@article{fdi:010068730,
  title = {{T}rapping of the near-inertial wave wakes of two consecutive hurricanes in the {L}oop {C}urrent},
  author = {{P}allas-{S}anz, {E}. and {C}andela, {J}. and {S}heinbaum, {J}. and {O}choa, {J}. and {J}ouanno, {J}ulien},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he near-inertial trapping of the wave wakes of two consecutive hurricanes at the base of the {L}oop {C}urrent is described using observations of a triangular mooring array. {H}urricane {G}ustav translates over the {L}oop {C}urrent twice as fast and leads to a sharper, but equally strong, wind intensity peak than {H}urricane {I}ke. {F}ollowing the passage of {G}ustav, near-inertial oscillations in the main thermocline have large horizontal (similar to 34045km) and vertical (similar to 850m) scales. {T}he wave kinetic energy propagates down with a vertical group velocity of several tens of meters per day and leads to a downward energy flux of [1.82-7.10]x10(-3){W}m(-2). {O}bservations suggest that the dispersion of the wave wakes produced by the hurricanes is driven by {D}oppler shifting in the upper similar to 600m and the vertical-varying vorticity inside the {L}oop {C}urrent. {N}ear-inertial kinetic energy is enhanced and near-inertial oscillations are circularly polarized in a critical layer at the base of the {L}oop {C}urrent where the group velocity vector is nearly horizontal. {T}he trapping and amplification of the near-inertial wave wakes of two consecutive hurricanes is addressed using a primitive equation numerical model. {N}umerical results suggest an increase of the near-inertial kinetic energy and vertical shear by a factor of similar to 2 near the critical layer due to wave-mean flow and wave-wave interactions. {A} {K}-profile parameterization of these interactions results in banded regions of elevated turbulent kinetic energy dissipation rates of {E}[0.5-6.6]x10(-6){W}m(-3) for critical {R}ichardson number {R}i(c)=1, depending on the stratification of the water column.},
  keywords = {near-inertial oscillations ; hurricanes ; trapping ; {LC} system},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {121},
  numero = {10},
  pages = {7431--7454},
  ISSN = {2169-9275},
  year = {2016},
  DOI = {10.1002/2015jc011592},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068730},
}