Meteorological Visualization System In Web-based Realization

In the Numerical weather Pridiction,large-scale scientific data will be generated. With rapid developments of the internet,spreading meteorologic information on the internet and interactive collaboration with the internet has become popular. So,web-based visualization turns out to be an important field of meteorologic visualization. This paper addresses the four reference model of Meteorologic Visualization System(MVS) and has implemented the basic modules of MVS.The kernel of Scientific Visualization is the Visualization of three-Dimension data field. The data field of Meterologic application is the multi-timestep,multi-variable 3D space dataset. The visualization methods of 3D data-field includes:the visualization methods of 2D datasets,the visualization methods with the 3D graphics elements,the direct volume rendering of datasets. These algorithms are introduced in this paper and realized in the Meterologic Visualization System of WebMVS.In the realization of web-based MVS,it is of great importance to solve the problem of access to remote object. Java Remote Method Invocation which is the combination of Corba and Java is adopted in this paper. RMI provides a mechanism of communication and message passing between client and server. The mechanism is fulfilled with the reuse of executable code. The code has customized system behavior and interface criterion. So,the mechanism is different from the traditional client/server model.