2018
DOI: 10.1061/(asce)ww.1943-5460.0000419
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Sensitivity of Storm Surge Predictions to Atmospheric Forcing during Hurricane Isaac

Abstract: Storm surge and overland flooding can be predicted with computational models at high levels of resolution. To improve efficiency in forecasting applications, surge models often use atmospheric forcing from parametric vortex models, which represent the surface pressures and wind fields with a few storm parameters. The future of storm surge prediction could involve real-time coupling of surge and full-physics atmospheric models; thus, their accuracies must be understood in a real hurricane scenario. The authors … Show more

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Cited by 58 publications
(50 citation statements)
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“…It is designed as a multimodel system with the flexibility of exchanging individual model components for the atmosphere, waves, ocean, land, and sea ice. The model has been used to study the role of Stokes drift in surface transport (Curcic et al, ), the impacts of coupling on boundary layer structure (Zhu et al, ) and storm surge prediction (Dietrich et al, ) in Hurricane Isaac in 2012, and the influence of atmospheric forcing on the transport in the GoM on diurnal and seasonal scales (Judt et al, ). Here, the system consists of fully coupled atmosphere, surface wave, and ocean circulation models.…”
Section: Methodsmentioning
confidence: 99%
“…It is designed as a multimodel system with the flexibility of exchanging individual model components for the atmosphere, waves, ocean, land, and sea ice. The model has been used to study the role of Stokes drift in surface transport (Curcic et al, ), the impacts of coupling on boundary layer structure (Zhu et al, ) and storm surge prediction (Dietrich et al, ) in Hurricane Isaac in 2012, and the influence of atmospheric forcing on the transport in the GoM on diurnal and seasonal scales (Judt et al, ). Here, the system consists of fully coupled atmosphere, surface wave, and ocean circulation models.…”
Section: Methodsmentioning
confidence: 99%
“…In general, parametric wind models approximate the surface wind field as the sum of the background wind speed of the atmosphere, V b , and the axisymmetric wind speed, V, of the storm. The definition used for each of these components differentiates various parametric wind field models that have been developed, e.g., [13,16,23,24]. In the SLOSH model, the background wind field is modeled as a radially variable fraction of the storm's translational speed, V s , and the axisymmetric wind profile is modeled as a radially variable fraction of the storm's maximum wind speed, V max .…”
Section: Introductionmentioning
confidence: 99%
“…Atmospheric forcing is the principal driver of storm surge [10,11]. In storm surge models, atmospheric forcing is provided in the form of surface pressure and near-surface wind fields from various sources and configurations.…”
Section: Introductionmentioning
confidence: 99%
“…The parameters needed for implementation in the parametric vortex model include the storm location, minimum central pressure, maximum wind velocity and radius of maximum winds [10,11]. These parameters are available as part of the National Hurricane Center (NHC) forecast advisories issued every 6 h throughout the storm's lifetime.…”
Section: Introductionmentioning
confidence: 99%
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