Articles | Volume 14, issue 5
https://doi.org/10.5194/os-14-1283-2018
https://doi.org/10.5194/os-14-1283-2018
Research article
 | 
24 Oct 2018
Research article |  | 24 Oct 2018

Spectral signatures of the tropical Pacific dynamics from model and altimetry: a focus on the meso-/submesoscale range

Michel Tchilibou, Lionel Gourdeau, Rosemary Morrow, Guillaume Serazin, Bughsin Djath, and Florent Lyard

Related authors

Internal tides off the Amazon shelf in the western tropical Atlantic: Analysis of SWOT Cal/Val Mission Data
Michel Tchilibou, Loren Carrere, Florent Lyard, Clément Ubelmann, Gérald Dibarboure, Edward D. Zaron, and Brian K. Arbic
EGUsphere, https://doi.org/10.5194/egusphere-2024-1857,https://doi.org/10.5194/egusphere-2024-1857, 2024
Short summary
Internal tides off the Amazon shelf – Part 1: The importance of the structuring of ocean temperature during two contrasted seasons
Fernand Assene, Ariane Koch-Larrouy, Isabelle Dadou, Michel Tchilibou, Guillaume Morvan, Jérôme Chanut, Alex Costa da Silva, Vincent Vantrepotte, Damien Allain, and Trung-Kien Tran
Ocean Sci., 20, 43–67, https://doi.org/10.5194/os-20-43-2024,https://doi.org/10.5194/os-20-43-2024, 2024
Short summary
Regional modeling of internal-tide dynamics around New Caledonia – Part 1: Coherent internal-tide characteristics and sea surface height signature
Arne Bendinger, Sophie Cravatte, Lionel Gourdeau, Laurent Brodeau, Aurélie Albert, Michel Tchilibou, Florent Lyard, and Clément Vic
Ocean Sci., 19, 1315–1338, https://doi.org/10.5194/os-19-1315-2023,https://doi.org/10.5194/os-19-1315-2023, 2023
Short summary
Internal tides off the Amazon shelf during two contrasted seasons: interactions with background circulation and SSH imprints
Michel Tchilibou, Ariane Koch-Larrouy, Simon Barbot, Florent Lyard, Yves Morel, Julien Jouanno, and Rosemary Morrow
Ocean Sci., 18, 1591–1618, https://doi.org/10.5194/os-18-1591-2022,https://doi.org/10.5194/os-18-1591-2022, 2022
Short summary
Background stratification impacts on internal tide generation and abyssal propagation in the western equatorial Atlantic and the Bay of Biscay
Simon Barbot, Florent Lyard, Michel Tchilibou, and Loren Carrere
Ocean Sci., 17, 1563–1583, https://doi.org/10.5194/os-17-1563-2021,https://doi.org/10.5194/os-17-1563-2021, 2021
Short summary

Cited articles

Adcroft, A., Hill, C., and Marshall, J.: Representation of topography by shaved cells in a height coordinate ocean model, Mon. Weather Rev., 125, 2293–2315, 1997. 
Barnier B., Madec, G., Penduff, T., Molines, J.-M., Treguier, A.-M., Le Sommer, J., Beckmann, A., Biastoch, A., Böning, C., Dengg, J., Derval, C., Durand, E., Gulev, S., Remy, E., Talandier, C., Theetten, S., Maltrud, M., McClean, J., and De Cuevas, B.: Impact of partial steps and momentum advection schemes in a global ocean circulation model at eddy permitting resolution, Ocean Dynam., 4, 543–567, https://doi.org/10.1007/s10236-006-0082-1, 2006. 
Bendat, J. S. and Piersol A. G.: Random Data: Analysis and Measurement Procedures, 4th Edn., Wiley-Intersci., Hoboken, NJ, 2000. 
Biri, S., Serra, N., Scharffenberg, M. G., and Stammer, D.: Atlantic sea surface height and velocity spectra inferred from satellite altimetry and a hierarchy of numerical simulations, J. Geophys. Res.-Oceans, 121, 4157–4177, https://doi.org/10.1002/2015JC011503, 2016. 
Capet, X., Klein, P., Hua, B., Lapeyre, G., and McWilliams, J. C.: Mesoscale to submesoscale transition in the California Current system. Part III: Energy balance and flux, J. Phys. Oceanogr., 38, 2256–2269, 2008. 
Download
Short summary
This paper is motivated by the next SWOT altimetric mission dedicated to the observation of mesoscale and submesoscale oceanic features. It focuses on tropical areas with a strong discrepancy in the spectral signature between altimetry and models. The paper reviews the spectral signature of tropical turbulence which presents a rich variety of phenomena depending on the latitudinal dependence of the Coriolis force. Internal tides observed by altimetry explain the discrepancy with the model.