Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8644
AuthorsDe Dominicis, M.* 
Leuzzi, G.* 
Monti, P.* 
Pinardi, N.* 
Poulain, P.* 
TitleEddy diffusivity derived from drifter data for dispersion model applications
Issue Date18-Aug-2012
Series/Report no./62 (2012)
DOI10.1007/s10236-012-0564-2
URIhttp://hdl.handle.net/2122/8644
KeywordsDrifter
Lagrangian statistics
Diffusivity
Marine turbulence
Lagrangian models
Subject Classification03. Hydrosphere::03.01. General::03.01.05. Operational oceanography 
AbstractOcean transport and dispersion processes are at the present time simulated using Lagrangian stochastic models coupled with Eulerian circulation models that are supplying analyses and forecasts of the ocean currents at unprecedented time and space resolution. Using the Lagrangian approach, each particle displacement is described by an average motion and a fluctuating part. The first one represents the advection associated with the Eulerian current field of the circulation models while the second one describes the sub-grid scale diffusion. The focus of this study is to quantify the sub-grid scale diffusion of the Lagrangian models written in terms of a horizontal eddy diffusivity. Using a large database of drifters released in different regions of the Mediterranean Sea, the Lagrangian sub-grid scale diffusion has been computed, by considering different regimes when averaging statistical quantities. In addition, the real drifters have been simulated using a trajectory model forced by OGCM currents, focusing on how the Lagrangian properties are reproduced by the simulated trajectories.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
10.1007-s10236-012-0564-2.pdfpublished paper2.17 MBAdobe PDFView/Open
Show full item record

Page view(s)

262
Last Week
0
Last month
1
checked on Aug 16, 2017

Download(s)

94
checked on Aug 16, 2017

Google ScholarTM

Check

Altmetric