Vol. 30, issue 08, article # 4

Afanas'ev A.L., Banakh V.A., Marakasov D.A. Comparative estimates of the transversal wind velocity component from optical and acoustic measurements in the surface air layer. // Optika Atmosfery i Okeana. 2017. V. 30. No. 08. P. 651–657 [in Russian].
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Abstract:

A passive optical method for measurement of the crosswind velocity averaged over an atmospheric path is developed. The crosswind velocity estimation is based on the correlation algorithm operating with the shifts of energy centroids of images of topographic objects under natural daylight. Testing results of a measurer prototype based on this algorithm are discribed. The wind velocity estimates recorded by passive optical measurer and acoustic weather station are compared. The optimal duration for averaging the mutual correlation function providing the stability of real-time wind measurements is estimated.

Keywords:

non-coherent source, image correlation, path-averaged wind velocity, passive optical measurer, acoustic anemometer, turbulence

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