On backward scattering of acoustic waves in a turbulent atmosphere and intensity of SODAR echo-signals
The backscattering of acoustic waves in the atmosphere has been studied with an absolutely calibrated sodar and a measuring complex at a 300-m meteorological mast (HMM). It has been shown that the backward differential cross-section of the atmosphere and excess attenuation of sound are by an order o...
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| Format: | Article |
| Language: | English |
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Borntraeger
2007-08-01
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| Series: | Meteorologische Zeitschrift |
| Online Access: | http://dx.doi.org/10.1127/0941-2948/2007/0229 |
| Summary: | The backscattering of acoustic waves in the atmosphere has been studied with an absolutely calibrated sodar and a measuring complex at a 300-m meteorological mast (HMM). It has been shown that the backward differential cross-section of the atmosphere and excess attenuation of sound are by an order of magnitude greater than formerly recognized. The effects have been qualitatively justified on the basis of consideration of the small-scale turbulence intermittence and a model of sound scattering on the ensemble of local inhomogeneities. |
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| ISSN: | 0941-2948 |