Research And Implementation Of Meteorological Spatiotemporal Data Visualization

With the development of the times,the technology of the computer is more advanced.At the same time,the progress of the data observation and acquisition instrument can generate a large amount of meteorological data.The meteorological data are spatiotemporal.With the influence of meteorological and hydrological information on daily life and business has attracted more and more attention,it has become an urgent demand in the application system to provide environmental information of meteorological and hydrological perception,but also in order to analyze the meteorological environment better,more fully and intuitively show the meteorological and hydrological information put forward higher requirements for meteorological information visualization.In the past,static data display at single level and single time can not fully reflect the characteristics of emporal continuity of meteorological data,and weather charts and other professional oriented ways are also difficult to be accepted by ordinary users.Based on existing meteorological visualization technology,based on analyzing and summarizing the existing basic theories and methods of meteorological visualization,this paper studies and implements the dynamic rendering technologies and methods based on current meteorological visualization technology.The intermediate display process is constructed in a variety of ways,so achieve the display effect in the balance of precision and dynamic.First,the existing meteorological data are analyzed,and the nearest feature selection is used to find the corresponding feature points in each area.Then the corresponding eigenfunction is obtained by the spline interpolation method.Through this feature function and the existing meteorological data,the intermediate matrix is constructed by the Morphing method,and the accuracy is evaluated by the challenge of the ratio coefficient.At the same time,the multi-threaded technology and wavelet transform are used to optimize the matrix,so achieve the goal.Based on the existing meteorological visualization technology and the above methods,the paper realizes the dynamic transformation of the contour field and the color field(other meteorological fields can be considered).The two methods of meteorological dynamic visualization are based on existing visualization schemes,which operate on data and realize the dynamic visualization of meteorological temporal data.