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Applied Optics

Applied Optics


  • Vol. 39, Iss. 27 — Sep. 20, 2000
  • pp: 4879–4885

Temporal coherence of individual turbulent patterns in atmospheric seeing

Brian Kern, Ted A. Laurence, Chris Martin, and Paul E. Dimotakis  »View Author Affiliations

Applied Optics, Vol. 39, Issue 27, pp. 4879-4885 (2000)

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We used a variation of the generalized scidar (scintillation detection and ranging) technique to examine the temporal coherence of turbulent patterns at different altitudes in the atmosphere above Palomar Observatory. This enables us to test the validity of a frozen turbulence hypothesis in the local reference frame of the moving atmosphere. The data set analyzed here contains three turbulent patterns, each at a different altitude, which remain internally coherent over time scales of 0.28–0.41 s. This measurement is significant, because it is made on a 5-m aperture, allowing moving patterns to be tracked over time scales longer than their own lifetimes.

© 2000 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.7060) Atmospheric and oceanic optics : Turbulence
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(280.7060) Remote sensing and sensors : Turbulence

Brian Kern, Ted A. Laurence, Chris Martin, and Paul E. Dimotakis, "Temporal coherence of individual turbulent patterns in atmospheric seeing," Appl. Opt. 39, 4879-4885 (2000)

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