FN Archimer Export Format
PT J
TI Numerical Wave Modeling in Conditions with Strong Currents: Dissipation, Refraction, and Relative Wind
BT 
AF ARDHUIN, Fabrice
   ROLAND, Aron
   DUMAS, Franck
   BENNIS, Anne-claire
   SENTCHEV, Alexei
   FORGET, Philippe
   WOLF, Judith
   GIRARD, Francoise
   OSUNA, Pedro
   BENOIT, Michel
AS 1:1;2:2;3:3;4:3;5:4;6:5,6,7;7:8;8:9;9:10;10:11;
FF 1:PDG-ODE-LOS;2:;3:PDG-ODE-DYNECO-PHYSED;4:;5:;6:;7:;8:;9:;10:;
C1 Ifremer, Ctr Brest, Lab Oceanog Spatiale, F-29200 Plouzane, France.
   Tech Univ Darmstadt, Darmstadt, Germany.
   Ifremer, Lab PHYSED, F-29200 Plouzane, France.
   Univ Littoral Cote dOpale, CNRS UMR8187, Lab Oceanol & Geosci, Wimereux, France.
   CNRS, Mediterranean Inst Oceanog, La Garde, France.
   Aix Marseille Univ, La Garde, France.
   Sud Toulon Var Univ, IRD, La Garde, France.
   Natl Oceanog Ctr, Liverpool, Merseyside, England.
   Actimar SAS, Brest, France.
   CICESE, Ensenada, Baja California, Mexico.
   Lab St Venant, Chatou, France.
C2 IFREMER, FRANCE
   UNIV DARMSTADT, GERMANY
   IFREMER, FRANCE
   UNIV LITTORAL COTE D'OPALE, FRANCE
   CNRS, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   IRD, FRANCE
   NOC, UK
   ACTIMAR SAS, FRANCE
   CICESE, MEXICO
   LAB ST VENANT, FRANCE
SI BREST
   UNIV-ETRANGERE
SE PDG-ODE-LOS
   PDG-ODE-DYNECO-PHYSED
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 3.18
TC 74
UR https://archimer.ifremer.fr/doc/00130/24159/22254.pdf
LA English
DT Article
AB Currents effects on waves have led to many developments in numerical wave modeling over the past two decades, from numerical choices to parameterizations. The performance of numerical models in conditions with strong currents is reviewed here, and observed strong effects of opposed currents and modulations of wave heights by tidal currents in several typical situations are interpreted. For current variations on small scales, the rapid steepening of the waves enhances wave breaking. Using different parameterizations with a dissipation rate proportional to some measure of the wave steepness to the fourth power, the results are very different, none being fully satisfactory, which points to the need for more measurements and further refinements of parameterizations. For larger-scale current variations, the observed modifications of the sea state are mostly explained by refraction of waves over currents and relative wind effects, that is, the wind speed relevant for wave generation is the speed in the frame of reference moving with the near-surface current. It is shown that introducing currents in wave models can reduce the errors on significant wave heights by more than 30% in some macrotidal environments, such as the coast of Brittany, in France. This large impact of currents is not confined to the locations where the currents are strongest, but also downwave from strong current gradients.
PY 2012
PD DEC
SO Journal Of Physical Oceanography
SN 0022-3670
PU Amer Meteorological Soc
VL 42
IS 12
UT 000313054800002
BP 2101
EP 2120
DI 10.1175/JPO-D-11-0220.1
ID 24159
ER

EF