Vertical distribution of temporal correlation of optical turbulence

Remy Avila; Elena Masciadri; Leonardo J. Sanchez; Jean Vernin; Alejandro Raga

doi:10.1117/12.459688

7 February 2003 Vertical distribution of temporal correlation of optical turbulence

Remy Avila, Elena Masciadri, Leonardo J. Sanchez, Jean Vernin, Alejandro Raga

Proceedings Volume 4839, Adaptive Optical System Technologies II; (2003) https://doi.org/10.1117/12.459688
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The temporal fluctuations of the optical turbulence at different altitudes in the atmosphere are investigated. About 2400 C²_N profiles, measured with a generalized scidar at the Observatorio Astronomico Nacional de San Pedro Martir, are used to determine the mean amplitude and characteristic time of the relative fluctuations of the optical turbulence in five atmospheric slabs. It is found that the saturation values of the relative fluctuations of the turbulence are 26%, 37%, 28% and 31% and the mean time for reaching 63% of these saturation values are 0.50, 0.20, 0.20 and 0.16 hours for the altitude slabs [2;4], [4;9], [9;16] and [16;21]km, respectively.

Citation Download Citation

Remy Avila, Elena Masciadri, Leonardo J. Sanchez, Jean Vernin, and Alejandro Raga "Vertical distribution of temporal correlation of optical turbulence", Proc. SPIE 4839, Adaptive Optical System Technologies II, (7 February 2003); https://doi.org/10.1117/12.459688

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