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Article Dans Une Revue Remote Sensing Année : 2023

On Surface Waves Generated by Extra-Tropical Cyclones—Part II: Simulations

Vahid Cheshm Siyahi
Vladimir Kudryavtsev
Maria Yurovskaya
Fabrice Collard
  • Fonction : Auteur

Résumé

In the previous companion study, satellite data were used to describe peculiar characteristics of ocean surface wave fields, generated by two extra-tropical cyclones (ETCs) rapidly propagating in the North Atlantic. Based on a 2D parametric wave model, further details are now provided to analyse and interpret the spatio-temporal evolution of very intense ETC-generated waves. Significant wave height and wavelength values are shown to reach extreme values, 18 m and 500 m, respectively. Resulting energetic swell systems waves then radiate in the whole eastern part of the North Atlantic, and more particularly in the Norwegian sea region. Moving to higher latitudes, wind forcing characteristics of ETCs evolve, with the shape of the wind field changing from quasi-cyclonic to “air jets/Icelandic lows”. In this paper, the resulting swell generation and propagation, after the deformation of an individual ETC, were studied, as well. Confirmed with comparisons with multi-satellite observations, the application of the parametric-2D wave-ray model was demonstrated to provide robust and highly detailed information on wave generation under very complex wind regime changes.
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Dates et versions

hal-04204066 , version 1 (14-09-2023)

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Vahid Cheshm Siyahi, Vladimir Kudryavtsev, Maria Yurovskaya, Fabrice Collard, Bertrand Chapron. On Surface Waves Generated by Extra-Tropical Cyclones—Part II: Simulations. Remote Sensing, 2023, 15 (9), 2377 (21p.). ⟨10.3390/rs15092377⟩. ⟨hal-04204066⟩
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