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https://github.com/pydata/xarray/issues/3466#issuecomment-1013673140 https://api.github.com/repos/pydata/xarray/issues/3466 1013673140 IC_kwDOAMm_X848a2y0 6815953 2022-01-15T12:21:44Z 2022-01-17T10:37:59Z NONE

Hi all, I encountered the same problem when trying to download NASA's GEOS-5 data (see below). It worked occasionally but I had to restart the script several times.

```python import xarray as xr import pandas as pd

URL ='https://opendap.nccs.nasa.gov/dods/GEOS-5/fp/0.25_deg/assim/inst3_3d_asm_Np' ds = xr.open_dataset(URL,engine='netcdf4') var_ls = ['omega', 't', 'v', 'u'] lev_ls = [1000., 975., 950., 925., 900., 875., 850., 825., 800., 775., 750., 700., 650., 600., 550., 500., 450., 400., 350., 300., 275., 250., 225., 200., 175., 150., 125., 100., 70., 50., 30., 10., 5.,3, 2, 1]

time_range = pd.date_range('2021-01-02T12', '2021-01-07', freq = '6H')

for sel_date in time_range: ds_sel = ds[var_ls].sel( time = sel_date, lev = lev_ls, method = 'nearest' ) ouf_date=sel_date.strftime('%Y%m%d%H') outfile = f'geos5_subset_{ouf_date}.nc' print(outfile) ds_sel.to_netcdf(outfile) `` [EDIT] It may have helped to add.loadbeforeto_netcdf` though.

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