The upper air weather forecast data used in current business and research and digital data of the recently finished upper air meteorological monthly report were comparatively analyzed in complete data and quality cond...The upper air weather forecast data used in current business and research and digital data of the recently finished upper air meteorological monthly report were comparatively analyzed in complete data and quality condition of data, and sounding curve change caused by the difference of complete data was also compared, which evaluated advantages and disadvantages of two types of data.展开更多
In this paper, we can struct the elementary solution of ultra-hyperbolic equation with constant coeffi-cient by the characteristic conoid. By using the fundmental formula and the elementary solution analyse theform of...In this paper, we can struct the elementary solution of ultra-hyperbolic equation with constant coeffi-cient by the characteristic conoid. By using the fundmental formula and the elementary solution analyse theform of its solution and give an explicit formula of the solution at the vertex of the characteristic conoid.Finally, we discuss the necessary condition for the initial value problem. This method can be used in the ul-tra-hyperbolic equation with the problem varible coefficient,1 The Elementary SolutionConsider equation,展开更多
基金Supported by National Natural Science Foundation(40705025)~~
文摘The upper air weather forecast data used in current business and research and digital data of the recently finished upper air meteorological monthly report were comparatively analyzed in complete data and quality condition of data, and sounding curve change caused by the difference of complete data was also compared, which evaluated advantages and disadvantages of two types of data.
文摘In this paper, we can struct the elementary solution of ultra-hyperbolic equation with constant coeffi-cient by the characteristic conoid. By using the fundmental formula and the elementary solution analyse theform of its solution and give an explicit formula of the solution at the vertex of the characteristic conoid.Finally, we discuss the necessary condition for the initial value problem. This method can be used in the ul-tra-hyperbolic equation with the problem varible coefficient,1 The Elementary SolutionConsider equation,