wavespectra.partition.partition.np_ptm1

wavespectra.partition.partition.np_ptm1(spectrum, spectrum_smooth, freq, dir, wspd, wdir, dpt, agefac=1.7, wscut=0.3333, swells=3, ihmax=100)

PTM1 spectra partitioning on numpy arrays.

Parameters:

• spectrum (-) – Wave spectrum array with shape (nf, nd).

• spectrum_smooth (-) – Smoothed wave spectrum array with shape (nf, nd).

• freq (-) – Wave frequency array with shape (nf).

• dir (-) – Wave direction array with shape (nd).

• wspd (-) – Wind speed.

• wdir (-) – Wind direction.

• dpt (-) – Water depth.

• agefac (-) – Age factor.

• wscut (-) – Wind sea fraction cutoff.

• swells (-) – Number of swell partitions to compute, all detected if None.

• ihmax (-) – Number of discrete spectral levels in WW3 Watershed code.

Returns:

Wave spectrum partitions sorted in decreasing order of Hs

with shape (np, nf, nd).

Return type:

• specpart (3darray)

Note

• The smooth spectrum spectrum_smooth is used to define the watershed boundaries which are applied to the original spectrum.