Ground-based measurements of atmospheric backscatter and absorption using coherent CO2 lidar
Abstract
In the present derivation of vertical profiles of atmospheric absorption and backscatter coefficients from coherent pulsed Doppler lidar by means of a slant path method, a strong seasonal variation of absorption and backscatter is evident throughout the lower troposphere. Measurements beyond the lower troposphere are hampered by modest pulse energy and lidar beam absorption, although small backscatter values are occasionally observed at midtropospheric levels during the winter months, when absorption is minimal. While a monomodal lognormal backscatter distribution is found within the lower boundary layer, evidence of a bimodal lognormal distribution is found at higher levels.
- Publication:
-
Applied Optics
- Pub Date:
- November 1985
- DOI:
- 10.1364/AO.24.003487
- Bibcode:
- 1985ApOpt..24.3487R
- Keywords:
-
- Atmospheric Attenuation;
- Atmospheric Optics;
- Backscattering;
- Optical Radar;
- Pulse Doppler Radar;
- Scattering Coefficients;
- Annual Variations;
- Atmospheric Scattering;
- Photoabsorption;
- Probability Distribution Functions;
- Troposphere;
- Vertical Distribution;
- Lasers and Masers;
- AEROSOLS;
- BACKSCATTERING;
- ABSORPTION;
- LIDAR;
- ATMOSPHERIC OPTICS;
- REMOTE SENSING