Bottom rough surface scattering is the dominating source of low to mid frequency reverberation in shallow water. It is difficult to test the traditional full wave reverberation model using experiment data because many environmental parameters in the model are not easy to get. A three parameters model of shallow water waveguide reverberation based on full wave reverberation model was proposed. The three unknown environmental parameters in the new model include: bottom reflection attenuation parameter P, bottom reflection phase parameter Q, and bottom backscattering parameter μ. These parameters can be measured or inversed easily, and have clear physical pictures. This new practical shallow water reverberation model was compared with the Yellow Sea low frequency reverberation experiment data. The results show that the new proposed model can explain low frequency shallow water reverberation well.
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