Level-2P Derived Products from SWIM instrument of CFOSAT
Products containing Stokes drift contributions and wave spectral shape parameters derived from SWIM spectra and numerical wave modeling. The Stokes drift represents the Lagrangian mean current induced solely by surface waves. While its effect is strongest at the ocean surface, it can remain significant down to several tens of meters below the surface. The main novelty of v2.0 is the availability of a comprehensive set of wave spectral shape parameters designed to characterize both omnidirectional and directional (2D) wave spectra. These parameters are widely adopted by the wave modeling community to describe key aspects of sea-state dynamics and wave spectrum properties. In particular, they provide valuable indicators for assessing the likelihood of extreme wave events, including rogue waves through metrics such as the Benjamin–Feir Index, as well as the probability of hazardous conditions associated with crossing seas using parameters such as the Cross-Sea Index and Cross-Trough Correlation. Together, these new parameters offer enhanced capabilities for the analysis of sea-state variability, wave interactions, and extreme ocean conditions.
Data and resources
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D. Hauser et al., "New Observations From the SWIM Radar On-Board CFOSAT: Instrument Validation and Ocean Wave Measurement Assessment," in IEEE Transactions on…HTML Open
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Breivik, Ø., P. A. E. M. Janssen, and J. Bidlot, 2014: Approximate Stokes Drift Profiles in Deep Water. J. Phys. Oceanogr., 44, 2433–2445HTML Open
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Peureux, C., Benetazzo, A., and Ardhuin, F.: Note on the directional properties of meter-scale gravity waves, Ocean Sci., 14, 41–52HTML Open
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Elfouhaily, T., B. Chapron, K. Katsaros, and D. Vandemark (1997), A unified directional spectrum for long and short wind-driven waves, J. Geophys. Res.,…HTML Open
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Pierson Jr., W. J., and L. Moskowitz (1964), A proposed spectral form for fully developed wind seas based on the similarity theory of S. A. Kitaigorodskii, J.…HTML Open
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Kenyon, K. E. (1969), Stokes drift for random gravity waves, J. Geophys. Res., 74(28), 6991–6994HTML Open
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Additional information
| Temporal extent | 2019-01-01 – 2026-06-01 |
|---|---|
| Date (creation) | 2024-10-01 |
| Date (publication) | 2025-04-25 |
| Status | onGoing |
| Update frequency | asNeeded |
| Metadata language | fr |
| License | Licence ouverte |
| Source metadata | ISO 19115 XML |
| Last updated | 2026-11-04 |
| Created | 2026-11-04 |
| API | package_show |