Target Prediction Based On Local Meteorological Equation And Its Visualization Research

In the field of meteorological prediction research,the movement of atmospheric clouds can be predicted by calculating the basic equations of wet atmosphere,but in practical applications,the basic equations of wet atmosphere contain many parameters,the calculation is much complicated,which is not conducive to practical application.In view of the above problems,this thesis first describes the initial boundary value problem of the wet atmosphere basic equations and some qualitative results of the solutions,and then gives the existence theorem of the solution of the wet atmosphere basic equations.Then,the local terrain and climate characteristics of Yunnan Province are used to simplify the equations,the local meteorological equations are established,and the computational scheme of simplified local meteorological equations on the boundary is given.In order to obtain the slice data required for the three-dimensional visualization of meteorological targets,this thesis uses a trilinear interpolation method to interpolate the original meteorological radar data.Then,this thesis uses the Marching Cubes algorithm to initially reconstruct the meteorological target,and uses the double Laplacian algorithm to smooth the surface of the initially reconstructed meteorological target,and then uses the triangular mesh simplify algorithm based on vertex deletion to simplifies the preliminary reconstructed triangular grid data,which improves the rendering quality and efficiency of meteorological targets.Then,in this thesis,the texture reflection method is used to draw the echo reflection intensity of the surface of the meteorological target.Finally,combined with the local geographic information,using the radar base station as the geographic center,the three-dimensional visualization of the local meteorological target is completed on the local map.Finally,considering the application of visualization methods in target prediction based on meteorological equations,this thesis first calculates the unknown parameters in the computational scheme of the simplified local meteorological equations on the boundary based on the knowledge of atmospheric dynamics and fluid mechanics,and then convert the calculation results of the computational scheme into radar reflectivity factor values.According to the converted data,this thesis accomplished three-dimensional visualization of the forecast results of meteorological targets.Finally,this thesis verifies the validity of the three-dimensional visualization prediction results through experiments.The experimental results show that the prediction results obtained by using the target prediction method based on the local meteorological equations established in this thesis are of reference value within about 5 hours.