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Sea state trends and variability: consistency between models, altimeters, buoys, and seismic data (1979‐2016) 5
Stopa, Justin; Ardhuin, Fabrice; Stutzmann, Eleonore; Lecocq, Thomas.
Wave hindcasts of long time series (> 30 years) have been instrumental in understanding the wave climate. However it is still difficult to have a consistent reanalysis suitable for study of trends and inter‐annual variability. Here we explore the consistency of a wave hindcast with independent observations from moored buoys, satellite altimeters, and seismic data. We use the Climate Forecast System Reanalysis (CFSR) winds to drive a wave model since extreme events are generally well captured. Unfortunately the original CFSR winds are not homogeneous in time. We systematically modify this wind field in time and space to produce a wave field that has homogeneous differences against the Globwave/SeaStateCCI altimeter wave height database. These corrections...
Tipo: Text Palavras-chave: Wave hindcasting; COWCLIP; Seismic noise; Long-term trends; Climate Forecast System Reanalysis; Data homogeneity.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00490/60181/63522.pdf
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Comparison and validation of physical wave parameterizations in spectral wave models 5
Stopa, Justin; Ardhuin, Fabrice; Babanin, Alexander; Zieger, Stefan.
Recent developments in the physical parameterizations available in spectral wave models have already been validated, but there is little information on their relative performance especially with focus on the higher order spectral moments and wave partitions. This study concentrates on documenting their strengths and limitations using satellite measurements, buoy spectra, and a comparison between the different models. It is confirmed that all models perform well in terms of significant wave heights; however higher-order moments have larger errors. The partition wave quantities perform well in terms of direction and frequency but the magnitude and directional spread typically have larger discrepancies. The high-frequency tail is examined through the mean...
Tipo: Text Palavras-chave: WAVEWATCH III; Spectral wave modeling; Wave hindcasting; Source terms; Higher order wave moments; Swell dissipation.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00280/39122/38300.pdf
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