| Abstract: | Based on the similarity theory of the ocean atmosphere and the one-dimensional Kolmogorov spectral function, the evaporation duct model considering the isotropic and anisotropic turbulence effects is established. Based on the relative error theory, the modified atmospheric refractivity calculated by numerical simulation is compared with the modified atmospheric refractivity calculated from the experimental data. The results show that the turbulence effects have an influence on the prediction results of the evaporation duct model, and the prediction accuracy of the evaporation duct model considering the anisotropic turbulence effect is higher. Therefore, it is necessary to consider the influence of anisotropic turbulence on the atmospheric refractive index, so as to obtain a more accurate atmospheric modified refractive index profile when building the evaporation duct model. By introducing anisotropic atmospheric turbulence theory, the applicability of the evaporative waveguide model can be improved effectively, which provides a good model basis for the subsequent atmospheric waveguide inversion. |
