| Along with the human search for and utilize marine resources,at the same time, sea accidents occur constantly.As an important component of modern maritime security planning,more and more people concern about maritime search and rescue.The sea search and rescue tasks arising there from are increasingly heavy.The aim of Maritime search and rescue simulation system is to achieve maritime search and rescue simulation training scientifically and effectively,enhance the level of maritime search and rescue capacity.Throughout the search and rescue simulation system,it is necessary to produce marine weather information real-time,to set down the overall search and rescue program based on meteorological information when disaster happened.In the search process,to adjust the flight plan and determine the search and rescue region should be based on real-time weather information.Therefore,as a necessary information resources,the authenticity of weather simulation will directly affect the search and rescue operations.In other words,it will impact on the whole viability of maritime search and rescue simulation system and the value of its existence.This paper is based on the study of Tianjin maritime search and rescue pre-arranged planning,take the maritime search and rescue simulation training as the background.Mainly study on meteorological model simulation and visualization and meteorological background sound,the two aspects in search and rescue simulation system.Firstly,combined with meteorological statistical analysis and probability theory, analysis the characteristics of historical meteorological data of Bohai Wan,to establish the meteorological simulation occurrence model,and realize the stochastic simulation of computer model.Secondly,consulting the related literature of particle system conception,using the data structure of particle systems to achieve the effect of rain King visualization,to make a more realistic simulation.Paper also proposed the method of the hierarchical modeling to realize visualization,do the preparation for realizing visualization of meteorological information in the system.Finally,Paper also study on the background audio processing technology in the simulation system prototype.Realized the background sound playback,strong or weak control,the background overlay features.Enhanced the simulation results effectively. In this paper,the study on meteorological simulation model not only has a certain research value,explores the visualization of meteorological model,but also the method of the hierarchical modeling has practical outlook.The explorations and applications of background audio processing technology enhance the effectiveness of simulation greatly,also they have great significance on the success of the entire simulation system. |