 mu g/m (super 3) for Poas and 18.8 mu g/m (super 3) for Colima. Comparison of concentrations of SO (sub 2) in the plumes with gas samples collected at fumaroles on the ground suggests that the plumes are diluted by the atmosphere by factors of up to 10 (super 5) .
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Details
- Title
- Sulfur dioxide and particles in quiescent volcanic plumes from Poas, Arenal, and Colima volcanos, Costa Rica and Mexico
- Creators
- Thomas J. Casadevall - U. S. Geol. Surv. Vancouver, WA USA United StatesWilliam I. RoseWilliam H. Fuller - United States Geological SurveyWilliam H. Hunt - United States Geological SurveyMark A. Hart - United States Geological SurveyJarvis L. MoyersDavid C. WoodsRaymond L. ChuanJames P. Friend - Drexel University
- Publication Details
- Journal of Geophysical Research, v 89(D6), pp 9633-9641
- Publisher
- American Geophysical Union
- Number of pages
- 9
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:A1984TN27700014
- Scopus ID
- 2-s2.0-0021641330
- Other Identifier
- 991022043491304721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Meteorology & Atmospheric Sciences