Inner scale of turbulence as derived from NAVSLaM and applied to measurements of scintillation

R. Mahon; C. I. Moore; M. S. Ferraro; W. S. Rabinovich; P. A. Frederickson

doi:10.1117/12.2596032

1 August 2021 Inner scale of turbulence as derived from NAVSLaM and applied to measurements of scintillation

R. Mahon, C. I. Moore, M. S. Ferraro, W. S. Rabinovich, P. A. Frederickson

Proceedings Volume 11834, Laser Communication and Propagation through the Atmosphere and Oceans X; 118340V (2021) https://doi.org/10.1117/12.2596032
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Conference Poster

Abstract

Atmospheric turbulence parameters are measured routinely across the Chesapeake Bay. The 16.2km propagation path is slightly sloped, with the laser transmitter at a height of 30m while the receivers are at 5m above sea level. We measure angle-of-arrival variance to give C_n² and irradiance variance over various apertured receivers to give σ_I².The Navy Atmospheric Vertical Surface Layer Model (NAVSLaM) is used to predict C_n² that is based upon prevailing meteorological parameters. Comparison with measured C_n² over extended time periods shows reasonable correlation. A value of the inner scale of turbulence l0 is also predicted from NAVSLaM. This paper looks at the significance of using C_n² and l₀ from NAVSLaM in standard analytical models of scintillation.

Citation Download Citation

R. Mahon, C. I. Moore, M. S. Ferraro, W. S. Rabinovich, and P. A. Frederickson "Inner scale of turbulence as derived from NAVSLaM and applied to measurements of scintillation", Proc. SPIE 11834, Laser Communication and Propagation through the Atmosphere and Oceans X, 118340V (1 August 2021); https://doi.org/10.1117/12.2596032

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