Surface Gravity Wave Modeling in Tropical Cyclones

Fan, Yalin; Hwang, Paul A.; Yu, John Z.

doi:10.5772/intechopen.93275

Cited by 4 publications

(4 citation statements)

References 67 publications

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“…(2007)). However, uncertainties on these parameters still remain in certain conditions, in particular those strongly forced by the wind like in the Southern Ocean (Aouf et al., 2021; Young et al., 2020) or within tropical storms (Fan et al., 2020). Furthermore, the dominant wave period from the models still shows important biases with respect to observations (see ECMWF reports).…”

Section: Introductionmentioning

confidence: 99%

“…During the last two decades, most of these models have reached an appropriate degree of maturity to provide a fairly good agreement with respect to in situ and satellite observations, for the main parameters of the sea-state, namely the significant wave height, the mean direction and the mean period (Bidlot (2017), and ECMWF reports1; The WISE Group et al (2007)). However, uncertainties on these parameters still remain in certain conditions, in particular those strongly forced by the wind like in the Southern Ocean (Aouf et al, 2021;Young et al, 2020) or within tropical storms (Fan et al, 2020). Furthermore, the dominant wave period from the models still shows important biases with respect to observations (see ECMWF reports).…”

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confidence: 99%

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Directional and Frequency Spread of Surface Ocean Waves From SWIM Measurements

et al. 2021

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Directional and Frequency Spread of Surface Ocean Waves From SWIM Measurements

et al. 2021

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“…

Tropical cyclones (TCs) are extreme meteorological events which generate extreme winds, waves and precipitations. The very high waves generated by the cyclones impact the maritime navigation, the risk in coastal areas and modify the ocean-atmosphere interactions (Fan et al, 2020;Lin et al, 2021;Prakash et al, 2019;Zhang et al, 2021). Therefore, a detailed description and a better understanding of the wave field properties under TC conditions is a topic of great relevance to oceanographic research and engineering applications.Tropical cyclones are moving systems characterized by rotational winds with complex features such as radial gradients and asymmetry, with usually stronger winds on the right (left) side of the TC displacement direction in the Northern (Southern) Hemisphere.

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confidence: 99%

Wave Field Properties in Tropical Cyclones From the Spectral Observation of the CFOSAT/SWIM Spaceborne Instrument

2023

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Tropical cyclones (TCs) are extreme events that generate, because of their movement, complex wave fields. The Surface Wave Investigation and Monitoring (SWIM) instrument is a real aperture radar that provides unprecedented detailed information about the waves with dominant wavelength between 70 and 500 m in all directions at the global scale. In this study we collocated 3 years of SWIM data with 67 TCs in the Northern Hemisphere to analyze the impact of the TC characteristics on the wave field. TCs have been classified into three different classes (slow, moderate speed, and fast) estimated based on the ratio between the maximum sustained wind and the displacement velocity. In order to analyze the characteristics of the wave field in the space domain, the observations have been separated according to the distance with the TC center and the quadrant. The results show that the characteristics of the TCs impact the wave field: the more favorable conditions for trapped wave phenomenon appears to be under moderate speed TC conditions. In slow and moderate speed TCs, close to the center the directional spectra are mono‐modal and tend to become bi‐ or multi‐modal when the distance to the center increases whereas in fast‐moving TCs, the directional spectra are always bi‐ or multi‐modal. Omni‐directional spectra show similarities with fetch‐limited spectra in slow and moderate speed TCs whereas in fast‐moving TCs, because of the presence of mixed‐sea, the decrease of energy with frequency is less steep than in fetch‐limited conditions.

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“…The analysis of potential cyclones impacting the Anse Maurice beach employed the HURDAT2 dataset [48,49]. It is essential to consider actual hurricane tracks, as numerical models utilized for offshore wave condition extraction may not accurately replicate cyclonic waves due to the speed, variability, and unpredictability of these events [50][51][52]. The offshore wave dataset has only been available for about a decade, and no wave data exists for the historic period.…”

Section: Cyclones Tracksmentioning

confidence: 99%

Seasonal to Multi-Decadal Shoreline Change on a Reef-Fringed Beach

Laigre,

Balouin,

Villarroel-Lamb

et al. 2023

Coasts

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This study investigates the shoreline dynamics of a Caribbean reef-lined beach by utilizing a long-term satellite dataset spanning 75 years and a short-term, high-frequency dataset captured by a fixed camera over 3 years. An array of statistical methods, including ARIMA models, are employed to examine the impact of storms and potential cyclical influences on the shoreline dynamics. The findings indicate that significant storm events trigger a substantial retreat of the vegetation limit, followed by a slow recovery. Given the current frequency of such major events, complete recovery may take several decades, resulting in a minor influence of cyclones on the long-term erosion trend, which remains moderate. The short-term shoreline evolution is primarily driven by the annual cyclicity of the still water level, which generates an annual oscillation—an insight not previously reported. In the context of climate change, alterations to sea-level rise and cyclone frequency could disrupt the observed dynamic equilibrium at different timescales. Such changes could result in an alteration of existing cyclicities, disturbance of recovery periods, increased long-term shoreline retreat rates, and potentially affect overall coastal resilience over time.

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Surface Gravity Wave Modeling in Tropical Cyclones

Cited by 4 publications

References 67 publications

Directional and Frequency Spread of Surface Ocean Waves From SWIM Measurements

Directional and Frequency Spread of Surface Ocean Waves From SWIM Measurements

Wave Field Properties in Tropical Cyclones From the Spectral Observation of the CFOSAT/SWIM Spaceborne Instrument

Seasonal to Multi-Decadal Shoreline Change on a Reef-Fringed Beach

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