Lidar Measurements Of Mount St. Helens Effluents

M. Patrick McCormick

doi:10.1117/12.7972905

1 April 1982 Lidar Measurements Of Mount St. Helens Effluents

M. Patrick McCormick

Author Affiliations +

Optical Engineering, Vol. 21, Issue 2, 212340 (April 1982). https://doi.org/10.1117/12.7972905

Abstract

Lidar measurements of the worldwide movement of stratospheric aerosols produced by the 18 May 1980 eruption of Mount St. Helens are described. Ground-based and airborne measurements show that the layers below 20 km produced by this eruption moved in an easterly direction while those above 20 km moved in a westerly direction. The effluent at jet stream altitudes of 10 to 12 km circled the globe in about 16 days and the effluent at 23 km (the highest altitude recorded) circled the globe in about 56 days. Mass calculations, using backscatter-to-mass conversion models, indicate that approximately 0.5 X 106 metric tons of new stratospheric material were produced by this eruption. Even though this represents a 200% increase in North-ern Hemispheric aerosol, no significant long-term atmospheric temperature change should occur.

Citation Download Citation

M. Patrick McCormick "Lidar Measurements Of Mount St. Helens Effluents," Optical Engineering 21(2), 212340 (1 April 1982). https://doi.org/10.1117/12.7972905

Published: 1 April 1982

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available