Influence of the averaging time on the quality of reconstruction of small-scale wind turbulence characteristics in acoustic sounding

Kapegesheva, O. F.; Krasnenko, N. P.; Stafeev, P. G.; Shamanaeva, L. G.

doi:10.1007/s11182-013-9933-7

Cited by 3 publications

(2 citation statements)

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“…Sodars or acoustic radars are widely used all over the world to investigate the structure and dynamics of the atmospheric boundary layer (ABL) [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The principle of their operation is based on the effect of sound scattering by small-scale turbulent inhomogeneities of the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

“…Sodars typically measure the characteristics of the atmosphere at altitudes from several meters to several hundred meters. In the present paper, works of authors [12][13][14][15][16][17][18] are generalized, and the possibility of sodar application for simultaneous comprehensive measurements of the vertical profiles of turbulence characteristics is demonstrated. To analyze the random wind velocity field in the atmosphere, the structure functions -the average differences of the squared wind velocity components at two points  are used.…”

Section: Introductionmentioning

confidence: 99%

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Sodars and their application for investigation of the turbulent structure of the lower atmosphere

Krasnenko

Shamanaeva

2016

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. Possibilities of sodar application for investigation of the spatiotemporal dynamics of three components of wind velocity vector, longitudinal and transverse structural functions of wind velocity field, structural characteristics of temperature and wind velocity, turbulent kinetic energy dissipation rate, and outer scales of temperature and dynamic turbulence in the atmospheric boundary layer are analyzed. The original closed iterative algorithm of sodar data processing taking into account the classical and molecular absorption and the turbulent sound attenuation on the propagation path is used that allows the vertical profiles of the characteristics of temperature and wind velocity field to be reconstructed simultaneously and their interrelations to be investigated. It is demonstrated how the structure of temperature and wind turbulence is visualised in real time.

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