Collaborative migration, coupling and simulation of water resources models through OpenMI

The present study describes the migration and coupling of a monthly conceptual rainfall runoff model named UTHBAL and a water reservoir operation model called UTHRL into the OpenMI standard. The models have been introduced by Loukas et al. [1, 2]. We have developed a collaborative decision support framework named UTH-MODELER which automates the migration of the two models into OpenMI. This framework synchronizes spatially and temporarily the two models into a collaborative simultaneous simulation. The produced software allows time series input in various formats and model extensibility. Furthermore, an optimization library for the calibration of the models has been incorporated. The experimental verification of the coupled system has been tested for the case study of the reservoir of the restored Lake Karla in Thessally Greece. The results show that the collaboration process is bounded by the time, space and optimization characteristics of the coupled models. © 2010 IEEE