Estimation of offshore extreme wind from wind-wave coupled modeling

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

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Estimation of offshore extreme wind from wind-wave coupled modeling. / Larsén, Xiaoli Guo; Du, Jianting; Bolaños, Rodolfo; Imberger, Marc; Kelly, Mark C.; Badger, Merete; Larsen, Søren.

In: Wind Energy, Vol. 22, No. 8, 2019, p. 1043-1057.

Research output: Contribution to journalJournal article – Annual report year: 2019Researchpeer-review

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@article{12ab99f8d5ae4323a8a8fc586612dc65,
title = "Estimation of offshore extreme wind from wind-wave coupled modeling",
abstract = "A coupledwind-wave modeling system is used to simulate 23 years of storms and estimate offshore extreme wind statistics. In this system, the atmospheric Weather Research and Forecasting (WRF) model and Spectral Wave model for Near shore (SWAN) are coupled, through a wave boundary layer model (WBLM) that is implemented in SWAN. The WBLM calculates momentum and turbulence kinetic energy budgets, using them to transfer wave-induced stress to the atmospheric modeling. While such coupling has a trivial impact on the wind modeling for 10-m wind speeds less than 20 ms −1 , the effect becomes appreciable for stronger winds—both compared with uncoupled WRF modeling and with standard parameterization schemes for roughness length. The coupled modeling output is shown to be satisfactory compared with measurements, in terms of the distribution of surface-drag coefficient with wind speed. The coupling is also shown to be important for estimation of extreme winds offshore, where the WBLM-coupled results match observations better than results from noncoupled modeling, as supported by measurements from a number of stations.",
keywords = "50-year wind, Extreme wind, Offshore, Wind-wave coupled modeling",
author = "Lars{\'e}n, {Xiaoli Guo} and Jianting Du and Rodolfo Bola{\~n}os and Marc Imberger and Kelly, {Mark C.} and Merete Badger and S{\o}ren Larsen",
year = "2019",
doi = "10.1002/we.2339",
language = "English",
volume = "22",
pages = "1043--1057",
journal = "Wind Energy",
issn = "1095-4244",
publisher = "JohnWiley & Sons Ltd.",
number = "8",

}

RIS

TY - JOUR

T1 - Estimation of offshore extreme wind from wind-wave coupled modeling

AU - Larsén, Xiaoli Guo

AU - Du, Jianting

AU - Bolaños, Rodolfo

AU - Imberger, Marc

AU - Kelly, Mark C.

AU - Badger, Merete

AU - Larsen, Søren

PY - 2019

Y1 - 2019

N2 - A coupledwind-wave modeling system is used to simulate 23 years of storms and estimate offshore extreme wind statistics. In this system, the atmospheric Weather Research and Forecasting (WRF) model and Spectral Wave model for Near shore (SWAN) are coupled, through a wave boundary layer model (WBLM) that is implemented in SWAN. The WBLM calculates momentum and turbulence kinetic energy budgets, using them to transfer wave-induced stress to the atmospheric modeling. While such coupling has a trivial impact on the wind modeling for 10-m wind speeds less than 20 ms −1 , the effect becomes appreciable for stronger winds—both compared with uncoupled WRF modeling and with standard parameterization schemes for roughness length. The coupled modeling output is shown to be satisfactory compared with measurements, in terms of the distribution of surface-drag coefficient with wind speed. The coupling is also shown to be important for estimation of extreme winds offshore, where the WBLM-coupled results match observations better than results from noncoupled modeling, as supported by measurements from a number of stations.

AB - A coupledwind-wave modeling system is used to simulate 23 years of storms and estimate offshore extreme wind statistics. In this system, the atmospheric Weather Research and Forecasting (WRF) model and Spectral Wave model for Near shore (SWAN) are coupled, through a wave boundary layer model (WBLM) that is implemented in SWAN. The WBLM calculates momentum and turbulence kinetic energy budgets, using them to transfer wave-induced stress to the atmospheric modeling. While such coupling has a trivial impact on the wind modeling for 10-m wind speeds less than 20 ms −1 , the effect becomes appreciable for stronger winds—both compared with uncoupled WRF modeling and with standard parameterization schemes for roughness length. The coupled modeling output is shown to be satisfactory compared with measurements, in terms of the distribution of surface-drag coefficient with wind speed. The coupling is also shown to be important for estimation of extreme winds offshore, where the WBLM-coupled results match observations better than results from noncoupled modeling, as supported by measurements from a number of stations.

KW - 50-year wind

KW - Extreme wind

KW - Offshore

KW - Wind-wave coupled modeling

U2 - 10.1002/we.2339

DO - 10.1002/we.2339

M3 - Journal article

VL - 22

SP - 1043

EP - 1057

JO - Wind Energy

JF - Wind Energy

SN - 1095-4244

IS - 8

ER -