Natural disasters constantly threaten the safety of our infrastructures including dams. The potential damages associated with dams usually stem from the failure of the structure due to overtopping, seepage water flow, and deformation. Therefore, the implementation of monitoring techniques is essential in detecting any potential damage in an early stage. In creating such monitoring systems, the Open Geospatial Consortium (OGC) Sensor Web Enablement (SWE) suite of specifications enable the gathering of real time information from heterogeneous sources by introducing a standard interface for time series. Although many researchers has implemented SWE based monitoring systems, there has been little work in combining the Sensor Observation Services and the Web Processing Services (WPS) with 3D visualization methods. Thanks to the recent advancement in WebGL and HTML5 this research uses the WebGL-based frameworks such as Three.js and Cesium Virtual Globe JavaScript Libraries to create 3D models on the browser without a need for any plug-ins. Moreover, this research mainly focuses on developing a framework for visualization of dynamic data acquired from web services such as sensor observation services and Web Processing Services. This framework will help Cesium’s virtual globe access and visualize the dam model and the sensor water levels from the Sensor Observation Services. It also visualizes the dynamic height observation data and the interpolated water body acquired through Web Processing Services in a web-based application. In addition, the application will provide a further analysis tool in the form of charts that would allow in-depth examination of changes in height values.     «

Natural disasters constantly threaten the safety of our infrastructures including dams. The potential damages associated with dams usually stem from the failure of the structure due to overtopping, seepage water flow, and deformation. Therefore, the implementation of monitoring techniques is essential in detecting any potential damage in an early stage. In creating such monitoring systems, the Open Geospatial Consortium (OGC) Sensor Web Enablement (SWE) suite of specifications enable the gatheri...     »