World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

A Nested Circulation Model for the North Aegean Sea : Volume 3, Issue 1 (24/01/2007)

By Kourafalou, V.

Click here to view

Book Id: WPLBN0004020308
Format Type: PDF Article :
File Size: Pages 16
Reproduction Date: 2015

Title: A Nested Circulation Model for the North Aegean Sea : Volume 3, Issue 1 (24/01/2007)  
Author: Kourafalou, V.
Volume: Vol. 3, Issue 1
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2007
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Tsiaras, K., & Kourafalou, V. (2007). A Nested Circulation Model for the North Aegean Sea : Volume 3, Issue 1 (24/01/2007). Retrieved from http://worldlibrary.net/


Description
Description: Hellenic Center for Marine Research, Anavyssos, Greece. A multi-nested approach has been employed for numerical simulations in the northern part of the Aegean Sea in the framework of the MFSTEP (Mediterranean Forecast System: Toward Environmental Predictions) project. The high resolution (~1.6 km) hydrodynamic model of the North Aegean Sea (NAS) has been nested within a coarser model of the Eastern Mediterranean (resolution ~3.6 km) which is also nested within a basin scale model for the Mediterranean Sea (resolution of ~7 km). The high resolution of the NAS model allows the representation of topographic details that have never been reproduced in modelling studies of the region. Such details can enhance the simulation of coastal features, but can also influence basin-scale processes, such as the pathways of waters of Black Sea origin inflowing at the Dardanelles Straits and bifurcating through island passages.

We employ comparisons of the North Aegean and Eastern Mediterranean models in terms of computed flow fields and distribution of hydrodynamic properties, to evaluate the nesting procedure, the initialization requirements and the ability of a nested model to perform reliable short term simulations that employ high resolution atmospheric forcing, when initialized from a coarser OGCM.

We show that the topographic details of the high resolution, nested NAS model affect the distribution of the Dardanelles plume and the evolution of coastal currents, while the imposed high frequency, high resolution atmospheric forcing allows for the formation of an overall energetic flow field after a few days of spin-up period. Increased resolution and smaller coastal depth in the NAS simulations influence the flow through island passages and straits. A longer initialization procedure results in the establishment of stronger currents and better-developed buoyant plumes.


Summary
A nested circulation model for the North Aegean Sea

Excerpt
Smagorinsky, J.: General circulation experiments with the primitive equations, I. The basic experiment, Mon. Wea. Rev., 91, 99–164, 1963.; Atlas, R.: Atmospheric observations and experiments to assess their usefulness in data assimilation, Journal of the Meteorological Society of Japan, 75(1B), 111–130, 1997.; Balopoulos, E. T., Collins, M. B., and James, A. E.: Residual circulation in a coastal embayment of the Eastern Mediterranean Sea (Thermaikos Bay, N.W. Aegean), Thalassographica, 9, 7–22, 1986.; Bignami, F., Marullo, S., Santoleri, R., and Schiano, M. E.: Longwave radiation budget in the Mediterranean Sea, J. Geophys. Res., 100(C2), 2501–2514, 1995.; Castellari, S., Pinardi, N., and Leaman, K.: A model study of air-sea interactions in the Mediterranean Sea, J. Mar. Syst., 18, 89–114, 1998.; Blumberg, A. F. and Mellor, G. L.: Diagnostic and prognostic numerical circulation studies of the South Atlantic Bight, J. Geophys. Res., 88(C8), 4579–4592, 1983.; Demirov, E. and Pinardi, N.: Simulation of the Mediterranean Sea circulation from 1979 to 1993. Part I: The interannual variability, J. Mar. Syst., 33/34, 23–50, 2002.; Flather, R. A.: A tidal model of the northwest European continental shelf, Memoires Societe Royale des Sciences de Liege, Series 6(10), 141–164, 1976.; Gill., A. E. : Atmosphere-Ocean Dynamics, Academic Press, New York, 662 pp., 1982.; Hellermann, S. and Rosenstein, M.: Normal wind stress over the world ocean with error estimates, J. Phys. Oceanogr., 13, 1093–1104, 1983.; Karageorgis, A. P., Kaberi, H. G., Tengberg, A., Zervakis, V., Hall, P. O. J., and Anagnostou, Ch. L.: Comparison of particulate matter distribution, in relation to hydrography, in the mesotrophic Skagerrak and the oligotrophic northeastern Aegean Sea, Continental Shelf Research, 23, 1787–1809, 2003.; Kondo, J.: Air-sea bulk transfer coefficients in diabatic conditions, Boundary-Layer Meteorol., 9, 91–112, 1975.; Kontoyiannis, H., Kourafalou, V. H., and Papadopoulos, V.: The seasonal characteristics of the hydrology and circulation in the Northwest Aegean Sea (Eastern Mediterranean): observations and modeling, J. Geophys. Res., 108(C9), 3302, doi:10.1029/2001JC001132, 2003.; Korres, G. and Lascaratos, A.: A one-way nested eddy resolving model of the Aegean and Levantine basins: implementation and climatological runs, Ann. Geophys., 21, 205–220, 2003.; Kourafalou, V. H., Oey, L.-Y., Wang, J. D., and Lee, T. N.: The fate of river discharge on the continental shelf. Part I: modelling the river plume and the inner-shelf coastal current, J. Geophys. Res., 101(C2), 3415–3434, 1996.; Kourafalou, V. H. and Barbopoulos, K.: High resolution simulations on the North Aegean Sea seasonal circulation, Ann. Geophys., 21, 251–265, 2003.; Kourafalou, V. H., Savvidis, Y. G., Koutitas, C. G., and Krestenitis, Y. N.: Modeling studies on the processes that influence matter transfer on the Gulf of Thermaikos (NW Aegean Sea), Continental Shelf Research, 24, 203–222, 2004.; Lowe, P. R.: An approximating polynomial for the computation of saturation vapor pressure, J. Appl. Meteorol., 16, 100–103, 1977.; Mellor, G. L. and Yamada, T.: Development of a turbulence closure model for geophysical fluid problems, Rev. Geophys. Space Phys., 20(4), 851–875, 1982.; Bungiorno Nardelli, B., Larnicol, G., D'Acunzo, E., Santoleri, R., Marullo, S., and Le Traon, P.Y.: Near Real Time SLA and SST products during 2-years of MFS pilot project: processing, analysis of the variability and of the coupled patterns, Ann. Geophys., 21, 103–121, 2003.; Natale, S., Sorgente, R., Gabersek, S., Ribotti, A., and Olita, A.: Central Mediterranean Sea forecast: effects of high-resolution atmospheric forcings, Ocean Sci. Discuss., 3, 637–669, 2006.; Nittis, K., Zervakis, V., Papageorgiou, E., and Perivoliotis, L

 

Click To View

Additional Books


  • Sea Wave Modeling with X-band Cosmo-skym... (by )
  • Eddy Characteristics in the South Indian... (by )
  • The 2007 North Atlantic Spring Bloom in ... (by )
  • Laminae Type and Possible Mechanisms for... (by )
  • Tropical Extra-tropical Thermocline Wate... (by )
  • Molecular Biology Techniques and Applica... (by )
  • Turbulence Closure: Turbulence, Waves an... (by )
  • Application of the Gaussian Anamorphosis... (by )
  • Ensurf: Multi-model Sea Level Forecast –... (by )
  • Wave-turbulence Scaling in the Ocean Mix... (by )
  • Estimating Suspended Sediment Concentrat... (by )
  • An Estimate of the Sunda Shelf and the S... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.