FN Archimer Export Format
PT J
TI Numerical modeling of hydraulic control, solitary waves and primary instabilities in the Strait of Gibraltar
BT 
AF Hilt, M.
   Roblou, L.
   Nguyen, C.
   Marchesiello, P.
   Lemarié, F.
   Jullien, Swen
   Dumas, Franck
   Debreu, L.
   Capet, Xavier
   Bordois, L.
   Benshila, R.
   Auclair, F.
AS 1:1;2:1;3:1;4:2;5:4;6:5;7:6;8:4;9:7;10:6;11:3;12:1;
FF 1:;2:;3:;4:;5:;6:PDG-ODE-LOPS-SIAM;7:;8:;9:;10:;11:;12:;
C1 Laboratoire d’Aérologie, Université de Toulouse, CNRS, UPS, France
   LEGOS/IRD, 31400 Toulouse, France
   LEGOS/CNRS, 31400 Toulouse, France
   Univ Grenoble Alpes, Inria, CNRS, Grenoble INP, LJK, Grenoble, France
   Ifremer, Univ. Brest, CNRS, IRD, Laboratoire d’Océanographie Physique et Spatiale (LOPS), IUEM, F- 29280, Plouzané, France
   Service Hydrographie et Océanographie de la Marine, Brest, France
   LOCEAN/IPSL, CNRS/UPMC/IRD/MNHN, Paris, France
C2 UNIV TOULOUSE, FRANCE
   IRD, FRANCE
   CNRS, FRANCE
   UNIV GRENOBLE ALPES, FRANCE
   IFREMER, FRANCE
   SHOM, FRANCE
   IPSL, FRANCE
SI BREST
SE PDG-ODE-LOPS-SIAM
UM LOPS
IN WOS Ifremer UMR
   copubli-france
   copubli-p187
   copubli-univ-france
IF 3.686
TC 23
UR https://archimer.ifremer.fr/doc/00632/74431/74150.pdf
LA English
DT Article
DE ;Strait of Gibraltar;Internal solitary waves;Nonhydrostatic processes;Large Eddy Simulation
AB A two-dimensional, vertical section of the Strait of Gibraltar is simulated numerically with the nonhydrostatic/non-Boussinesq three-dimensional CROCO model to investigate details of small-scale dynamics. The proposed configuration is simple, computationally efficient and incorporates the configuration of sills characteristic of this region. Despite the shortcomings of a 2D representation, this configuration provides a realistic depiction of small-scale mechanisms in the strait during a typical tidal cycle: internal solitary waves generation and propagation, occurrence of hydraulic controls and hydraulic jumps at the sills and presence of active turbulent patches. In particular, the well-known eastward propagation of large amplitude internal waves is assessed using the Korteweg de Vries (KdV) propagation model for solitary waves. As a step towards establishing a realistic three-dimensional Large Eddy Simulation (LES), the sensitivity of the configuration to various choices (e.g., resolution, amplitude of tidal forcing or numerical schemes) is investigated. Our analyses indicate that the representation of small-scale dynamics in the Strait of Gibraltar can be much improved by increasing resolution and relaxing the hydrostatic assumption. Further studies are necessary to grasp the mechanisms of mixing and/or stirring induced by this fine scale processes. 
PY 2020
PD JUN
SO Ocean Modelling
SN 1463-5003
PU Elsevier BV
VL 151
UT 000544059500003
DI 10.1016/j.ocemod.2020.101642
ID 74431
ER

EF