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Temporal coherence of individual turbulent patterns in atmospheric seeing

Kern, Brian and Laurence, Ted A. and Martin, Chris and Dimotakis, Paul E. (2000) Temporal coherence of individual turbulent patterns in atmospheric seeing. Applied Optics, 39 (27). pp. 4879-4885. ISSN 0003-6935.

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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.

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Martin, Chris0000-0002-8650-1644
Additional Information:© 2000 Optical Society of America Received 28 September 1999; revised manuscript received 31 May 2000. We thank Lee Armus for supplying our 8.5 s of observing time, Dan Lang for technical help, and the Palomar staff for accommodating our nonstandard observing habits. This study was supported by Caltech President’s Fund PF-404 and National Science Foundation (NSF) grant AST-9618811.
Issue or Number:27
Record Number:CaltechAUTHORS:KERao00
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5590
Deposited By: Archive Administrator
Deposited On:25 Oct 2006
Last Modified:09 Mar 2020 21:20

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