Aureole Lidar: Ground Based Measurement
Abstract
An optical receiver (aureole) with a 50 milliradian field of view is used to measure the light reflected off a topographic target and forward scattered from aerosol particles back to the receiver. Simultaneously, a laser radar (lidar) backscatter profile is recorded. The aureole intensity provides a constraint of the inversion of lidar backscatter onto extinction profiles. A comparison between values of lidar reflection and aureole values is shown for data from 14 days. Atmospheric conditions on these days varied from extremely clear to fog and rain. Using the lidar/aureole relationship, four hundred consecutive lidar profiles are inverted into extinction profiles and displayed in a time-range false color display. This data was taken prior to the passage of a thunderstorm and reveals lidar's ability to observe the optical differences in small scale turbulent eddies. (rh)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 11, 1990
- Accession Number
- ADA223207
Entities
People
- W. P. Hooper
Organizations
- United States Naval Research Laboratory