Effect of scattered light on the accuracy of thin clouds optical thickness measurement by a sun photometer

Iosif L. Katsev; Eleonora P. Zege; Alexander S. Prikhach; Igor N. Polonsky

doi:10.1117/12.196693

23 December 1994 Effect of scattered light on the accuracy of thin clouds optical thickness measurement by a sun photometer

Iosif L. Katsev, Eleonora P. Zege, Alexander S. Prikhach, Igor N. Polonsky

Author Affiliations +

Proceedings Volume 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II; (1994) https://doi.org/10.1117/12.196693
Event: Satellite Remote Sensing, 1994, Rome, Italy

Abstract

The method and computation algorithm have been developed to assess the effect of scattered light on a signal received by a sun photometer while a cloud optical thickness is measured. The approach provides estimations of impact of scattered light for any receiver field of view with allowance for angular dispersion of sunlight. The accuracy of measurements has been investigated as a function of zenith angle of the Sun, receiver field of view, wavelength, cloud optical thickness. The effect of aerosol scattering is an undercloud layer on the accuracy of cloud optical thickness measurement has also been considered.

Citation Download Citation

Iosif L. Katsev, Eleonora P. Zege, Alexander S. Prikhach, and Igor N. Polonsky "Effect of scattered light on the accuracy of thin clouds optical thickness measurement by a sun photometer", Proc. SPIE 2309, Passive Infrared Remote Sensing of Clouds and the Atmosphere II, (23 December 1994); https://doi.org/10.1117/12.196693

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