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[Doc]: Issue opening up ESGF datasets hosted on LLNL servers via OPeNDAP  #675

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@tomvothecoder

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@tomvothecoder

Describe your documentation update

There is an issue opening up ESGF datasets from LLNL nodes that is probably affecting all of our gallery documentation.

I think this might have to do with the THREDDS catalog being disabled? Although it was working fine recently until today, and HTTP downloads still work fine.

MVCE

import xcdat as xc

dpath = "https://esgf-data1.llnl.gov/thredds/dodsC/css03_data/CMIP6/CMIP/CSIRO/ACCESS-ESM1-5/historical/r10i1p1f1/Amon/tas/gn/v20200605/tas_Amon_ACCESS-ESM1-5_historical_r10i1p1f1_gn_185001-201412.nc"

xc.open_dataset(dpath)

Log

syntax error, unexpected WORD_WORD, expecting SCAN_ATTR or SCAN_DATASET or SCAN_ERROR
context: 404^ page not found

...

OSError: [Errno -90] NetCDF: file not found: 'https://esgf-data1.llnl.gov/thredds/dodsC/css03_data/CMIP6/CMIP/CSIRO/ACCESS-ESM1-5/historical/r10i1p1f1/Amon/tas/gn/v20200605/tas_Amon_ACCESS-ESM1-5_historical_r10i1p1f1_gn_185001-201412.nc'

Workaround

Use replica datasets hosted at other sites with OPeNDAP support.

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