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The Effect of Various Vertical Discretization Schemes and Horizontal Diffusion Parameterisation on the Performance of a 3-d Ocean Model: the Black Sea Case Study : Volume 9, Issue 6 (22/11/2012)

By Shapiro, G.

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Book Id: WPLBN0003984272
Format Type: PDF Article :
File Size: Pages 29
Reproduction Date: 2015

Title: The Effect of Various Vertical Discretization Schemes and Horizontal Diffusion Parameterisation on the Performance of a 3-d Ocean Model: the Black Sea Case Study : Volume 9, Issue 6 (22/11/2012)  
Author: Shapiro, G.
Volume: Vol. 9, Issue 6
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Luneva, M., Pickering, J., Storkey, D., & Shapiro, G. (2012). The Effect of Various Vertical Discretization Schemes and Horizontal Diffusion Parameterisation on the Performance of a 3-d Ocean Model: the Black Sea Case Study : Volume 9, Issue 6 (22/11/2012). Retrieved from http://worldebookfair.org/


Description
Description: University of Plymouth, UK. Results of a sensitivity study are presented from various configurations of the NEMO ocean model in the Black Sea. The standard choices of vertical discretization, viz. z-levels, s-coordinates and enveloped s-coordinates, all show their limitations in the areas of complex topography. Two new hydrid vertical coordinate schemes are presented: the s-on-top-of-z and its enveloped version. The hybrid grids use s-coordinates or enveloped s-coordinates in the upper layer, from the sea surface to the depth of the shelf break, and z-coordinates are set below this level. The study is carried out for a number of idealised and real world settings. The hybrid schemes help reduce errors generated by the standard schemes in the areas of steep topography. Results of sensitivity tests with various horizontal diffusion formulations show that the mesoscale activity is better captured with a significantly smaller value of Smagorinsky viscosity coefficient than it was previously suggested.

Summary
The effect of various vertical discretization schemes and horizontal diffusion parameterisation on the performance of a 3-D ocean model: the Black Sea case study

Excerpt
Becker, E. and Burkhard, U.: Nonlinear Horizontal Diffusion for GCMs, Mon. Weather Rev., 135, 1439–1454, 2007.; Berntsen, J., Xing, J., and Davies, A. M.: Numerical studies of flow over a sill: sensitivity of the non-hydrostatic effects to the grid size, Ocean Dynam., 59, 1043–1059, 2010.; Besiktepe, S. T., Ünlüata, Ü., and Bologa, A. S. E.: Environmental Degradation of the Black Sea: Challenges and Remedies, Proceedings of the NATO Advanced Research Workshop, Constanta-Mamaia, Romania, 6–10 Oct 1997, Series: Nato Science Partnership Subseries: 2, vol. 56, 1997.; Blumberg, A. F. and Mellor, G. L.: Diagnostic and prognostic numerical circulation studies of the South Atlantic Bight, J. Geophys. Res., 88, 4579–4592, 1983.; Bryan, K.: A numerical investigation of a nonlinear model of a wind-driven ocean, J. Atmos. Sci., 20, 594–606, 1963.; Charney, J. R., Fjörtoft, R., and von Neumann, J.: Numerical Integration of the Barotropic Vorticity Equation, Tellus, 2, 237–254, 1950.; Demyshev, S. G., Korotaev, G. K., and Knysh, V. V.: Evolution of the cold intermediate layer in the Black Sea according to the results of assimilation of climatic data in the model, Phys. Oceanogr., 12, 173–190, 2002.; ETOPO2v2: Global Gridded 2-minute Database, available at: http://www.ngdc.noaa.gov/mgg/global/etopo2.html, 2006.; Ezer, T. and Mellor, G. L.: A generalized coordinate ocean model and comparison of the bottom boundary layer dynamics in terrain following and z-level grids, Ocean Modell., 6, 379–403, 2004.; Ezer, T., Arango, H., and Shchepetkin, A. F.: Developments in terrain-following ocean models: intercomparisons of numerical aspects, Ocean Modell., 4, 249–267, 2002.; GODAE: The Global Ocean Data Assimilation Experiment, available at: http://www.godae.org/Intermet.html, 2008.; Grégoire, M. and Beckers, J. M.: Modeling the nitrogen fluxes in the Black Sea using a 3D coupledhydrodynamical-biogeochemical model: transport versus biogeochemicalprocesses, exchanges across the shelf break and comparison of the shelf anddeep sea ecodynamics, Biogeosciences, 1, 33–61, doi:10.5194/bg-1-33-2004, 2004.; Griffies, S. M. and Hallberg, R. W.: Biharmonic friction with a Smagorinsky-like viscosity for use in Large-Scale-Eddy-Permitting models, Mon. Weather Rev., 128, 2935–2946, 2000.; Huthnance, J. M.: Circulation, exchange and water masses at the ocean margin: the role of physical processes at the shelf edge, Prog. Oceanogr., 35, 353–431, 1995.; Huthnance, J. M., Holt, J. T., and Wakelin, S. L.: Deep ocean exchange with west-European shelf seas, Ocean Sci., 5, 621–634, doi:10.5194/os-5-621-2009, 2009.; Rousseau, D. and Pham, H. L.: Premiers résultats d'un modèle de prévision numérique à courte échéance sur l'Europe, La Météorologie, 20, 1–12, 1971.; Sarkisyan, A. S.: On the dynamics of the origin of wind currents in the baroclinic ocean, Okeanologia+, 11, 393–409, 1962.; JPL: Distributed Active Archive Center, Jet Propulsion Laboratory, NASA, available at: http://podaac.jpl.nasa.gov/dataaccess, 2012.; Large, W. G. and Yeager, S. G.: Diurnal to decadal global forcing for ocean and sea-ice models: The data sets and flux climatologies, NCAR, Technical Rep

 

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