fix ocean mapping

[rhaegar325]

Update CMIP6 Variable Definitions: Standardize Dimension Format and Add CF Compliance Field

Key Changes

1. Dimension Format

   • Changed from ["time", "st_ocean", "yt_ocean", "xt_ocean"]
   • To {"time": "time", "st_ocean": "lev", "yt_ocean": "latitude", "xt_ocean": "longitude"}

2. Standard Mappings

   • st_ocean/sw_ocean → lev
   • yt_ocean/yu_ocean/grid_yu_ocean → latitude
   • xt_ocean/xu_ocean/grid_xt_ocean → longitude

Hint

Although our current Ocean Cmoriser does not use the dimensions specified in the mapping, I have still fixed it in case it is needed in the future and to help verify the correctness of variable dimensions.

[codecov]

Codecov Report

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Additional details and impacted files

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