Size distributions and mineralogy of ash particles in the stratosphere from eruptions of Mount St. Helens

Journal Article · Thu Jan 01 04:00:00 EST 1981 · Science (Washington, D.C.); (United States)

DOI:https://doi.org/10.1126/science.211.4484.832· OSTI ID:6918765

Farlow, N H; Oberbeck, V R; Snetsinger, K G; Ferry, G V; Polkowski, G; Hayes, D M

Samples from the stratosphere obtained by U-2 aircraft after the first three major eruptions of Mount St. Helens contained large globules of liquid acid and ash. Because of their large size, these globules had disappeared from the lower stratosphere by late June 1980, leaving behind only smaller acid droplets. Particle-size distributions and mineralogy of the stratospheric ash grains demonstrate inhomogeneity in the eruption clouds.

• OSTI ID: 6918765
• Journal Information: Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 211; ISSN SCIEA
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
AIR POLLUTION
ASHES
ATMOSPHERIC CHEMISTRY
ATMOSPHERIC PRECIPITATIONS
CASCADE MOUNTAINS
CHEMISTRY
EARTH ATMOSPHERE
ERUPTION
FEDERAL REGION X
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MINERALOGY
MOUNTAINS
MT ST HELENS
NORTH AMERICA
PARTICLE SIZE
POLLUTION
RAIN
RESIDUES
SAMPLING
SIZE
STRATOSPHERE
SULFURIC ACID
USA
WASHINGTON