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Under the circumstance of earth observation data booming, it is important to develop an intelligent and automatic processing method for the geospatial data. Currently the OGC web services standard offer unique interfaces for the geospatial data planning, accessing, processing and publishing. This paper focuses on the Web processing model building and implementing — how to organize the distributed...
This paper introduces the application of web 3D GIS (Geographic information system) for dam-break flood modeling, including dynamic 3D visualization and spatio-temporal analysis. Distributed virtual scene modeling method was firstly introduced. Then the system framework was proposed. Meantime some key technologies including the collaborative workflow, mobile agent computing service and simulation...
Recent advances in Cloud Computing technologies bring a new computing information infrastructure to public users. Using these Cloud Computing platforms, typical information technology resources such as computing, storage utilities, and database are available as services. Geospatial applications often involve diverse sources of data and complex geoprocessing functions. In scientific problem solving,...
Crop growth stage is important information for decision making in many related agricultural sectors. In-time accurate estimation of crop growth stage is desired. Kernel-fitting of time series vegetation indices have shown potential in estimating crop growth stage while tolerant to noisy data and missing data. The challenge to apply such models is dealing with current year when incomplete data are...
In the geospatial domain, the Open Geospatial Consortium (OGC) has recently released two new web service interface specifications designed to enable spatial data provision, calculations and modeling on the Internet. These specifications are known as the Web Processing Service (WPS) and Table Joining Service (TJS). A WPS can be used to enable access to any sort of calculation or model, although it...
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