Report on Atmospheric Effects (1980-1989) — June 1985
Atmospheric Effects (1980-1989)
Scientific Event Alert Network Bulletin, vol. 10, no. 6 (June 1985)
Managing Editor: Lindsay McClelland.
Atmospheric Effects (1980-1989) El Chichón aerosols persist; tropospheric layers may be smoke from forest fires
Please cite this report as:
Global Volcanism Program, 1985. Report on Atmospheric Effects (1980-1989) (McClelland, L., ed.). Scientific Event Alert Network Bulletin, 10:6. Smithsonian Institution.
Atmospheric Effects (1980-1989)
All times are local (unless otherwise noted)
Persistent remnants of the El Chichón stratospheric aerosol cloud were measured over Virginia and Hawaii. Tropospheric aerosol layers were also detected by lidar over Virginia in late June and early July, and by an airline pilot at about 11 km altitude over Tennessee in late June. No volcanic source was recognized for the tropospheric aerosols, but many forert fires were burning in the western United States during this period. In early July, smoke from one major fire rose to 5.5 km altitude. Enhanced sunrises and sunsets have been reported from Boulder, Colorado, roughly 1,500 km away.
Information Contacts: W. Fuller, NASA; T. DeFoor, MLO; P. Handler, Univ. of Illinois; M. Matson, NOAA/NESDIS.
