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Report on Atmospheric Effects (1995-2001) — January 1997

Bulletin of the Global Volcanism Network, vol. 22, no. 1 (January 1997)
Managing Editor: Richard Wunderman.

Atmospheric Effects (1995-2001) Lidar data from Hampton, Virginia, USA

Please cite this report as:

Global Volcanism Program, 1997. Report on Atmospheric Effects (1995-2001). In: Wunderman, R. (ed.), Bulletin of the Global Volcanism Network, 22:1. Smithsonian Institution.



Atmospheric Effects (1995-2001)

All times are local (unless otherwise noted)


Table 9 lists the 48-inch lidar measurements at 0.69 µm taken with a ruby laser in Hampton, Virginia (37.1°N, 76.3°W). An aerosol layer peak was located in the range 13-31 km altitude during early October; lidar backscatter ratios varied between 1.13 and 1.21.

Table 9. Lidar data from Virginia, USA, showing altitudes of aerosol layers. Backscattering ratio are for the ruby wavelength of 0.69 µm. Integrated values show total backscatter, expressed in steradians-1, integrated over 300-m intervals from the tropopause to 30 km.

DATE LAYER ALTITUDE (km) (peak) BACKSCATTERING RATIO BACKSCATTERING INTEGRATED
Hampton, Virginia (37.1°N, 76.3°W)
10 Oct 1996 14-29 (15.5) 1.15 4.94 x 10-5
31 Oct 1996 15-31 (27.5) 1.13 4.45 x 10-5
03 Dec 1996 12-30 (22.3) 1.16 5.58 x 10-5
01 Jan 1997 14-28 (21.1) 1.21 7.34 x 10-5
22 Jan 1997 13-28 (21.2) 1.19 6.41 x 10-5

Information Contacts: Mary Osborn, NASA Langley Research Center (LaRC), Hampton VA 23665, USA.