Setup and evaluation of a SWAN wind wave model for the Sea of Marmara

Kutupoğlu, Volkan; Çakmak, Recep Emre; Akpınar, Adem; Vledder, G.P. Van

doi:10.1016/j.oceaneng.2018.07.053

Cited by 44 publications

(19 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Despite the physical coherence showed by the code, a more detailed analysis indicates that SWAN code most of the time overestimated the significant heights of the waves (Figures 5 and 6), as well as in the work of Vieira et al (2020). Further results from the literature show that SWAN applications can either underestimate or overestimate wave amplitude within the same data series when compared to measured data (Moeini & Etemad-Shahidi, 2009;van der Westhuysen, 2010;Gorrell et al, 2011;Pallares et al, 2014;Mao et al, 2016;Lemke et al, 2017;Kutupoğlu et al, 2018;Hoque et al, 2020) obtained through different media or equipment -buoys, pressure sensors, capacitance probes, nonintrusive sensors, etc.…”

Section: Discussionmentioning

confidence: 90%

Meteorological-hydrodynamic model coupling for safe inland navigation of waterway stretches in dam reservoirs, using a scarce database

Mattosinho

Maciel

Ferreira

et al. 2022

RBRH

View full text Add to dashboard Cite

The SWAN (Simulating WAves Nearshore) numerical model has been used and validated in numerous studies of open coastal and estuarine regions. Its application on inland or restricted waters (dam reservoir) is not only innovative and challenging, but also an important scientific contribution, filling a gap in the literature. We analyze the performance of the SWAN in the characterization of the agitation caused by the action of wind waves in the reservoir of the Ilha Solteira dam, considering measured wind velocities and a complex bathymetry. The studied area is close to a segment of the Tietê-Paraná waterway, in Brazil. Wind conditions were obtained by a 2D sonic anemometer installed in the reservoir during one of the measurement campaigns, for a period of 3 months. The estimates of the amplitude of waves generated in the reservoir were compared with measurements of the free surface elevation obtained by a Druck pressure sensor installed in the reservoir of the dam, about 300 m from the margin (already in intermediate/deep waters), and 1.0 m deep. The results obtained (amplitudes and wave periods) were shown to be promising and, albeit with significative heights overestimated, could be used for engineering preliminary drafts.

show abstract

Section: Discussionmentioning

confidence: 90%

Meteorological-hydrodynamic model coupling for safe inland navigation of waterway stretches in dam reservoirs, using a scarce database

Mattosinho

Maciel

Ferreira

et al. 2022

RBRH

View full text Add to dashboard Cite

show abstract

“…4, c and in Table 2 show that the scattering index between the calculated and measured wave heights for variant V3 is 11 % less than for variant V2, and 20 % less than the scattering index obtained for variant V1. In the Sevastopol region, the scattering index 0.29, corresponds to variant V3, and in some cases does it better than in the other works [16,17,[26][27][28][29][30][31][32].…”

Section: Results Of the Model Tuningmentioning

confidence: 98%

Updated System for the Sea Wave Operational Forecast of the Black Sea Marine Forecasting Center

Ratner¹,

Fomin²,

Kholod³

et al. 2021

PhO

View full text Add to dashboard Cite

Purpose. The work is aimed at updating the sea wave forecasting system developed in the Black Sea Marine Forecasting Center by including the block of wind wave forecast in the Sevastopol region and by improving the wave forecast accuracy using the proposed procedure for the SWAN model tuning. Methods and Results. In the updated forecasting system, the possibility of performing the joint operational sea wave forecasts for the Black Sea and the Sevastopol region (with the 5 and 1 km spatial resolutions, respectively) became possible due to the nested grid method applied. To improve accuracy of the wave forecasts, the procedure for the SWAN model tuning was proposed. It is based on changing the parameterization of the surface friction coefficient Cd(V), where V is the surface wind speed. This permits to reduce the deviations of the forecasted wave heights from those obtained from the satellite altimetry measurements. Efficiency of the proposed procedure was assessed through comparison of the forecasting results with the remote sensing data. It is shown that in the forecasts supplied with an optimal choice of functional dependence Cd(V), the scattering index between the forecasted and measured values can be reduced by 20 %. Conclusions. Represented is the updated system of the Black Sea Marine Forecasting Center intended for the joint operational sea wave forecasts in the Black Sea and in the Sevastopol region. The results of model validation have shown that the procedure proposed for tuning the SWAN model makes it possible to reduce the deviations of the forecasted wave heights from those measured by the sensors installed at the altimetry satellites.

show abstract

“…The wind data are input to the SWAN model as a regular grid with a spatial resolution of 20 km and a temporal resolution of 1 h. At the open boundaries, the model is forced by wave parameter values from the ERA-5 dataset, interpolated along the boundary points at 1 h resolution. The ERA-5 data (and its predecessor ERA-Interim) are commonly used as boundary inputs to a number of coastal wave models (see, e.g., [37][38][39]) (a full description of the boundary input wave data from ERA-5 is given at [40] ). SWAN provides wave parameters at each time step to the D-Flow FM flow model and receives flow data in return.…”

Section: Guernseymentioning

confidence: 99%

Quantifying the Effects of Wave—Current Interactions on Tidal Energy Resource at Sites in the English Channel Using Coupled Numerical Simulations

et al. 2021

View full text Add to dashboard Cite

Numerical modeling of currents and waves is used throughout the marine energy industry for resource assessment. This study compared the output of numerical flow simulations run both as a standalone model and as a two-way coupled wave–current simulation. A regional coupled flow-wave model was established covering the English Channel using the Delft D-Flow 2D model coupled with a SWAN spectral wave model. Outputs were analyzed at three tidal energy sites: Alderney Race, Big Roussel (Guernsey), and PTEC (Isle of Wight). The difference in the power in the tidal flow between coupled and standalone model runs was strongly correlated to the relative direction of the waves and currents. The net difference between the coupled and standalone runs was less than 2.5%. However, when wave and current directions were aligned, the mean flow power was increased by up to 7%, whereas, when the directions were opposed, the mean flow power was reduced by as much as 9.6%. The D-Flow Flexible Mesh model incorporates the effects of waves into the flow calculations in three areas: Stokes drift, forcing by radiation stress gradients, and enhancement of the bed shear stress. Each of these mechanisms is discussed. Forcing from radiation stress gradients is shown to be the dominant mechanism affecting the flow conditions at the sites considered, primarily caused by dissipation of wave energy due to white-capping. Wave action is an important consideration at tidal energy sites. Although the net impact on the flow power was found to be small for the present sites, the effect is site specific and may be significant at sites with large wave exposure or strong asymmetry in the flow conditions and should thus be considered for detailed resource and engineering assessments.

show abstract

Setup and evaluation of a SWAN wind wave model for the Sea of Marmara

Cited by 44 publications

References 34 publications

Meteorological-hydrodynamic model coupling for safe inland navigation of waterway stretches in dam reservoirs, using a scarce database

Meteorological-hydrodynamic model coupling for safe inland navigation of waterway stretches in dam reservoirs, using a scarce database

Updated System for the Sea Wave Operational Forecast of the Black Sea Marine Forecasting Center

Quantifying the Effects of Wave—Current Interactions on Tidal Energy Resource at Sites in the English Channel Using Coupled Numerical Simulations

Contact Info

Product

Resources

About