issues: 1128759050

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
1128759050 I_kwDOAMm_X85DR38K 6259 Be able to override calendar in `open_dataset`/`open_mfdataset`/etc OR include another calendar name 3487237 open 0     6 2022-02-09T16:25:24Z 2024-02-12T15:28:15Z   NONE      

Is your feature request related to a problem?

I think there was a version of ROMS in which the calendar was written as "gregorian_proleptic" instead of "proleptic_gregorian". Only the latter is checked for by xarray for valid calendar names. This unfortunately keeps coming up when I need to deal with model output from such ROMS simulations. I personally am using catalogs to access model output (e.g., intake, stac), making it so I need to be able to provide flags to the open_* command in order to be able to read in the model output from the catalog (i.e. rather than being able to run a command afterward to, say, overwrite the calendar with the correct name).

Describe the solution you'd like

I would like to either: 1. include "gregorian_proleptic" on the known list of calendars, or 2. be able to provide a keyword argument to the "open_*" commands to declare the calendar I want to use, overwriting what is in the file metadata.

Describe alternatives you've considered

I have used decode_times=False in this situation before and then sort of forced the datetimes into submission, but that solution won't work with a catalog setup in which all the necessary keywords to open the file(s) need to be in catalog entry.

Additional context

This code demonstrates the issue: import xarray as xr url = 'https://www.ncei.noaa.gov/thredds/dodsC/model-cbofs-files/2020/02/nos.cbofs.fields.n006.20200208.t18z.nc' ds = xr.open_dataset(url, drop_variables=['dstart'])

 
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     13221727 issue

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