FN Archimer Export Format PT J TI Incoherent signature of internal tides on sea level in idealized numerical simulations BT AF PONTE, Aurelien KLEIN, Patrice AS 1:1;2:2; FF 1:PDG-ODE-LPO;2:; C1 IFREMER, Lab Phys Oceans, CNRS, IRD,UBO, Plouzane, France. C2 IFREMER, FRANCE CNRS, FRANCE SI BREST SE PDG-ODE-LPO UM LOPS IN WOS Ifremer jusqu'en 2018 copubli-france IF 4.212 TC 61 UR https://archimer.ifremer.fr/doc/00254/36571/35109.pdf LA English DT Article DE ;internal tide;wide-swath altimetry;mesoscale turbulence;incoherence AB The non persistent phase relationship between internal tides and astronomical forcings, also known as incoherence, has been identified as a major question in the context of future wide-swath satellite altimetry. This study addresses this issue using a novel set of numerical experiments where a plane-wave/low-mode internal tide propagates through a turbulent mesoscale eddy field. These experiments demonstrate the emergence of internal tide incoherence as the eddy turbulence is strengthened. In strongly turbulent situations, the internal tide signature on sea level forms complex interference patterns with large amplifications of the initial internal wave. These patterns evolve more rapidly than the signature of the turbulent eddy field on sea level. The implications of such idealized numerical simulations for wide-swath altimetry are discussed. PY 2015 PD MAR SO Geophysical Research Letters SN 0094-8276 PU Amer Geophysical Union VL 42 IS 5 UT 000351847600033 BP 1520 EP 1526 DI 10.1002/2014GL062583 ID 36571 ER EF