Composite analysis of North Atlantic extra-tropical cyclone waves from satellite altimetry observations

León, Sonia Ponce de; Bettencourt, João H.

doi:10.1016/j.asr.2019.07.021

Cited by 32 publications

(38 citation statements)

References 48 publications

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“…The feature-based analysis applied in this work gave new insights into cyclonerelated wave climate distribution and characteristics. The results confirm and reinforce the findings in many extreme wave climatology studies (e.g., Vinoth and Young, 2011) and cyclone-related studies in the North Atlantic Ocean (Takbash et al, 2019;Ponce de León and Bettencourt, 2021;Gramcianinov et al, 2021b) and South Atlantic Ocean (Gramcianinov et al, 2020c(Gramcianinov et al, , 2021a. The novelty of the present work relies on the direct link between cyclones and extreme wave events to add information and justify the observed distributions and trends of the extreme wave climate.…”

Section: Discussionsupporting

confidence: 91%

Impact of Extratropical Cyclone Intensity and Speed on the Extreme Wave Trends in the Atlantic Ocean

Gramcianinov

Camargo

Campos

et al. 2021

Preprint

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This work analyzes the extratropical cyclone-related extreme waves in the ocean surface and their trends in the North and South Atlantic Oceans. Atmospheric and ocean wave products are obtained from ERA5, from 1979 to 2020 with 1-hourly outputs, covering 42 years with the present climate changes evaluated by the difference between the two 21-years time slices. The cyclones are tracked through the relative vorticity at 850 hPa and then associated with extreme wave events using an automated scheme that searches for an extreme wave region 1500 km from the centre of the cyclone, following criteria that exclude possible swell dominated events. The hot-spot regions of cyclone-related waves occurrence found by the method are in agreement with previous studies and are related to the cyclogenesis region and storm track orientation. Most cyclones associated with extreme wave events are generated in the western boundary of the domains. The east-poleward side of the ocean basins presents the highest density of occurrences related to the higher density of cyclone track and the dominance of more mature stage cyclones while in the west side prevail systems on developing stages, with notable propagating fronts and consequently, lower wind persistence. Changes in occurrence cannot be explained just by the storm track variation during the period due to the lack of statistical confidence. However, the wave occurrence responds to changes in the cyclone intensity, modulated by cyclone displacement speed. Regions with an increase of extreme waves are related to the effect of more intense cyclones or cyclones with slower propagation, being the last associated with a longer interaction of winds with the ocean surface.

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Section: Discussionsupporting

confidence: 91%

Impact of Extratropical Cyclone Intensity and Speed on the Extreme Wave Trends in the Atlantic Ocean

Gramcianinov

Camargo

Campos

et al. 2021

Preprint

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“…Especially concerning the sea state, few studies on air-sea interactions focused on impacts. For instance, the sea wave field associated with cyclones is usually a mixture of wind and swell due to the spatial inhomogeneity of intense surface winds and their directional variability among the different cyclone sectors (Ponce de León and Bettencourt, 2019). Extreme storm surges may result from the superposition of different factors directly related to cyclones, such as pressure drop, winds, meteotsunamis and waves, superimposed on the astronomical tide (Lionello et al, 2021;Ferrarin et al, 2021).…”

Section: Assessing the Various Impacts Of Mediterranean Cyclonesmentioning

confidence: 99%

Mediterranean cyclones: current knowledge and open questions on dynamics, prediction, climatology and impacts

Flaounas

Davolio

Raveh‐Rubin

et al. 2022

Weather Clim. Dynam.

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Abstract. A large number of intense cyclones occur every year in the Mediterranean basin, one of the climate change hotspots. Producing a broad range of severe socio-economic and environmental impacts in such a densely populated region, Mediterranean cyclones call for coordinated and interdisciplinary research efforts. This article aims at supporting these efforts by reviewing the status of knowledge in the broad field of Mediterranean cyclones. First, we focus on the climatology of Mediterranean cyclone tracks, their relationship to large-scale atmospheric circulation and their future trends. Second, we discuss the dynamics and atmospheric processes that govern the genesis and development of Mediterranean cyclones. Then, we present the different subtypes of Mediterranean cyclones, devoting special attention to medicanes, i.e. cyclones with tropical characteristics and subjects of numerous recent studies. In a subsequent section, we review the state of the art in forecasting cyclones and relevant high-impact weather, and we discuss in detail the challenges and recent efforts to increase their forecast skill. Finally, we discuss the main impacts produced by cyclones, namely heavy precipitation, windstorms, dust transport, storm surges and sea wave extremes. In the last section of this review article, we thoroughly outline the future directions of research that would advance the broader field of Mediterranean cyclones.

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“…Especially concerning the sea state, few studies on air-sea interactions focused on impacts. For instance, the wave field associated with cyclones is usually a mixture of wind and swell due to the spatial inhomogeneity of intense surface winds and their directional variability among the different cyclone sectors (Ponce de León and Bettencourt, 2019). Extreme storm surges may result from the superposition of different factors directly related to cyclones, such as pressure drop, winds, meteotsunamis, waves, superimposed to the astronomical tide (Lionello et al, 2020;Ferrarin et al, 2021).…”

Section: Assessing the Various Impacts Of Mediterranean Cyclonesmentioning

confidence: 99%

Mediterranean cyclones: Current knowledge and open questions on dynamics, prediction, climatology and impacts

Flaounas

Davolio

Raveh‐Rubin

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

Composite analysis of North Atlantic extra-tropical cyclone waves from satellite altimetry observations

Cited by 32 publications

References 48 publications

Impact of Extratropical Cyclone Intensity and Speed on the Extreme Wave Trends in the Atlantic Ocean

Impact of Extratropical Cyclone Intensity and Speed on the Extreme Wave Trends in the Atlantic Ocean

Mediterranean cyclones: current knowledge and open questions on dynamics, prediction, climatology and impacts

Mediterranean cyclones: Current knowledge and open questions on dynamics, prediction, climatology and impacts

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