Impact of the interfaces for wind and wave modeling - interpretation using COAWST, SAR and point measurements

Xiaoli Guo Larsén (Author), Jianting Du (Author), Rodolfo Bolanos (Author), Merete Badger (Author), Søren Ejling Larsen (Author), Mark C. Kelly (Author)

Research output: Non-textual formSound/Visual production (digital)Research

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Abstract

Air and sea interacts, where winds generate waves and waves affect the winds. This topic is ever relevant for offshore functions such as shipping, portal routines, wind farm operation and maintenance. In a coupled modeling system, the atmospheric modeling and the wave modeling interfere with each other through an interface. In most modeling system the interface is described through the roughness length. The roughness length is parameterized with the basic idea of the Charnock formulation while the coefficients could be functions of simply wind speed, or wave parameters. More advanced interfaces use the stress directly, thus avoiding the uncertainties caused by parameterizations. This study examines the efficiency of the wave impact transfer to the atmospheric modeling through the two types of interfaces, roughness length and stress, through the coupled-ocean-atmosphere-wave-sediment-transport (COAWST) modeling system. The roughness length has been calculated using seven schemes (Charnock, Fan, Oost, Drennen, Liu, Andreas, Taylor-Yelland). The stress approach is applied through a wave boundary layer model in SWAN. The experiments are done to a case where the Synthetic Aperture Radar (SAR) image shows the wind field affected by the coastal wave field. Point measurements from Horns Rev are used for data analysis and validation.
Original languageEnglish
Publication date2017
Publication statusPublished - 2017
Event19th EGU General Assembly - Vienna, Austria
Duration: 23 Apr 201728 Apr 2017
http://www.egu2017.eu/

Conference

Conference19th EGU General Assembly
CountryAustria
CityVienna
Period23/04/201728/04/2017
Internet address

Cite this

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title = "Impact of the interfaces for wind and wave modeling - interpretation using COAWST, SAR and point measurements",
abstract = "Air and sea interacts, where winds generate waves and waves affect the winds. This topic is ever relevant for offshore functions such as shipping, portal routines, wind farm operation and maintenance. In a coupled modeling system, the atmospheric modeling and the wave modeling interfere with each other through an interface. In most modeling system the interface is described through the roughness length. The roughness length is parameterized with the basic idea of the Charnock formulation while the coefficients could be functions of simply wind speed, or wave parameters. More advanced interfaces use the stress directly, thus avoiding the uncertainties caused by parameterizations. This study examines the efficiency of the wave impact transfer to the atmospheric modeling through the two types of interfaces, roughness length and stress, through the coupled-ocean-atmosphere-wave-sediment-transport (COAWST) modeling system. The roughness length has been calculated using seven schemes (Charnock, Fan, Oost, Drennen, Liu, Andreas, Taylor-Yelland). The stress approach is applied through a wave boundary layer model in SWAN. The experiments are done to a case where the Synthetic Aperture Radar (SAR) image shows the wind field affected by the coastal wave field. Point measurements from Horns Rev are used for data analysis and validation.",
author = "Lars{\'e}n, {Xiaoli Guo} and Jianting Du and Rodolfo Bolanos and Merete Badger and Larsen, {S{\o}ren Ejling} and Kelly, {Mark C.}",
year = "2017",
language = "English",

}

Impact of the interfaces for wind and wave modeling - interpretation using COAWST, SAR and point measurements. Larsén, Xiaoli Guo (Author); Du, Jianting (Author); Bolanos, Rodolfo (Author); Badger, Merete (Author); Larsen, Søren Ejling (Author); Kelly, Mark C. (Author). 2017. Event: 19th EGU General Assembly, Vienna, Austria.

Research output: Non-textual formSound/Visual production (digital)Research

TY - ADVS

T1 - Impact of the interfaces for wind and wave modeling - interpretation using COAWST, SAR and point measurements

A2 - Larsén, Xiaoli Guo

A2 - Du, Jianting

A2 - Bolanos, Rodolfo

A2 - Badger, Merete

A2 - Larsen, Søren Ejling

A2 - Kelly, Mark C.

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AB - Air and sea interacts, where winds generate waves and waves affect the winds. This topic is ever relevant for offshore functions such as shipping, portal routines, wind farm operation and maintenance. In a coupled modeling system, the atmospheric modeling and the wave modeling interfere with each other through an interface. In most modeling system the interface is described through the roughness length. The roughness length is parameterized with the basic idea of the Charnock formulation while the coefficients could be functions of simply wind speed, or wave parameters. More advanced interfaces use the stress directly, thus avoiding the uncertainties caused by parameterizations. This study examines the efficiency of the wave impact transfer to the atmospheric modeling through the two types of interfaces, roughness length and stress, through the coupled-ocean-atmosphere-wave-sediment-transport (COAWST) modeling system. The roughness length has been calculated using seven schemes (Charnock, Fan, Oost, Drennen, Liu, Andreas, Taylor-Yelland). The stress approach is applied through a wave boundary layer model in SWAN. The experiments are done to a case where the Synthetic Aperture Radar (SAR) image shows the wind field affected by the coastal wave field. Point measurements from Horns Rev are used for data analysis and validation.

M3 - Sound/Visual production (digital)

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