Report on Atmospheric Effects (1980-1989) — July 1987
Atmospheric Effects (1980-1989)
Scientific Event Alert Network Bulletin, vol. 12, no. 7 (July 1987)
Managing Editor: Lindsay McClelland.
Atmospheric Effects (1980-1989) New aerosols extend into lower stratosphere
Please cite this report as:
Global Volcanism Program, 1987. Report on Atmospheric Effects (1980-1989) (McClelland, L., ed.). Scientific Event Alert Network Bulletin, 12:7. Smithsonian Institution.
Atmospheric Effects (1980-1989)
All times are local (unless otherwise noted)
New aerosols that extended into the lower stratosphere were detected at several locations in May and June: at Mauna Loa, Hawaii in each of seven lidar measurements 19 May-30 June; at Fukuoka, Japan on 11 and 25 June but not on three other June dates; at Hampton, VA on 10 and 18 June but not on the 25th or 29th; and from balloons above Laramie, WY on 29 May and 8 July. Peaks near the local tropopause were observed from Garmisch-Partenkirchen Germany beginning 24 May and on most dates through the end of July (table 4). However, July lidar data from Hawaii (figure 44) and Virginia no longer revealed any new material (figure 45).
Date | Peak Altitude (km) | Tropopause (km) | Scattering Ratio |
24 May 1987 | 10.2 | 9.3 | 1.4 |
10 Jun 1987 | 13.2 | 11.4 | 1.4 |
22 Jun 1987 | 10.8 | 10.6 | 1.4 |
28 Jun 1987 | 15.0 | 13.5 | 1.3 |
10 Jul 1987 | 14.4 | 13.4 | 1.3 |
11 Jul 1987 | 13.8 | 13.1 | 1.5 |
11 Jul 1987 | 16.2 | -- | 1.6 |
12 Jul 1987 | 12.6 | 12.3 | 1.3 |
12 Jul 1987 | 15.6 | -- | 1.3 |
29 Jul 1987 | 14.4 | 11.2 | 1.2 |
Information Contacts: Horst Jäger, Fraunhofer-Institut für Atmosphärische Umweltforschung, Kreuzeckbahnstrasse 19, D-8100 Garmisch-Partenkirchen, West Germany; Thomas DeFoor, Mauna Loa Observatory, P. O. Box 275, Hilo, HI 23665 USA; William Fuller, NASA Langley Research Center, Hampton, VA 23665 USA.