How good an estimator of turbulence strength is Cn2 at the boundary layer?

Marco Sepúlveda, Darío G. Pérez, Felipe Olivares, David G. Ortiz-Suslow, Ryan Yamaguchi, Qing Wang

Research output: Contribution to journalConference articlepeer-review


The Obukhov-Kolmogorov (OK) theory has provided us with the very well-known −11/3-power spectrum; widely assumed as a valid model for the refractive index fluctuations in the whole atmosphere. Within its reach, the strength of the fluctuations are conveyed by the structure constant, Cn2. Yet, the OK model presupposes the existence of statistical isotropy and homogeneity-both for the velocity and refractive index fluctuations. In this work, we show that this is a rare occurrence in turbulent airflow above the ocean. Therefore, we need to re-evaluate the physical meaning of Cn2 measurements.

Original languageEnglish
Article numberJTu5A.6
JournalOptics InfoBase Conference Papers
StatePublished - 2021
EventApplied Industrial Spectroscopy, AIS 2021 - Part of Optical Sensors and Sensing Congress 2021 - Virtual, Online, United States
Duration: 19 Jul 202123 Jul 2021


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