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Multiple scattering in atmospheric clouds: lidar observations.
Applied Optics
|February 19, 2010
Summary
This study quantifies multiple scattering in cloud lidar backscattering using a ruby laser. Depolarization measurements reveal insights into cloud properties and scattering behavior.
Area of Science:
- Atmospheric optics
- Remote sensing
- Cloud physics
Background:
- Multiple scattering significantly impacts lidar signals from clouds.
- Understanding scattering properties is crucial for accurate cloud remote sensing.
- Polarization of light provides valuable information about scattering processes.
Purpose of the Study:
- To investigate the contribution of multiple scattering to lidar backscattering from clouds.
- To utilize signal depolarization measurements for quantifying multiple scattering.
- To compare experimental findings with theoretical models.
Main Methods:
- Utilized a ruby laser operating at 694 nm for lidar measurements.
- Employed a multichannel lidar receiver to measure signal depolarization.
- Analyzed depolarization data to infer multiple scattering effects.
Main Results:
- Presented experimental data for cumulus clouds and ground-level fog.
- Demonstrated that depolarization can quantify multiple scattering.
- Found that single scattering largely retains incident polarization.
Conclusions:
- Multiple scattering significantly affects lidar signals in clouds.
- Depolarization measurements offer a viable method for assessing multiple scattering.
- The findings align with theoretical predictions for cloud scattering.
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