Articles | Volume 17, issue 2
Research article
18 Mar 2021
Research article |  | 18 Mar 2021

Imprint of chaotic ocean variability on transports in the southwestern Pacific at interannual timescales

Sophie Cravatte, Guillaume Serazin, Thierry Penduff, and Christophe Menkes

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Cited articles

Alberty, M., Sprintall, J., MacKinnon, J., Germineaud, C., Cravatte, S., and Ganachaud, A.: Moored Observations of Transport in the Solomon Sea, J. Geophys. Res.-Oceans, 124, 8166–8192,, 2019. 
Arbic, B. K., Müller, M., Richman, J. G., Shriver, J. F., Morten, A. J., Scott, R. B., Sérazin, G., and Penduff, T.: Geostrophic turbulence in the frequency–wavenumber domain: Eddy-driven low-frequency variability, J. Phys. Oceanogr., 44, 2050–2069,, 2014. 
Belmadani, A., Concha, E., Donoso, D., Chaigneau, A., Colas, F., Maximenko, N., and Di Lorenzo, E.: Striations and preferred eddy tracks triggered by topographic steering of the background flow in the eastern South Pacific: Southeast Pacific striations and eddies, J. Geophys. Res.-Oceans, 122, 2847–2870,, 2017. 
Berloff P., Kamenkovich, I., and Pedlosky, J.: A model of multiple zonal jets in the oceans: Dynamical and kinematical analysis, J. Phys. Oceanogr., 39, 2711–2734,, 2009. 
Berloff P., Karabasov, S., Farrar, J. T., and Kamenkovich, I.: On latency of multiple zonal jets in the oceans, J. Fluid Mech., 686, 534–567,, 2011. 
Short summary
The various currents in the southwestern Pacific Ocean contribute to the redistribution of waters from the subtropical gyre equatorward and poleward. The drivers of their interannual variability are not completely understood but are usually thought to be related to well-known climate modes of variability. Here, we suggest that oceanic chaotic variability alone, which is by definition unpredictable, explains the majority of this interannual variability south of 20° S.