Removal of gaseous mercury in natural gas by silver–doped support materials

Abstract

This work addresses the problem on lack of supported tool for visualizing temporal geographic data on web mapping applications. While spatial data can be structured as a data pyramid and selectively visualized using the zoom control on a web map viewer, temporal property of the data may be supported with a basic timeline control without data selection capability. Therefore, a large amount of dynamic data over a long period of time can clutter the screen. The proposed solution is to apply the multi-resolution technique for visualizing spatial data onto temporal data. That is to create a data pyramid based on the time-scale instead of the altitude-level and map-viewer software with a timeline control interface that is zoom-able to different time-scales. A prototype system is implemented as a web mapping application with a specialized timeline control that interacts with the database containing the spatial-temporal data pyramid.