Report on Atmospheric Effects (1995-2001) — November 1998
Atmospheric Effects (1995-2001)
Bulletin of the Global Volcanism Network, vol. 23, no. 11 (November 1998)
Managing Editor: Richard Wunderman.
Atmospheric Effects (1995-2001) Lidar data from Hampton, Virginia, USA
Please cite this report as:
Global Volcanism Program, 1998. Report on Atmospheric Effects (1995-2001) (Wunderman, R., ed.). Bulletin of the Global Volcanism Network, 23:11. Smithsonian Institution.
Atmospheric Effects (1995-2001)
All times are local (unless otherwise noted)
Table 15 lists the ground-based 48-inch lidar measurements at 0.69 µm taken with a ruby laser in Hampton, Virginia (37.1°N, 76.3°W) during 1998. The lowest levels of aerosol loading ever reported in the 24-year lidar record at Hampton were measured during the summer of 1998.
Table 15. Lidar data from Virginia, USA, for April-December 1998 showing altitudes of aerosol layers. Backscattering ratios are for the ruby wavelength of 0.69 µm. The integrated values show total backscatter, expressed in steradians-1, integrated over 300-m intervals from the tropopause to 30 km. Courtesy of Mary Osborne.
| DATE | LAYER ALTITUDE (km) (peak) | BACKSCATTERING RATIO | BACKSCATTERING INTEGRATED |
| Hampton, Virginia (37.1°N, 76.3°W) | |||
| 03 Apr 1998 | 13-26 (19.6) | 1.09 | 4.11 x 10-5 |
| 07 Apr 1998 | 12-27 (14.5) | 1.10 | 5.38 x 10-5 |
| 13 Apr 1998 | 15-25 (21.5) | 1.06 | 2.98 x 10-5 |
| 20 May 1998 | 13-28 (25.9) | 1.08 | 3.42 x 10-5 |
| 19 Jun 1998 | 13-23 (20.9) | 1.04 | 1.70 x 10-5 |
| 02 Jul 1998 | 14-29 (18.8) | 1.06 | 1.17 x 10-5 |
| 14 Jul 1998 | 15-29 (18.5) | 1.05 | 1.62 x 10-5 |
| 10 Sep 1998 | 17-30 (27.7) | 1.06 | 0.89 x 10-5 |
| 24 Sep 1998 | 13-29 (16.6) | 1.11 | 2.99 x 10-5 |
| 15 Oct 1998 | 13-33 (14.2) | 1.11 | 4.81 x 10-5 |
| 24 Nov 1998 | 14-29 (17.9) | 1.10 | 3.79 x 10-5 |
| 02 Dec 1998 | 12-27 (18.2) | 1.09 | 3.15 x 10-5 |
Information Contacts: Mary Osborn, NASA Langley Research Center (LaRC), Hampton, VA 23681 USA.
