Concurrent aerial and ground-based optical turbulence measurements along a long elevated path

Scott R. Nowlin; Ila L. Hahn; Ronald J. Hugo; Kenneth P. Bishop

doi:10.1117/12.356980

3 August 1999 Concurrent aerial and ground-based optical turbulence measurements along a long elevated path

Scott R. Nowlin, Ila L. Hahn, Ronald J. Hugo, Kenneth P. Bishop

Proceedings Volume 3706, Airborne Laser Advanced Technology II; (1999) https://doi.org/10.1117/12.356980
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

We report concurrent ground-based scintillator/airborne constant-current anemometer (CCA) measurements made along a 51.4 km-long slant path between Salinas and North Oscura peaks, NM. Simultaneous path-averaged refractive index structure parameter (C_n²) measurements from the CCA and the scintillometer show good agreement, with deviations apparently due to localized effects of underlying topography and metrology. Statistics from both data sets are presented in the form of histograms and cumulative distribution functions. CCA C_n² point measurements are compared to underlying surface topography. We discuss possible effects of instruments anomalies, analysis methods, and atmospheric velocity fluctuation levels. We present conclusions and made recommendations for future similar experimental efforts.

Citation Download Citation

Scott R. Nowlin, Ila L. Hahn, Ronald J. Hugo, and Kenneth P. Bishop "Concurrent aerial and ground-based optical turbulence measurements along a long elevated path", Proc. SPIE 3706, Airborne Laser Advanced Technology II, (3 August 1999); https://doi.org/10.1117/12.356980

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