[MITgcm-support] Tidal phase in obcs_add_tides

[Richet, Oceane (O&A, Hobart)]

Hello everyone,


I am implementing the tides at the boundaries of my regional domain and I am wondering what is exactly the tidal phase that I have to put in input. I know that this tidal phase is in second in the MITgcm but what I am trying to figure out is, in the case of the tpxo data, what are the corrections that I have to apply to the tpxo tidal phase. The phase is already in degree GMT but do I have to apply a nodal correction (and also on the amplitude?)? Does the input phase in the MITgcm correspond to the Greenwich phase lag (difference between the astronomical argument and the observed phase - this is what I saw in a previous study)? I am a bit confused by all the things that I read and I would like to clarify this point.


Thank you!


Océane
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