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Report on Atmospheric Effects (1980-1989) — June 1989

Scientific Event Alert Network Bulletin, vol. 14, no. 6 (June 1989)
Managing Editor: Lindsay McClelland.

Atmospheric Effects (1980-1989) No new volcanic injections into the stratosphere

Please cite this report as:

Global Volcanism Program, 1989. Report on Atmospheric Effects (1980-1989). In: McClelland, L. (ed.), Scientific Event Alert Network Bulletin, 14:6. Smithsonian Institution.

Atmospheric Effects (1980-1989)

All times are local (unless otherwise noted)

Lidar data from Northern Hemisphere stations showed no evidence of new injections of volcanic material into the stratosphere (figure 67). A polar stratospheric cloud, with strongest backscatter at about 23 km altitude, was detected from Obninsk, USSR on 1 February.

Figure with caption Figure 67. Lidar data from various locations, showing altitudes of aerosol layers during January-June 1989. Note that some layers have multiple peaks. Backscattering ratios from Obninsk and Teplocklychenka are for the Nd-YAG wavelength of 0.53 µm; all others are for the ruby wavelength of 0.69 µm. Integrated values show total backscatter, expressed in steradians-1, integrated over 500-m intervals from 15-30 km at Obninsk and Teplocluchenka, and 300-m intervals from 16-33 km at Mauna Loa.

Information Contacts: Sergei Khmelevtsov, Institute of Experimental Meteorology, Lenin St. 82, Obninsk, Kaluga Reg., USSR; Thomas DeFoor, Mauna Loa Observatory, P. O. Box 275, Hilo, HI 96720 USA; Horst Jäger, Fraunhofer-Institut für Atmosphärische Umweltforschung, Kreuzeckbahnstrasse 19, D-8100 Garmisch-Partenkirchen, West Germany.