A unified spectral parameterization for wave breaking: From the deep ocean to the surf zone

Filipot, Jean-François; Ardhuin, Fabrice

doi:10.1029/2011jc007784

Cited by 32 publications

(41 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The largest random errors are found in semienclosed basins, usually associated with low biases. This is partly the result of larger wind errors there but is also associated with a low bias at short fetch in the TEST451 parameterizations, already documented by Ardhuin et al (2010) and Filipot and Ardhuin (2012).…”

Section: Improvement Of Wave Heights With the New Parameterizationmentioning

confidence: 66%

“…Most of the wind energy input to surface waves is dissipated by wave breaking, which likely represents the dominant source of turbulent kinetic energy (TKE) in the first few meters below the surface (Terray et al, 1996;Gemmrich et al, 2008). Direct measurements of the energy flux from waves to ocean U oc are difficult, thus diagnostics from a realistic wave model might help to estimate that flux, especially at global scale.…”

Section: Production Of Turbulence By Wave Breakingmentioning

confidence: 99%

See 1 more Smart Citation

A global wave parameter database for geophysical applications. Part 2: Model validation with improved source term parameterization

2013

View full text Add to dashboard Cite

a b s t r a c tA multi-scale global hindcast of ocean waves is presented that covers the years 1994-2012, based on recently published parameterizations for wind sea and swell dissipation [, Aouf, L., Collard, F., 2010. Semi-empirical dissipation source functions for wind-wave models: Part I. Definition, calibration and validation. J. Phys. Oceanogr. 40 (9), 1917Oceanogr. 40 (9), -1941. Results from this hindcast include traditional wave parameters, like the significant wave height and mean periods, and we particularly consider the accuracy of the results for phenomenal sea states, with significant heights above 14 m. Using unbiased winds, there is no evidence of a bias in wave heights even for this very high range. Various spectral moments were also validated, including the surface Stokes drift and mean square slopes that are relevant for wave-current interactions modelling and remote sensing, and also spectra of seismic noise sources. The estimation of these parameters is made more accurate by the new wave growth and dissipation parameterizations. Associated air-sea fluxes of momentum and energy are significantly different from what is obtained with the WAM-Cycle 4 parameterization, with a roughness that is practically a function of wind speed only. That particular output of the model does not appear very realistic and will require future adjustments of the generation and dissipation parameterizations.

show abstract

Section: Improvement Of Wave Heights With the New Parameterizationmentioning

confidence: 66%

Section: Production Of Turbulence By Wave Breakingmentioning

confidence: 99%

A global wave parameter database for geophysical applications. Part 2: Model validation with improved source term parameterization

2013

View full text Add to dashboard Cite

show abstract

“… Stiassnie [2012]offered a new analytical solution for the old problem of fetch‐limited wave evolution. A new dissipation term for spectral wave models, capable of describing the dissipation in the general case, from deep water all the way to surf zone was suggested by Filipot and Ardhuin [2012]. Badulin and Grigorieva [2012]investigated the traditional topic of separation of swell and wind seas, and suggested criteria based on the theoretical concept of self‐similar wind‐driven wavefields.…”

Section: Discussionmentioning

confidence: 99%

Surface waves and wave‐coupled effects in lower atmosphere and upper ocean

Babanin

Onorato

2012

J. Geophys. Res.

View full text Add to dashboard Cite

The article introduces the Special Issue of the Journal of Geophysical Research– Oceans which is based on the papers presented at or related to the new session of the General Assembly of the European Geosciences Union, first conducted in 2011. Topic of the session on the Surface Waves and Wave‐Coupled Effects highlights a new dimension of the present state of wind‐wave research. The surface waves is an important oceanographic topic in its own right, but it is also rapidly becoming clear that many large‐scale geophysical processes are essentially coupled with the surface waves, and those include climate, weather, tropical cyclones and other phenomena in the atmosphere and many issues of the upper‐ocean mixing below the interface.

show abstract

“…An alternative breaking formulation (Filipot and Ardhuin, 2012) based on a bore model uses a dissipation rate per unit crest length of…”

Section: A3 Ardhuin (2010) Source Term Package 20mentioning

confidence: 99%

Automated model optimisation using the Cylc workflow engine (Cyclops v1.0)

Gorman¹

2017

Preprint

View full text Add to dashboard Cite

Abstract. Most geophysical models include a number of parameters that are not fully determined by theory, and can be 'tuned' to improve the model's agreement with available data. We might attempt to automate this tuning process in an objective way 10 by employing an optimisation algorithm to find the set of parameters that minimises a cost function derived from comparing model outputs with measurements. A number of algorithms are available for solving optimisation problems, in various programming languages, but interfacing such software to a complex geophysical model simulation, presents certain challenges.To tackle this problem, we have developed an optimisation suite ("Cyclops") based on the Cylc workflow engine (http://cylc.github.io/cylc/ and https://zenodo.org/badge/latestdoi/1836229) that implements a wide selection of optimisation 15 algorithms from the NLopt python toolbox (Johnson, 2014). The Cyclops optimisation suite can be used to calibrate any modelling system that has itself been implemented as a (separate) Cylc model suite, provided it includes computation and output of the desired scalar cost function. A growing number of institutions are using Cylc to orchestrate complex distributed suites of interdependent cycling tasks within their operational forecast systems, and in such cases application of the optimisation suite is particularly straightforward. 20As a test case, we applied the Cyclops to calibrate a global implementation of the Wavewatch III™ (v4.18) third generation spectral wave model, forced by ERA-Interim input fields. This was calibrated over a one-year period (1997), before applying the calibrated model to a full wave hindcast. The chosen error metric was the spatial average of the root-meansquare error of hindcast significant wave height compared with collocated altimeter records. We describe the results of a calibration in which up to 19 parameters were optimised. 25

show abstract

A unified spectral parameterization for wave breaking: From the deep ocean to the surf zone

Cited by 32 publications

References 59 publications

A global wave parameter database for geophysical applications. Part 2: Model validation with improved source term parameterization

A global wave parameter database for geophysical applications. Part 2: Model validation with improved source term parameterization

Surface waves and wave‐coupled effects in lower atmosphere and upper ocean

Automated model optimisation using the Cylc workflow engine (Cyclops v1.0)

Contact Info

Product

Resources

About