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This research aims to investigate the dynamics of internal waves in the deep Ionian Sea using long-term observational data.

July 30, 2026Scientific ReportsOpen Access

Bottom layer internal wave dynamics in the deep sea from decade-separated long-term observations

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This research aims to investigate the dynamics of internal waves in the deep Ionian Sea using long-term observational data.
Utilized two long-term observational records from 2002–2003 and 2012–2013 at depths over 2000m.
Analyzed variations in internal-wave properties, spectral energy, and diffusivity linked to tidal signals.
Employed a two-dimensional Korteweg–de Vries internal tide model to replicate observed variability.
Identified persistent near-inertial and semidiurnal tidal signals at abyssal depths with a blue-shift of the inertial peak.
Observed enhanced spectral energy indicative of nonlinear interactions during the 2012–2013 period.
Highlighted significant modulation of internal-wave propagation and mixing influenced by bathymetry and stratification.

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Long-term observations reveal internal-wave dynamics in the deep sea, indicating significant modulation from bathymetry and stratification.

Giambenedetti et al. (2026) studied this question.

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Long-term observations reveal internal-wave dynamics in the deep sea, indicating significant modulation from bathymetry and stratification.