Coupling watersheds, estuaries and regional ocean through numerical modelling for Western Iberia: a novel methodology
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An original methodology for integrating the water cycle from the rain water to the open ocean by numerical models was set up using an offline coupling technique. The different components of the water continuum, including watersheds, estuaries and ocean, for Western Iberia were reproduced using numerical components of the MOHID Water Modelling System (http://www.mohid.com). This set of models, when combined through this novel methodology, is able to fill information gaps, and to include, in a realistic mode, the fresh water inputs in terms of volume and composition, into a regional ocean model. The designed methodology is illustrated using the Tagus River, estuary and its region of fresh water influence as case study, and its performance is evaluated by means of river flow and salinity observations.
KeywordsWestern Iberia Numerical modelling MOHID Watershed River Estuary PCOMS Tagus ROFI Regional ocean model Offline coupling
This research was supported by the EMoSEM project, a two-year project (2013–2014) funded by the French National Research Agency (ANR) and the Belgian Science Policy (BELSPO) in the frame of EU FP7 ERA-NET Seas-era. River flow data were provided by the Portuguese National Institute of Water (INAG) through their portal SNIRH (http://www.snirh.pt). The authors are grateful to the water utility company SIMTEJO for providing the salinity data from its coastal buoy. The authors would like to thank the anonymous reviewers for their valuable comments and suggestions to improve the quality of the current manuscript.
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