Abstract
Conceptual, as well as operational, aspects need to be taken into account when developing an integrated modelling framework. A set of achievable requirements has been identified which are used to realise a solution that is applied to the modelling of ephemeral flood channels. The solution described provides: (1) a common data repository within which all model run details, scientific data sets and output results reside; (2) the ability to interactively visualise and select suitable data sets from the data repository to configure the model; (3) an interface for mediating the flow of information between model and other applications; and (4) the possibility to allow model functionality and associated data to be made available to the wider scientific community. This is achieved using an object‐oriented approach within the Research System Inc. Interactive Data Language (IDL) and the adoption of National Center for Supercomputer Application's HDF as a common file format for modelling scenarios. The paper outlines the development of a class library, EM_HDF, for mediating and facilitating data exchange between the model and its HDF data repository. The developed system is designed to be applicable to a wide range of modelling applications beyond the fluvial model described.
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