Abstract
Integrated environmental modelling (IEM) couples environmental models, geoprocessing algorithms, and data together to solve complex environmental problems. There are two prominent modelling frameworks for IEM: component-based and service-oriented frameworks. The former one has been widely employed in local computer environments, and has its advantage in having concrete and community-wide tools. The latter one can take advantage of Web technologies for integrating distributed environmental models. However, the complex interaction between environmental models such as time marching models is still a challenge for integrating models on the Web. This paper suggests to take the best of both frameworks. Models are shared on the Web as WebSocket services. A hybrid approach to leverage OpenMI and WebSocket for coupling components and services is proposed to provide a flexible IEM environment. The result illustrates the applicability of the approach and demonstrates the advantage of WebSocket over the traditional HTTP approach in model execution.
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