The Intermittence Of Atmospheric Turbulence And Its Effects On Wave Propagation

Zeng Zongyong

doi:10.1117/12.960806

20 September 1989 The Intermittence Of Atmospheric Turbulence And Its Effects On Wave Propagation

Zeng Zongyong

Proceedings Volume 1114, Active Telescope Systems; (1989) https://doi.org/10.1117/12.960806
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

A kind of intermittent turbulent flows which was observed using a hot wire anemometer and a platinum wire thermometer on tower in Beijing at night has been introduced . This turbulence flow produced by wind shear in the stable stratified flow is consist of some individual or a crowdof cold eddies .The temperature spectral power law of this turbulence lies between -2 and -5/3 so that the C_m value measured by various methods which correlate with scale size of eddies would be different.The mathematical representation of intermittent turbulent flows in the atmosphere was developed. The abrupt variance of temperature at the surface of cold eddies may cause a reflection of radio wave or sound wave , therefore the value of C_m measured by various methods such as radar,scintillometer,thermometer, would be different.

Citation Download Citation

Zeng Zongyong "The Intermittence Of Atmospheric Turbulence And Its Effects On Wave Propagation", Proc. SPIE 1114, Active Telescope Systems, (20 September 1989); https://doi.org/10.1117/12.960806

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