Optical Extinction in Clouds at Multiple Wavelengths
Document ID: 353
Schuster, G. L.1
Esposito, Steven T.1
Philbrick, C. Russell1
1 The Pennsylvania State University, Department of Meteorology
The Pennsylvania State University, Department of Electrical Engineering and Applied Research Laboratory
Presented: United States Naval Academy
Annapolis, Maryland, July 6-10 1998
Report Introduction
The Lidar Atmospheric Profile Sensor, { LAPS) developed at Penn State University is used to measure the total atmospheric extinction coefficient at 28 4 nm, 530 nm, and 607 nm during the Southern California Ozone Study { SCOS). Extinction data at these wavelengths are presented during the development of a low-level cloud. While greater extinction at the ultra-violet {UV) wavelength is observed below the cloud {because of larger contributions of molecular Rayleigh scattering, small particle aerosol scattering and ozone absorption), the visible extinction becomes comparable to the UV extinction at cloud base. A time series of the visible extinction as the cloud grows is presented.
| Citation: | "Optical Extinction in Clouds at Multiple Wavelengths", Schuster, G. L., S. T. Esposito, C. R. Philbrick, Nineteenth International Laser Radar Conference, NASA, July 1998, pp. 193 - 194 |