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Papers by Chunchuzov Chunchuzov
The Journal of the Acoustical Society of America, 2008
The Journal of the Acoustical Society of America, 2008
CITATIONS 0 READS 32 6 authors, including: Some of the authors of this publication are also worki... more CITATIONS 0 READS 32 6 authors, including: Some of the authors of this publication are also working on these related projects: The study of the influence of nonlinear effects on shaping of the anisotropic fluctuations in the atmosphere using infrasound probing. View project Research Fellow in the project Dynamics-aerosol-chemistry-cloud interactions in West Africa (DACCIWA), this is studying the West African monsoon with the numerical weather prediction model ICON View project Abstract. The results of acoustic tomographic monitoring of the coherent structures in the lower atmosphere and the effects of these structures on the acoustic signal parameters (travel time, duration and direction of propagation) are analyzed in this paper. From the measurements of acoustic travel time fluctuations (periods 1 min-1 h) with a net of distanced receivers, the temporal fluctuations of the effective sound speed, which are mostly caused by the wind speed fluctuations, are retrieved along different ray paths connecting pulsed sources and receivers. By using a coherence analysis of the fluctuations near spatially distanced ray turning points, the internal wave-associated fluctuations are filtered and their spatial characteristics (coherences, horizontal translation velocities and spatial scales) are obtained. The variances of the measured fluctuations of the acoustic pulse travel time and the direction of propagation are compared with those calculated from a model of sound propagation through a random internal wave field. A capability of the acoustic tomography in estimating wind shears in different spatial regions of the ABL is shown.
The Journal of the Acoustical Society of America, 2008
The Journal of the Acoustical Society of America, 2008
CITATIONS 0 READS 32 6 authors, including: Some of the authors of this publication are also worki... more CITATIONS 0 READS 32 6 authors, including: Some of the authors of this publication are also working on these related projects: The study of the influence of nonlinear effects on shaping of the anisotropic fluctuations in the atmosphere using infrasound probing. View project Research Fellow in the project Dynamics-aerosol-chemistry-cloud interactions in West Africa (DACCIWA), this is studying the West African monsoon with the numerical weather prediction model ICON View project Abstract. The results of acoustic tomographic monitoring of the coherent structures in the lower atmosphere and the effects of these structures on the acoustic signal parameters (travel time, duration and direction of propagation) are analyzed in this paper. From the measurements of acoustic travel time fluctuations (periods 1 min-1 h) with a net of distanced receivers, the temporal fluctuations of the effective sound speed, which are mostly caused by the wind speed fluctuations, are retrieved along different ray paths connecting pulsed sources and receivers. By using a coherence analysis of the fluctuations near spatially distanced ray turning points, the internal wave-associated fluctuations are filtered and their spatial characteristics (coherences, horizontal translation velocities and spatial scales) are obtained. The variances of the measured fluctuations of the acoustic pulse travel time and the direction of propagation are compared with those calculated from a model of sound propagation through a random internal wave field. A capability of the acoustic tomography in estimating wind shears in different spatial regions of the ABL is shown.