Abstract

On September 25, 1992, we used NOAA's pulsed CO₂ Doppler lidar (Post and Cupp, 1990) to observe the passage of a dry cold front across northeastern Colorado. This particular front was chosen because of 1) its dry nature, which minimized cloud cover and maximized the utility of the lidar, and 2) its intensity, exhibiting tropopause fold characteristics in the 12 h preceding the period of observations. Because of enhanced backscatter throughout the troposphere and lower stratosphere from the eruption of Mt. Pinatubo (in June, 1991), a much larger than normal volume of the atmosphere was observed.

© 1993 Optical Society of America