Design And Implementation Of Visualization Platform Base On Massive InSAR Geological Monitoring Data

With the development of science and technology,space earth observation technology is more and more widely used in surface deformation monitoring.Interferometric synthetic aperture radar imaging technology has many advantages such as high image resolution,large monitoring range,and little influence by the atmosphere.It has become the main means of monitoring geological subsidence and deformation.However,there are many problems and deficiencies in the visual expression of interferometric synthetic aperture radar monitoring results in engineering applications,such as the huge amount of data and the complex amount of information,which usually requires the help of data visualization products to assist the analysis.Traditional geological monitoring data visualization products have certain requirements on hardware and software,and lack good multi-terminal adaptability and cross-platform.Nowadays,people usually hope that the multi-dimensional and massive data can be presented in a more intuitive way,which not only makes the data clear and intuitive to read,but also reduces a lot of unnecessary burdens for analysts.With the gradual popularization of mobile smart devices,web-based browser applications have become the mainstream today due to their superior performance and convenient usage scenarios.In order to solve these problems,this paper combines the actual situation of InSAR technology in the engineering application of geological disasters and subsidence,studies the visualization method of massive geological monitoring data according to the characteristics of InSAR geological monitoring data and builds a high-performance web-based visualization platform based on massive InSAR geological monitoring data.The settlement deformation visualization method proposed in the platform includes a geographic coordinate system conversion method that can convert the original coordinate system of monitoring data into a coordinate system suitable for Web map engines,and combine with Canvas drawing method to generate settlement deformation visualization layer and render it in the map.This method is different from the traditional settlement deformation visualization method,not only has high rendering performance,but also has the high adaptability and cross-platform of Web applications.And supports platform realizes the diversified data visualization and display of massive InSAR geological monitoring data.This platform could provide functions such as auxiliary analysis and decision-making functions for researchers in the field of geology-related research,and plays an active role in geological subsidence monitoring,urban disaster warning and urban engineering planning.