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El Chichon volcanic ash in the stratosphere - Particle abundances and size distributions after the 1982 eruptionVolcanic ash particles collected from the stratosphere after the March/April, 1982 explosive eruption of El Chichon volcano, Mexico, were mostly 2-40 micron vesicular shards of silicic volcanic glass that varied in abundance, at 16.8-19.2 km altitude, from 200 per cu m (30-49 deg N lat.) in May to 1.3 per cu m (45-75 deg N) in October. At the minimum, the ash cloud covered latitudes 10-60 deg N in July and 10 deg S-75 deg N in October. In May and July, ash particles were mostly free, individual shards (and clusters of shards) but, by October, were intimately associated with liquid droplets (presumably, sulfuric acid). In May 1982, the total stratospheric burden of ash was at least 240 tons (2.2 x 10 to the 8th g) although the total ash injected into the stratosphere by the eruption was probably 480-8400 tons.
Document ID
19840038625
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gooding, J. L.
(Northrop Services, Inc. Houston, TX, United States)
Clanton, U. S.
(NASA Johnson Space Center Planetary Materials Branch, Houston, TX, United States)
Gabel, E. M.
(Northrop Services, Inc. Houston, TX, United States)
Warren, J. L.
(Northrop Planetary Materials Laboratory Houston, TX, United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1983
Publication Information
Publication: Geophysical Research Letters
Volume: 10
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
84A21412
Distribution Limits
Public
Copyright
Other

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