Conclusion

•A new reproduction method of the transient small-scale eddy field from a set of time series of field data was proposed. •4D (time series of 3D) oceanic field information  of the scale of 30m was reproduced, which agree well with the original measured data. •The high-wavenumber components of the energy spectra generated by the CFD follow the –5/3 power law well. •The energy dissipation rate and the eddy viscosity obtained from the result of the CFD are of the order of 10-9 m2/s3and 10-3m2/s, respectively, both of which are reasonable in the deep ocean.