World Library  

Add to Book Shelf
Flag as Inappropriate
Email this Book

The Role of Vertical Shear on the Horizontal Oceanic Dispersion : Volume 12, Issue 5 (02/09/2015)

By Lanotte, A. S.

Click here to view

Book Id: WPLBN0004013755
Format Type: PDF Article :
File Size: Pages 24
Reproduction Date: 2015

Title: The Role of Vertical Shear on the Horizontal Oceanic Dispersion : Volume 12, Issue 5 (02/09/2015)  
Author: Lanotte, A. S.
Volume: Vol. 12, Issue 5
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


APA MLA Chicago

Corrado, R., Palatella, L., Lacorata, G., Schipa, I., Santoleri, R., Lanotte, A. S., & Pizzigalli, C. (2015). The Role of Vertical Shear on the Horizontal Oceanic Dispersion : Volume 12, Issue 5 (02/09/2015). Retrieved from

Description: CNR ISAC, GOS Team, Str. Prov. Lecce Monteroni, 73100 Lecce, Italy. The effect of vertical shear on the horizontal dispersion properties of passive tracer particles on the continental shelf of South Mediterranean is investigated by means of observative and model data. In-situ current measurements reveal that vertical velocity gradients in the upper mixed layer decorrelate quite fast (∼ 1 day), whereas basin-scale ocean circulation models tend to overestimate such decorrelation time because of finite resolution effects. Horizontal dispersion simulated by an eddy-permitting ocean model, like, e.g., the Mediterranean Forecasting System, is mosty affected by: (1) unresolved scale motions, and mesoscale motions that are largely smoothed out; (2) poorly resolved time variability of vertical velocity profiles in the upper layer. For the case study we have analysed, we show that a suitable use of kinematic parameterisations is helpful to implement realistic statistical features of tracer dispersion in two and three dimensions. The approach here suggested provides a functional tool to control the horizontal spreading of small organisms or substance concentrations, and is thus relevant for marine biology, pollutant dispersion as well as oil spill applications.

The role of vertical shear on the horizontal oceanic dispersion

Bennett, A. F.: A Lagrangian analysis of turbulent diffusion, Rev. Geophys., 25, 799–822, 1987.; Bennett, A. F.: Lagrangian Fluid Dynamics, Cambridge University Press, Cambridge, UK, 2005.; Berloff, P. and McWilliams, J.: Material transport in Oceanic gyres – Part 2: Hierarchy of stochastic models, J. Phys. Ocean., 32, 797–830, 2002.; Boffetta, G., Celani, A., Cencini, M., Lacorata, G., and Vulpiani, A.: Non-asymptotic properties of transport and mixing, Chaos, 10, 50–60, 2000.; Berti, S., Alves Dos Santos, F., Lacorata, G., and Vulpiani, A.: Lagrangian Drifter Dispersion in the Southwestern Atlantic Ocean, J. Phys. Ocean., 41, 1659–1672, 2011.; Biferale, L., Lanotte, A. S., Scatamacchia, R., and Toschi, F.: Intermittency in the relative separations of tracers and of heavy particles in turbulent flows, J. Fluid Mech., 757, 550–572, 2014.; Celani, A., Villermaux, E., and Vergassola, M.: Odor Landscapes in Turbulent Environments, Phys. Rev. X, 4, 041015, doi:10.1103/PhysRevX.4.041015, 2014.; Davis, R.: Oceanic property transport, Lagrangian particle statistics, and their prediction, J. Mar. Res., 41, 163–194, 1983.; DiGiacomo, P. M., Washburnb, L., Holta, B., and Jonesc, B. H.: Coastal pollution hazards in southern California observed by SAR imagery: stormwater plumes, wastewater plumes, and natural hydrocarbon seeps, Marine Poll. Bull., 49, 1013–1024, 2004.; Durham, W., Climent, E., Barry, M., De Lillo, F., Boffetta, G., Cencini, M., and Stocker, R.: Turbulence drives microscale patches of motile phytoplankton, Nat. Comm., 4, 2148, doi:10.1038/ncomms3148, 2013.; Er-el, J. and Peskin, R.: Relative diffusion of constant-level ballons in the southern hemisphere, J. Atmos. Sci., 38, 2264–2274, 1981.; Falkovich, G., Gawȩdzki, K., and Vergassola, M.: Particles and fields in fluid turbulence, Rev. Mod. Phys., 73, 913–975, 2001.; Frisch, U.: Turbulence, the legacy of A. N. Kolmogorov, Cambridge University Press, Cambridge, UK, 1995.; Garrett, C.: Turbulent Dispersion in the Ocean, Prog. Ocean., 70, 113–125, 2006.; Okubo, A.: Oceanic diffusion diagrams, Deep-Sea Res., 18, 789–802, 1971.; Ollitrault, M., Gabillet, C., and De Verdière, C.: Open ocean regimes of relative dispersion, J. Fluid Mech., 533, 381–407, 2005.; Haza, A. C., Piterbarg, L., Martin, P., Ozgokmen, T. M., and Griffa, A.: A Lagrangian subgridscale model for particle transport improvement and application in the Adriatic Sea using the Navy Coastal Ocean Model, Ocean Mod., 7, 68–91, 2007.; Ikawa, T., Okubo, A., Okabe, H., and Cheng, L.: Oceanic diffusion and the pelagic insects Halobates spp. (Gerridae: Hemiptera), Mar. Biol., 131, 195–201, 1998.; Israelsson, P., Young Do, K., and Adams, E.: A comparison of three Lagrangian approaches for extending near field mixing calculations, Envir. Mod. Soft., 21, 1631–1649, 2006.; LaCasce, J. H.: Statistics from Lagrangian observations, Prog. Ocean., 77, 1–29, 2008.; LaCasce, J. H.: Relative displacement probability distribution functions from balloons and drifters, J. Mar. Res., 68, 433–457, 2010.; LaCasce, J. H. and Bower, A.: Relative dispersion in the subsurface northatlantic, J. Mar. Res., 58, 863–894, 2000.; Lacorata, G., Palatella, L., and Santoleri, R.: Lagrangian predictability characteristics of an Ocean Model, J. Geophys. Res.-Oceans, 119, 8029–8038, 2014.; Lévêque, E., Toschi, F., Shao, L., and Bertoglio, J.-P.: Shear-improved Smagorinsky model for large-eddy simulation of wall-bounded turbulent flows, J. Fluid Mech., 570, 491–502, 2007.; Monin, A. S. and Yaglom, A. M.: Statistical Fluid Mechanics, MIT Press, Boston, USA, 1975.; Morel, P. and Larchevêque, M.: Relative dispersion of constant level baloons in the 200 mb general circulation, J. Atmos. Sci., 31, 2189–2196, 1974.; Okubo, A.: Some remarks on the Importance of the Shear Effect on Horizontal Diffusion, J. Ocean. Soc. Jap., 24, 60–69, 19


Click To View

Additional Books

  • Shifting Momentum Balance and Frictional... (by )
  • Impact of Hydrographic Data Assimilation... (by )
  • An Ensemble Study of Extreme Storm Surge... (by )
  • Roles of Initial Ocean Surface and Subsu... (by )
  • Topaz4: an Ocean-sea Ice Data Assimilati... (by )
  • Improving the Parameterisation of Horizo... (by )
  • Observations of Water Masses and Circula... (by )
  • The Radmed Monitoring Program: Towards a... (by )
  • Empirical Correction of Xbt Fall Rate an... (by )
  • Long Term Trends in the Sea Surface Temp... (by )
  • Wind Forcing and Fate of Sardinella Auri... (by )
  • Improved Sea Level Record Over the Satel... (by )
Scroll Left
Scroll Right


Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Fair 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.