The Impact of Rain on Ocean Surface Waves and Currents

The ocean surface waves during Super Typhoons Maria (2018), Lekima (2019), and Meranti (2016) were reproduced using hybrid typhoon winds and a fully coupled wave-tide-circulation modeling system (SCHISM-WWM-III). The hindcasted significant wave heights are in good agreement with the along-track significant wave heights measured by the altimeters aboard the SARAL (Satellite with ARgos and ALtiKa) and Jason-2 satellites. Two numerical experiments pairing Super Typhoons Maria (2018) and Meranti (2016) and Super Typhoons Lekima (2019) and Meranti (2016) were conducted to analyze the storm wave characteristics of binary and individual typhoons. Four points located near the tracks of the three super typhoons were selected to elucidate the effects of binary typhoons on ocean surface waves. The comparisons indicate that binary typhoons not only cause an increase in the significant wave height simulations at four selected pints but also result in increases in the one-dimensional wave energy and two-dimensional directional wave spectra. Our results also reveal that the effects of binary typhoons on ocean surface waves are more significant at the periphery of the typhoon than near the center of the typhoon. The interactions between waves generated by Super Typhoons Maria (2018) and Meranti (2016) or Super Typhoons Lekima (2019) and Meranti (2016) might be diminished by Taiwan Island even if the separation distance between two typhoons is <700 km.

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GPS sounding of ocean surface waves: theoretical assessment

IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174) ◽

10.1109/igarss.1998.703722 ◽

1998 ◽

Cited By ~ 10

Author(s):

S.F. Clifford ◽

V.I. Tatarskii ◽

A.G. Voronovich ◽

V.U. Zavorotny

Keyword(s):

Surface Waves ◽

Ocean Surface ◽

Ocean Surface Waves ◽

Theoretical Assessment

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Coupled processes in an ocean-sea ice-wave configuration

10.5194/egusphere-egu21-12983 ◽

2021 ◽

Author(s):

Stefanie Rynders ◽

Yevgeny Aksenov ◽

Andrew Coward

Keyword(s):

Sea Ice ◽

Surface Waves ◽

Wave Attenuation ◽

Computational Cost ◽

Breaking Waves ◽

Coupled Processes ◽

Computational Power ◽

Marine Systems ◽

Ocean Surface Waves ◽

The Impact

<p>Marginal ice zones are areas with many interactions between ocean, surface waves, sea ice and atmosphere. Increasing computational power makes it possible to perform increasingly complex simulations of marine systems, with more components of the climate system that are more interacting. We have produced a set of increasingly coupled simulations with NEMO, CICE and WW3, exchanging more and more variables. The configuration is global at 1 degree resolution. The focus is on wave attenuation in sea ice and the impact of using modelled wave height for ocean mixing due to breaking waves. The example simulations give an idea of the possible impact on the simulated state versus the still considerable computational cost.</p>

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Skilful Seasonal Prediction of Ocean Surface Waves in the Atlantic Ocean

Geophysical Research Letters ◽

10.1029/2018gl081334 ◽

2019 ◽

Vol 46 (3) ◽

pp. 1731-1739

Author(s):

Mikhail Dobrynin ◽

Tobias Kleine ◽

André Düsterhus ◽

Johanna Baehr

Keyword(s):

Atlantic Ocean ◽

Surface Waves ◽

Seasonal Prediction ◽

Ocean Surface ◽

Ocean Surface Waves

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VISIR-1.b: ocean surface gravity waves and currents for energy-efficient navigation

Geoscientific Model Development ◽

10.5194/gmd-12-3449-2019 ◽

2019 ◽

Vol 12 (8) ◽

pp. 3449-3480 ◽

Cited By ~ 2

Author(s):

Gianandrea Mannarini ◽

Lorenzo Carelli

Keyword(s):

Energy Efficiency ◽

Gravity Waves ◽

Ocean Surface ◽

Surface Gravity ◽

Ocean Current ◽

Ship Routing ◽

Surface Gravity Waves ◽

Waves And Currents ◽

The Impact

Abstract. The latest development of the ship-routing model published in Mannarini et al. (2016a) is VISIR-1.b, which is presented here. The new version of the model targets large ocean-going vessels by considering both ocean surface gravity waves and currents. To effectively analyse currents in a graph-search method, new equations are derived and validated against an analytical benchmark. A case study in the Atlantic Ocean is presented, focussing on a route from the Chesapeake Bay to the Mediterranean Sea and vice versa. Ocean analysis fields from data-assimilative models (for both ocean state and hydrodynamics) are used. The impact of waves and currents on transatlantic crossings is assessed through mapping of the spatial variability in the tracks, an analysis of their kinematics, and their impact on the Energy Efficiency Operational Indicator (EEOI) of the International Maritime Organization. Sailing with or against the main ocean current is distinguished. The seasonal dependence of the EEOI savings is evaluated, and greater savings with a higher intra-monthly variability during winter crossings are indicated in the case study. The total monthly mean savings are between 2 % and 12 %, while the contribution of ocean currents is between 1 % and 4 %. Several other ocean routes are also considered, providing a pan-Atlantic scenario assessment of the potential gains in energy efficiency from optimal tracks, linking them to regional meteo-oceanographic features.

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