Re: [swanmodel-users] Calculating maximum wave height, mean period and mean direction from spectral output

[Henrique R. <hra...@gm...>]

Thank you Raf,

Just a comment: the MetOcean wavespectra library is also open source.

Henrique

On Thu, 28 Oct 2021 at 13:56, Rafael Guedes via swanmodel-users <
swa...@li...> wrote:

> As an alternative you can use the open source version of that library
> supported and maintained by the creators and main developers:
>
> https://github.com/wavespectra/wavespectra
>
>
>
>
>
>
> On Wednesday, 27 October 2021, 07:09:23 pm NZDT, Henrique Rapizo <
> hra...@gm...> wrote:
>
>
> Hi Mahmud,
>
>
> You may be interested in our wavespectra library
> https://github.com/metocean/wavespectra
>
>
> You can read SWAN spectral files and readily estimate the parameters you
> want. I would recommend using the watershed method to obtain the wind-sea
> partition. However you can also split the spectra at a specified cut off
> frequency if you prefer.
>
>
> Please let me know if you find any issues with the library.
>
>
> Henrique
>
> On Wed, 27 Oct 2021 at 08:26, Mahmud-Ul-Hasan Monim <mha...@gm...>
> wrote:
>
> Hello SWAN users,
>
> I want to get some specific parameters (wind wave mean direction, swell
> mean direction and maximum Wave height) as SWAN output. As these parameters
> are not directly available from SWAN I wanted to process the spectral
> output to calculate these variables. I have the following questions -
>
> * As maximum wave height is a time domain parameter and cannot be
> determined from spectra, is there a rule of thumb to calculate it from
> other parameters?
>
> * Is there a formula I can use to calculate the total mean wave direction
> from spectra. If there is one, I can probably specify a period to split the
> spectra into wind and swell and then apply it to get the mean direction for
> both wind sea and swell.
>
> I would really appreciate it if you have any suggestions.
>
> Best,
>
> Mahmud
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