The dataset consists of global two-dimensional maps of internal tide energy sources and sinks, at half-degree horizontal resolution.

Estimated energy sources are provided for the three most energetic tidal constituents: M₂, S₂ and K₁. They are decomposed into vertical normal modes. Units are Watts per square meter.

Estimated energy sinks are provided for each of M₂, S₂ and K₁ and for 'All constituents'. 'All constituents' is an extrapolation to the eight most energetic tidal constituents, obtained as a weighted sum of M₂, S₂ and K₁ fields. Energy sinks are depth-integrated and decomposed into five process contributions: (i) local dissipation of high modes; (ii) dissipation of low modes via wave-wave interactions; (iii) dissipation of low modes via scattering by abyssal hills; (iv) dissipation of low modes via critical reflection; (v) dissipation of low modes via shoaling. Units are Watts per square meter.

Methods and documentation can be found in the following publication: de Lavergne, C., Falahat, S., Madec, G., Roquet, F., Nycander, J., Vic, C. Toward global maps of internal tide energy sinks. Ocean Modelling, 137, 52-75 (2019). doi:10.1016/j.ocemod.2019.03.010. Provided maps of energy sinks correspond to the reference (REF) experiment described in the article.