Some peculiarities in sounding cirrus clouds from space

Bruno Valentinov Kaul; Christian Werner

doi:10.1117/12.195860

9 December 1994 Some peculiarities in sounding cirrus clouds from space

Proceedings Volume 2310, Lidar Techniques for Remote Sensing; (1994) https://doi.org/10.1117/12.195860
Event: Satellite Remote Sensing, 1994, Rome, Italy

Abstract

Cirrus clouds are a specific atmospheric formation that essentially influence on the radiation balance in the atmosphere, hamper the operation of the Earth-Space optical communication systems, and distort the results of instrumental observations of the Earth from space. Very often cirrus clouds are invisible for spaceborne instruments which makes it difficult to properly account for the distortions they introduce into the observations. These and other circumstances make the detection of cirrus clouds and measurement of the characteristics with a spaceborne lidar an urgent problem of lidar technology. Sounding of cirrus clouds with a lidar has some peculiarities compared to sounding of lower level clouds, first of all because these clouds are mainly composed of crystal particles. Orientation of such particles that can occur due to the action of gravity, aerodynamic, and electrostatic forces makes lidar return signals strongly dependent on the angle at which sounding radiation is incident on the particles and on the state of sounding radiation polarization. To illustrate this statement we remind the existence of the effect of anomalous backscattering discussed. The effect occurs due to specular reflection of light from the plane surfaces of ice crystals.

Citation Download Citation

Bruno Valentinov Kaul and Christian Werner "Some peculiarities in sounding cirrus clouds from space", Proc. SPIE 2310, Lidar Techniques for Remote Sensing, (9 December 1994); https://doi.org/10.1117/12.195860

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