A comparison between line-averaged observation of C(n)-squared from scintillation of a CO2 laser beam and time-averaged in situ observations
Abstract
The refractive-index structure parameter C(n)-squared was measured from scintillation of a CO2 laser beam over a 5.9 km path at 40 m height and compared to in situ observations of C(n)-squared at the optical receiver location. A reasonable agreement is found, but 10 min averaged in situ C(n)-squared data have larger variability than optical C(n)-squared data due to scattered clouds and limited averaging time of the in situ measurements. The likely role of convective plumes in the difference in variability is discussed.
- Publication:
-
Journal of Climate and Applied Meteorology
- Pub Date:
- October 1985
- Bibcode:
- 1985JCAM...24.1099K
- Keywords:
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- Carbon Dioxide Lasers;
- Laser Beams;
- Refractivity;
- Scintillation;
- Atmospheric Optics;
- Convective Flow;
- Heat Flux;
- Infrared Lasers;
- Plumes;
- Lasers and Masers