NaN from WWM

[EmilioEchevarria]

Hi all,

I've been running some SCHISM-WWMIII simulations using spectral wave boundary conditions. I'm now trying a different wave bnd conditions file, created reconstructing the wave spectra from integrated parameters. I keep getting this error:

26: ABORT: NaN from WWM: 11983.4101562500 NaN NaN

Anyone know why am I getting this or how to fix it? I spent the past couple of days inspecting and playing around with the wave bnd conditions file, and I can't see anything wrong with it... Obviously there are not NaN or Inf values in it. msc(2) and mdc(2) match the number of frequencies and directions in the file. The spectra look reasonable to me, and similar to those I was getting when using the previous wave bnd file.

Any help will be greatly appreciated!

Cheers,
Emilio

[Yanjiao-Li]

Hi!

I'm having the same problem as you, can you please solve it? This question has been bothering me for months.

Thank you very much for your answer!❤

Best regards
Yanjiao

[josephzhang8]

If the run crashes at the start, it may be because you need to remove fort.* in the dir where hgrid.gr3 is. I've added this in the manual.

[Yanjiao-Li]

Thank you very much for your answer！

But after I removed it, it still shows sum2 as the NaN value, is there any other reasons?

And when I change the icou_elfe_wwm to 2 (elevation and currents in wwm, no wave force in SCHISM), the model can be calculated.

For the WWM module, I'm only given these three mandatory files: wwminput.nml, wwmbnd.gr3, hgrid_WWM.gr3.

Best regards

[Yanjiao-Li]

[josephzhang8]

Unfortunately, the reason may be diverse, all related to your WWM setup.

[EmilioEchevarria]

Hi @Yanjiao-Li maybe this is helpful? Also, I imagine the wave boundary conditions file (FILEWAVE) should have a specific order of dimensions (e.g., time, station, frequency, direction)?

[josephzhang8]

Thx @EmilioEchevarria. If your case can run without error with the fix, you can issue a PR.