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.

Args:

• spectrum (2darray): Wave spectrum array with shape (nf, nd).

• spectrum_smooth (2darray): Smoothed wave spectrum array with shape (nf, nd).

• freq (1darray): Wave frequency array with shape (nf).

• dir (1darray): Wave direction array with shape (nd).

• wspd (float): Wind speed.

• wdir (float): Wind direction.

• dpt (float): Water depth.

• agefac (float): Age factor.

• wscut (float): Wind sea fraction cutoff.

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

• ihmax (int): Number of discrete spectral levels in WW3 Watershed code.

Returns:

• specpart (3darray): Wave spectrum partitions sorted in decreasing order of Hs with shape (np, nf, nd).

Note:

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