What's the "TUV"?

[liu-ran]

https://github.com/MITgcm/MITgcm/blob/b038e3cc4f8e1c3302a0982180491e91f183c00f/utils/matlab/cs_grid/uvcube2latlon.m#L58C9-L58C9

Hi, What's the data in "TUV"?

[jm-c]

few comments:

1. I found one TUV.mat here: https://github.com/MITgcm/MITgcm/blob/master/verification/solid-body.cs-32x32x1/input/TUV.mat but this might not be very helpful.
2. Using this "TUV.mat" to get the rotation angle between the model grid and the E-W, N_S direction is no longer the prefered method since this rotation angle has been written to output file AngleCS and AngleSN for some time.
3. using "TUV.mat" is only one option for this matlab script uvcube2latlon.m to work (but unfortunately, it's the default option !) so you could use the alternative option by providing arguments cosalpha and sinalpha .
4. It's time for some cleaning and improvement of this set of matlab script in utils/matlab/cs_grid/, as summarized in issue Wish list: improvements to utils/matlab/cs_grid routines and cs/llc-related MITgcm doc #791

[liu-ran]

Thank you very much for your great knowledge! @jm-c

[jm-c]

I think this isssue can be closed now.