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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/gmd-2019-163
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2019-163
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: model description paper 30 Aug 2019

Submitted as: model description paper | 30 Aug 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

A Model of Black Sea Circulation with Strait Exchange (2008–2018)

Murat Gunduz1, Emin Özsoy2,3, and Robinson Hordoir4,5 Murat Gunduz et al.
  • 1Institute of Marine Sciences and Technology, Dokuz Eylül University, ̇Izmir, Turkey
  • 2Institute of Marine Sciences, Middle East Technical University, Erdemli, Mersin, Turkey
  • 3Eurasia Earth Science Institute, ̇Istanbul Technical University, ̇Istanbul, Turkey
  • 4Institute of Marine Research, Bergen, Norway
  • 5Bjerknes Centre for Climate Research, Bergen, Norway

Abstract. The Bosphorus exchange is of critical importance for hydrodynamics of the Black Sea. In this study, we report on the development of a medium resolution circulation model of the Black Sea, making use of up-to-date topography, atmospheric forcing with high space and time resolution, climatic river fluxes and strait exchange enabled by adding the Bosphorus Strait with an artificial box on the Marmara Sea side. Particular attention is given to circulation, mixing, convective water mass formation processes compared with observations. The present formulation with temperature and salinity relaxed to the observed seasonal climatology of the Marmara box and open boundary conditions are found to enable Bosphorus exchange with upper, lower layer and net fluxes comparable to the observed range. This in turn enables to capture the trend of rapid climatic change observed in the Black Sea in the last decade.

Murat Gunduz et al.
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Murat Gunduz et al.
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