Software for data visualization in the system of real-time satellite monitoring

Abstract

Methods for creating multi-layered mapping representation for the real-time satellite monitoring systems, based on web-GIS technologies, are considered. The generated map can contain a set of raster and vector thematic layers of spatial data, additional information layers of images from below (a basic map - a substrate) and from above (a layer of labels) of user’s thematic data. The client software provides interactivity of the created maps in a standard web browser. The configuration of the data presentation provides the ability to select spatial data format according to the client (vector or raster), control various display options (interactive legend, list of fields displayed in attribute tables). It also provides application of custom templates to display table information on layer objects, arrangement of data access rights - from opportunities to visualize a layer or map through a web browser to providing direct access to them through standard mapping WMS/WFS web services, web-based editing, or shape-file downloads. An integral part of thematic web maps, based on the geo-portal, is a customized rasterization and data caching service that provides a noticeable performance increase for "heavy" multi-layer maps. A set of mapping substrates, such as schematic maps, satellite images mosaics, digital terrain models, spatial data of outside web services are a good addition to maps on geoportal.