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Proceedings Paper

Analysis of temporal dynamics of the standard deviation of three wind velocity components from the data of acoustic sounding
Author(s): O. F. Kapegesheva; N. P. Krasnenko; M. V. Tarasenkov; L. G. Shamanaeva
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Paper Abstract

In the report the spatiotemporal dynamics of standard deviation of three wind velocity components measured with a minisodar in the atmosphere boundary layer is analyzed. During 5-day measurements, the variance changed for the x- and y-components of the wind velocity from 1 to 12 m/s, and for the z-component from 0.2 to 0.4 m/s in the morning hours and in the evening from 2 to 10 m/s for the x- and y-components and from 0.6 to 0.9 m/s for the z-component. An analysis of the vertical profiles of the standard deviations of the three wind velocity components demonstrates that the increase of σx and σy with altitude is well described by a power-law dependence with the exponent changing from 0.22 to 1.3 depending on time of a day, and σz increases by a linear law. Approximation constants are found and errors of their application are estimated. The established physical regularities and the approximation constants obtained allow the diurnal dynamics to be described and can be recommended for application in the ABL models.

Paper Details

Date Published: 29 November 2016
PDF: 6 pages
Proc. SPIE 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 100356Y (29 November 2016); doi: 10.1117/12.2249272
Show Author Affiliations
O. F. Kapegesheva, National Research Tomsk State Univ. (Russian Federation)
N. P. Krasnenko, Institute of Monitoring of Climatic and Ecological Systems (Russian Federation)
Tomsk State Univ. of Control Systems and Radioelectronics (Russian Federation)
M. V. Tarasenkov, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
L. G. Shamanaeva, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)


Published in SPIE Proceedings Vol. 10035:
22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Gennadii G. Matvienko; Oleg A. Romanovskii, Editor(s)

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