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Auxiliary altimetry product - Internal Tide model (MIOST-IT)

Sea Surface Height

Multivariate Inversion of Ocean Surface Topography- Internal Tide (MIOST-IT) Model products. MIOST-IT database includes 4 tidal components for the ocean internal tide surface elevations. Each tidal component is described by 2 grids (amplitude and phase) provided on a cartesian grid 1/10°x1/10°.

  • The internal tide elevations for the four tidal frequencies M2, S2, K1, O1, are available for download.
  • The regional atlases are also provided.
  • A python script is also available to download to compute the internal tide predictions from MIOST-IT model on given latitude, longitude and time points and creates a NetCDF file that contains the predictions.

MIOST-IT solution is based on an original gridding process using ocean signals modes variability and all altimeter measurements available on the nearly entire altimeter era. MIOST-IT24 (Tchilibou et al., 2025) is a global atlas of coherent internal tide developed during the period 2024-2025. This atlas represents an updated version of MIOST-IT (refere here as MIOST-IT22), which was released in 2022 by Ubelmann et al. (2022).

Data and resources

Additional information

Date (publication)2021-07-09
Date (released)2026-07-15
StatusonGoing
Update frequencyasNeeded
Metadata languagefr
LicenseOpen Licence
Source metadataISO 19115 XML
Last updated2026-11-04
Created2026-11-04
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