A Julia package for fitting parametric spectral wave models to recorded time series using Whittle and debiased Whittle likelihood inference. This package extends the functionality of WhittleLikelihoodInference.jl to include models for ocean waves.
Includes the following models:
- JONSWAP: the JONSWAP spectra for vertical displacement,
- JS_BWG_HNE: a model for the heave, northwards and eastwards displacement of a particle on the water surface when the waves have a JONSWAP marginal spectral density function and bimodal wrapped Gaussian spreading function.
- JS_BWG_HNE_DL: a depth limited version of JS_BWG_HNE.
- JS_WG_HNE_DL: similar to JS_BWG_HNE_DL but with a single wrapped Gaussian spreading function (designed for swell modelling).
Sykulski, A.M., Olhede, S.C., Guillaumin, A.P., Lilly, J.M., Early, J.J. (2019). The debiased Whittle likelihood. Biometrika 106 (2), 251–266.
Grainger, J. P., Sykulski, A. M., Jonathan, P., and Ewans, K. (2021). Estimating the parameters of ocean wave spectra. Ocean Engineering, 229:108934.
Hasselmann, K., Barnett, T., Bouws, E., Carlson, H., Cartwright, D., Enke, K., Ewing, J., Gienapp, H., Hasselmann, D., Kruseman, P., Meerburg, A., M ̈uller, P., Olbers, D., Richter, K., Sell, W., and Walden, H. (1973). Measurements of wind-wave growth and swell decay during the Joint North Sea Wave Project (JONSWAP). Erg ̈anzungsheft 8-12.
Ewans, K. C. (1998). Observations of the directional spectrum of fetch-limited waves. Journal of Physical Oceanography, 28:495–512.