A global internal tide modeling framework for improving satellite observations of fine-scale ocean circulation
7 affiliations
- 1Center for Ocean-Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, USA
- 2Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, USA
- 3Research School of Earth Sciences, Australian National University, Canberra, ACT, Australia
- 4College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, USA
- 5Naval Research Laboratory, Stennis Space Center, MS, USA
- 6Division of Marine Science, University of Southern Mississippi, Stennis Space Center, MS, USA
- 7Collecte Localisation Satellites, 31520 Ramonville-Saint-Agne, France
Abstract
Small-scale oceanic eddies and filaments mediate the vertical exchange of heat and carbon within the global ocean. The Surface Water and Ocean Topography (SWOT) mission resolves these features through wide-swath interferometry, but internal tides often mask these observations. Non-phase-locked internal tides present special difficulty because they vary with the evolving ocean background. We show that this chaotic variability can be predicted. We use a data-assimilative ocean forecast model to resolve the mesoscale environment and separate tidal signals from the broader circulation. The model captures the organized structure of these incoherent waves in the independent SWOT measurements. Correcting for the total (phase-locked plus non-phase-locked) internal tide signal reduces the error by 59% relative to current empirical methods. These findings show that non-phase-locked internal tides become predictable when the evolving ocean state is explicitly modeled. Our framework allows wide-swath altimetry to more accurately map climatically important fine-scale dynamics in the ocean.
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BibTeX
@article{yadidya2026global,
title = {{A global internal tide modeling framework for improving satellite observations of fine-scale ocean circulation}},
author = {Badarvada Yadidya and Brian K. Arbic and Edward D. Zaron and Jay F. Shriver and Maarten Cornelis Buijsman and Eric P. Chassignet and Loren Carrère and Michel Tchilibou},
journal = {Science Advances},
year = {2026},
month = jun,
doi = {10.1126/sciadv.aee1885},
url = {https://doi.org/10.1126/sciadv.aee1885},
note = {CC BY},
}
RIS
TY - JOUR
TI - A global internal tide modeling framework for improving satellite observations of fine-scale ocean circulation
AU - Badarvada Yadidya
AU - Brian K. Arbic
AU - Edward D. Zaron
AU - Jay F. Shriver
AU - Maarten Cornelis Buijsman
AU - Eric P. Chassignet
AU - Loren Carrère
AU - Michel Tchilibou
PY - 2026
DA - 2026/06/03
JO - Science Advances
DO - 10.1126/sciadv.aee1885
UR - https://doi.org/10.1126/sciadv.aee1885
AB - Small-scale oceanic eddies and filaments mediate the vertical exchange of heat and carbon within the global ocean. The Surface Water and Ocean Topography (SWOT) mission resolves these features through wide-swath interferometry, but internal tides often mask these observations. Non-phase-locked internal tides present special difficulty because they vary with the evolving ocean background. We show that this chaotic variability can be predicted. We use a data-assimilative ocean forecast model to resolve the mesoscale environment and separate tidal signals from the broader circulation. The model captures the organized structure of these incoherent waves in the independent SWOT measurements. Correcting for the total (phase-locked plus non-phase-locked) internal tide signal reduces the error by 59% relative to current empirical methods. These findings show that non-phase-locked internal tides become predictable when the evolving ocean state is explicitly modeled. Our framework allows wide-swath altimetry to more accurately map climatically important fine-scale dynamics in the ocean.
SN - 2375-2548
ER -