Report on Atmospheric Effects (1995-2001) — December 1996
Atmospheric Effects (1995-2001)
Bulletin of the Global Volcanism Network, vol. 21, no. 12 (December 1996)
Managing Editor: Richard Wunderman.
Atmospheric Effects (1995-2001) Lidar data from Germany may suggest an aerosol layer centered at about 19 km
Please cite this report as:
Global Volcanism Program, 1996. Report on Atmospheric Effects (1995-2001) (Wunderman, R., ed.). Bulletin of the Global Volcanism Network, 21:12. Smithsonian Institution.
Atmospheric Effects (1995-2001)
All times are local (unless otherwise noted)
Lidar data for part of 1996 (mid-May through the month of September) over Germany (table 8) indicated a possible aerosol layer centered between 14.7 and 21.6 km altitude. The possible layer's center often resided at ~19 km. The "ci" in Table 9 stands for cirrus. Cirrus in the tropopause region usually obscures the lower boundary of the aerosol layer.
Table 8. Backscattering ratios from German lidar data for the Nd-YAG wavelength of 0.53 µm, 16 May-30 September 1996. The equivalent backscattering ratios for ruby are in parentheses (ruby wavelength, 0.69 µm). Courtesy of Horst Jäger.
| DATE | LAYER ALTITUDE (km) (peak) | BACKSCATTERING RATIO | BACKSCATTERING INTEGRATED |
| Garmisch-Partenkirchen, Germany (47.5°N, 11.0°E) | |||
| 16 May 1996 | 11-30 (19.8) | 1.11 (1.20) | -- |
| 22 May 1996 | ci-29 (14.7) | 1.09 (1.20) | -- |
| 24 May 1996 | 12-31 (17.9) | 1.11 (1.20) | -- |
| 31 May 1996 | 14-38 (20.1) | 1.09 (1.20) | -- |
| 08 Jun 1996 | 14-27 (19.6) | 1.09 (1.20) | -- |
| 19 Jun 1996 | 9-27 (18.8) | 1.10 (1.20) | -- |
| 03 Jul 1996 | 13-28 (19.7) | 1.07 (1.20) | -- |
| 31 Jul 1996 | 11-30 (19.4) | 1.09 (1.20) | -- |
| 06 Aug 1996 | ci-26 (19.5) | 1.07 (1.20) | -- |
| 08 Aug 1996 | ci-27 (18.5) | 1.06 (1.10) | -- |
| 18 Aug 1996 | 12-27 (21.6) | 1.06 (1.10) | -- |
| 23 Aug 1996 | 11-26 (16.4) | 1.06 (1.10) | -- |
| 26 Sep 1996 | 12-26 (19.1) | 1.06 (1.10) | -- |
| 30 Sep 1996 | 12-25 (15.6) | 1.07 (1.20) | -- |
Information Contacts: Horst Jäger, Fraunhofer -- Institut für Atmosphärische Umweltforschung, Kreuzeckbahnstrasse 19, D-8100 Garmisch-Partenkirchen, Germany.
