## Abstract In the shallow groundwater areas of the North China Plain (NCP), precipitation infiltration and evapotranspiration in the vertical direction are the main processes of the water cycle, in which the unsaturated zone plays an important role in the transformation process between precipitati
AN OSCILLATION PHENOMENON OF REVERBERATION IN THE SHALLOW WATER WITH A THERMOCLINE
โ Scribed by F. LI; G. JIN; R. ZHANG; J. LIU; L. GUO
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 257 KB
- Volume
- 252
- Category
- Article
- ISSN
- 0022-460X
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โฆ Synopsis
An oscillation phenomenon of the reverberation intensity was observed in a recent shallow water reverberation experiment. This phenomenon cannot be explained by the widely used incoherent reverberation theory. In this paper, to explain the observed oscillation phenomenon, the modal interference of reverberation in the shallow water with a thermocline is discussed on the basis of the ray-mode theory. The theoretical analysis and numerical results show that modal interference can cause the regular oscillation phenomenon of the reverberation intensity, and the oscillation phenomenon of the reverberation intensity can be used to test di!erent reverberation models.
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