Search found 13 matches

by tao
Wed Feb 19, 2025 10:02 am
Forum: ROMS Discussion
Topic: The residual current is inconsistent after adding the tide
Replies: 6
Views: 6207

Re: The residual current is inconsistent after adding the tide

Thanks to MoeinDst for the index and wilkin for your patient explanation, you really helped me a lot. :D

I chose to modify my tide input file to keep only the values for the boundary grid points and set all the data for the internal points to 0. Everything looked much better, except for the tide ...
by tao
Mon Feb 17, 2025 3:33 am
Forum: ROMS Discussion
Topic: The residual current is inconsistent after adding the tide
Replies: 6
Views: 6207

Re: The residual current is inconsistent after adding the tide

Hi everyone, after some time, I'm back with a question.
The descriptions of SSH_TIDE and UV_TIDE say that tidal Forcing is added just on the open boundaries, but my tidal forcing file has tidal Data at every grid point, as does the data in \src\Data\ROMS\Forcing\test_head_frc.nc, which really ...
by tao
Thu Feb 06, 2025 2:05 am
Forum: ROMS Discussion
Topic: The residual current is inconsistent after adding the tide
Replies: 6
Views: 6207

Re: The residual current is inconsistent after adding the tide

I have a question whether the fact that I used HYCOM's hourly reanalysis data to generate my boundary file, which includes UV, Ubar, and Vbar data, means that my model calculated two tidal forcing
by tao
Tue Feb 04, 2025 8:24 am
Forum: ROMS Discussion
Topic: The residual current is inconsistent after adding the tide
Replies: 6
Views: 6207

The residual current is inconsistent after adding the tide

I added tides to my model. The tide data comes from TPXO9_v5, and I used otps2frc(https://github.com/NakamuraTakashi/ROMS_prep/blob/master/OTPS/mfile/otps2frc_wrapper_tpxo9_atlas30.m) to generate the NETCDF file.

With the addition of tides, my currents are significantly skewed. Here are three ...
by tao
Wed Dec 11, 2024 2:23 am
Forum: ROMS Discussion
Topic: My model's Kuroshio is gone
Replies: 7
Views: 7076

Re: My model's Kuroshio is gone

Dear jcwarner, thank you very much for your helpful explanation. However, this vortex is still bothering me, as it still exists when I set the OBCFAC to 10 or 100, albeit not as noticeably.

Thank you for your suggestion, JH. I will follow your advice and run the model. I sincerely appreciate the ...
by tao
Tue Dec 10, 2024 5:19 am
Forum: ROMS Discussion
Topic: My model's Kuroshio is gone
Replies: 7
Views: 7076

Re: My model's Kuroshio is gone

I checked the previous experiment and found that after I changed the value of obcfac to 0, my model had an unexplained vortex in eastern Taiwan. In fact, in most of my other experiments, similar vortexes were present, with a strong current moving south along eastern Taiwan, while the northbound ...
by tao
Tue Dec 10, 2024 2:08 am
Forum: ROMS Discussion
Topic: My model's Kuroshio is gone
Replies: 7
Views: 7076

Re: My model's Kuroshio is gone

Dear jcwarner, thank you very much for your advice. I will go back and try to modify the relevant parameters.
My initial file contains current, all from hycom
by tao
Mon Dec 09, 2024 2:50 am
Forum: ROMS Discussion
Topic: My model's Kuroshio is gone
Replies: 7
Views: 7076

Re: My model's Kuroshio is gone

Many days passed, but I still couldn't solve the problem, and Kuroshio still didn't show up in my model.
I tried to modify the relevant parameters of obcfac and TNUDG, changing obcfac to 10 and the latter to 3 days, but the result was even worse, there was a strong southward flow field on the ...
by tao
Sun Dec 01, 2024 8:52 am
Forum: ROMS Discussion
Topic: My model's Kuroshio is gone
Replies: 7
Views: 7076

My model's Kuroshio is gone

After three months of operation, my model had this problem. As shown in the picture, it lacked the Kuroshio flow from Taiwan Island to the Philippines, which caused a large amount of warm current to flow into the southern waters of Indo-China Peninsula. I want to know how to solve this problem ...
by tao
Thu Nov 28, 2024 6:53 am
Forum: ROMS Discussion
Topic: The tide level of my model does not match TPXO9
Replies: 1
Views: 4064

The tide level of my model does not match TPXO9

I used the data from TPXO9 to generate a tidal forcing file. I defined the following cpp option and ran it for 90 days. There is a big deviation between the tidal level change of the site and the forecast data of TPXO9. Could someone please help me find out what the problem is? Appreciate any ...
by tao
Thu Nov 28, 2024 6:45 am
Forum: ROMS Discussion
Topic: About the component tides of the output file
Replies: 2
Views: 4371

Re: About the component tides of the output file


Hello. I've never used this module before, so I don't know what kind of variables are saved as output. But if the output file gives information enough, you can apply a simple harmonic analysis. Some good packages in Matlab and python were developed to make harmonic analyses and even predictions ...
by tao
Wed Nov 27, 2024 1:50 am
Forum: ROMS Discussion
Topic: Error in simulation and results Request help
Replies: 0
Views: 4093

Error in simulation and results Request help

Hi everyone, I ran my model and compared the resulting temperature and salinity to the HYCOM data and found that the deviation was increasing over time. I don't know how to solve this problem :( , here are my cpp options, with my script file attached.

Appreciate any suggestions

#define PERFECT ...
by tao
Sun Nov 03, 2024 10:27 am
Forum: ROMS Discussion
Topic: About the component tides of the output file
Replies: 2
Views: 4371

About the component tides of the output file

Hello, everyone. I have a problem. I use AVERAGES DETIDE to obtain simulated tidal data. Now I generate roms_his and roms_har files, but I don't know how to obtain the amplitude and phase of each component tide :cry: . Is there any tool that can help me?
thanks for any suggest.