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Proceedings Paper

Effect Of The Turbulence Inner Scale On Scintillation In The Atmosphere
Author(s): Mark J. Beran; Alan M. Whitman
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Paper Abstract

Scintillation indices as high as four to six have been measured in experiments in the atmosphere. The inner scale of turbulence has a dramatic effect on the value of the scintillation index when the index is greater than unity. Here we review theory which shows that, in order to obtain such high values, it is necessary to modify the Kolmogorov form by the addition of an inner scale. We present results for plane wave and point source initial conditions and show that, without an inner scale, the maximum scintillation index that may be obtained is much below experimental results. Moreover, we show that, even with the inner scale included, we must have a point-source-type initial condition rather than a plane-wave-type initial condition. We also discuss the effect of the particular modification of the Kolmogorov form that is used to introduce the inner scale.

Paper Details

Date Published: 11 October 1989
PDF: 9 pages
Proc. SPIE 1115, Propagation Engineering, (11 October 1989); doi: 10.1117/12.960855
Show Author Affiliations
Mark J. Beran, Statcon Incorporated (United States)
Alan M. Whitman, Statcon Incorporated (United States)


Published in SPIE Proceedings Vol. 1115:
Propagation Engineering
Norman S. Kopeika; Walter B. Miller, Editor(s)

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