Nonlinear Processes in Oceanic and Atmospheric Flows


Dynamical response characteristics of the Turkish Straits and Black Sea system

Author: Emin Ozsoy, Prof., Institute of Marine Sciences, METU.

Names and affiliation of other authors:

Oral or poster: Oral presentation

The Turkish Straits System consists of the Dardanelles and Bosphorus Straits and the Marmara Sea, connecting the Aegean Sea to the Black Sea. This coupled system responds to hydro-meteorological forcing at a wide range of time and space scales. The response is determined by the geometrical characteristics of the interconnected basins, and the connecting channels, where hydraulic controls, separated plumes and jets, bottom and interfacial friction, mixing, and inertial effects all play significant roles. Because the flow has layered stratification, the response also depends on complex internal dynamics, which can not be parameterized with ease. Further, the individual responses of the coupled basins under the action of the hydrometeorological forcing also influence the outcome.
Applications of a series of simple models are discussed to characterize scale dependent behaviour of the coupled system. Observations are then used to interpret model results. Other results from ongoing high resolution model studies of strait flows are reported to compare observations with predictions, as well to provide guidance for further studies. Application to problems of transport of passive substances as well as to biogeochemical reactions are also discussed.

*Satellite images from NASA and ESA

Nonlinear Processes in Oceanic and Atmospheric Flows. July 2-4, 2008. Castro Urdiales, Cantabria, Spain.