Changes in stratospheric water vapor associated with the Mount St. Helens eruption

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

DOI:https://doi.org/10.1126/science.211.4484.823· OSTI ID:5548786

Murcray, D G; Murcray, F J; Barker, D B; Mastenbrook, H J

A frost point hygrometer designed for aircraft operation was included in the complement of instruments assembled for the NASA U-2 flights through the plume of Mount St. Helens. Measurements made on the 22 May flight showed the water vapor to be closely associated with the aerosol plume. The water vapor mixing ratio by mass in the plume was as high as 40 x 10/sup -6/. This compares with values of 2 x 10/sup -6/ to 3 x 10/sup -6/ outside of the plume.

• OSTI ID: 5548786
• Journal Information: Science (Washington, D.C.); (United States), Vol. 211
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
MT ST HELENS
AIR POLLUTION
STRATOSPHERE
WATER VAPOR
AEROSOLS
ENVIRONMENTAL EFFECTS
ERUPTION
MOISTURE
PLUMES
VOLCANOES
CASCADE MOUNTAINS
COLLOIDS
DISPERSIONS
EARTH ATMOSPHERE
FEDERAL REGION X
FLUIDS
GASES
MOUNTAINS
NORTH AMERICA
POLLUTION
SOLS
USA
VAPORS
WASHINGTON
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)