Document Type


Publication Date



For water management questions on the national scale, cross-border studies or for water authorities it can be necessary to couple models of the same type, i. e. models that represent the same flow processes, but different modelling areas, at shared boundaries. With the help of a simple test case how two open channel flow models (Sobek) can be coupled externally or iteratively according to the OpenMI standard. We discuss the simulation results from external coupling and iterative coupling against the simultaneous solution in one equation system. Conclusions on the choice of a coupling method for practical applications are made and technical recommendations are given.


Session R11, Coupling and Integration of Hydrologic Models I


To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.