FN Archimer Export Format
PT J
TI Generation of harmonics and sub-harmonics from an internal tide in a uniformly stratified fluid: numerical and laboratory experiments
BT 
AF PAIRAUD, Ivane
   STAQUET, Chantal
   SOMMERIA, Joel
   MAHDIZADEH, Mahdi M.
AS 1:;2:;3:;4:;
FF 1:PDG-ODE-LER-LERPAC;2:;3:;4:;
C1 LEGI, CNRS et Univ. Grenoble, France
   IFREMER, Zone portuaire de Brégaillon, BP 330, F-83507 La Seyne-sur-Mer Cedex, France
C2 CNRS, FRANCE
   IFREMER, FRANCE
   INPG, FRANCE
   UNIV HORMOZGAN, IRAN
   UNIV GRENOBLE, FRANCE
SI TOULON
SE PDG-ODE-LER-LERPAC
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
TC 6
UR https://archimer.ifremer.fr/doc/00038/14915/12398.pdf
LA English
DT Article
AB This paper focuses on the internal tide emitted from a continental slope in a uniformly stratified fluid. Results from numerical simulations using the MITgcm and from laboratory experiments performed on the Coriolis platform in Grenoble are compared. Due to their peculiar dispersion relation, internal gravity waves organize into localized beams of energy. We show that the beam structure is well-predicted by the viscous theory of [10], assuming that the internal gravity wave field is emitted by a horizontally oscillating cylinder whose radius is the radius of curvature of the topography at the beam emission. The wave beam can bear a sub-harmonic parametric instability whose vertical scale is recovered from resonant interaction theory. Reflection of the wave beam on the bottom leads to the generation of harmonic beams, consisting of free and trapped waves.
PY 2010
SO Iutam Symposium On Turbulence In The Atmosphere And Oceans
PU Springer
VL 28
IS 1
UT 000291405400005
BP 51
EP 62
DI 10.1007/978-94-007-0360-5_5
ID 14915
ER

EF