FN Archimer Export Format
PT J
TI Estimating the Lagrangian residual circulation in the Iroise Sea
BT 
AF MULLER, Heloise
   BLANKE, Bruno
   DUMAS, Franck
   LEKIEN, Francois
   MARIETTE, Vincent
AS 1:;2:;3:;4:;5:;
FF 1:PDG-DOP-DCB-DYNECO-PHYSED;2:;3:PDG-DOP-DCB-DYNECO-PHYSED;4:;5:;
C1 IFREMER, PHYSED, F-29280 Plouzane, France.
   ACTIMAR, F-29200 Brest, France.
   CNRS, IFREMER, IRD, LPO,UBO,UMR 6523, F-29238 Brest, France.
   Univ Libre Bruxelles, B-1050 Brussels, Belgium.
C2 IFREMER, FRANCE
   ACTIMAR, FRANCE
   CNRS, FRANCE
   UNIV LIBRE BRUXELLES, BELGIUM
   UBO, FRANCE
SI BREST
   UBO
SE PDG-DOP-DCB-DYNECO-PHYSED
   PDG-DRO-UMLPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
IF 2.238
TC 37
UR https://archimer.ifremer.fr/doc/2009/publication-7324.pdf
LA English
DT Article
DE ;High frequency radar data;Regional ocean modeling;Lagrangian residual circulation;Iroise Sea
AB In this study, the Lagrangian residual circulation in the Iroise Sea is estimated by a numerical method where the trajectories of the particles released in any given velocity field are calculated by a diagnostic tool. From their knowledge, the residual Lagrangian currents are computed over a whole number of M2 tidal cycles. The Lagrangian residual circulation is mapped from sea surface currents measured by HF radars and from the surface currents computed with the Model for Applications at Regional Scales (MARS), a regional 3D ocean model forced, here, by the Weather Research and Forecasting (WRF) regional meteorological model. In order to overcome inconvenient space- and time-variations in radar coverage, the measured radar data are interpolated, extrapolated and filtered by Open-Boundary Modal Analysis (OMA). The estimated Lagrangian residual currents are compared with real drifts derived from subsurface and surface Lagrangian drifters released in the Iroise Sea in 2005 and 2007. The residual currents are analysed in the light of the physical processes (tides, atmospheric forcing and density-driven currents) known to govern long-term transport in the Iroise Sea. The similarities between drifter trajectories and the Lagrangian residual circulation inferred from either HF radar surface current measurements or modelled velocities confirm the interest of the methodological approach and make it a reasonable candidate for adaptation to the operational forecast of long-term transport. (C) 2009 Elsevier B.V. All rights reserved.
PY 2009
PD NOV
SO Journal of Marine Systems
SN 0924-7963
PU Elsevier
VL 78
IS S1
UT 000271872700003
DI 10.1016/j.jmarsys.2009.01.008
ID 7324
ER

EF