UnicodeDecodeError when trying to load Daymet V4R1 data via python open_url

Question

I am trying to download Daymet data via python, using the following jupyter notebook provided by the ORNL: https://github.com/ornldaac/daymet-python-opendap-xarray/blob/master/1_daymetv4_discovery_access_subsetting.ipynb

Everything works fine until section 3.1.b, which looks like the following:

thredds_url = "https://thredds.daac.ornl.gov/thredds/dodsC/ornldaac/2129/" #ORNL DAAC TDS OPeNDAP URLfor Daymet V4R1 Daily Files

before = time.time() 
cnt = 0 
for g_name in granule_names: 
    print(granule_names) 
    print(g_name) 
    print(' GRANULE_NAME ---->', g_name) 
    granule_dap = thredds_url + g_name.replace('Daymet_Daily_V4R1.','') print(granule_dap)

    #Using pydap's open_url 
    thredds_ds = open_url(granule_dap) 

    #Xarray DataSet - opening dataset via remote OPeNDAP 
    ds = xr.open_dataset(xr.backends.PydapDataStore(thredds_ds), decode_coords="all")
    
    temp=ds['tmin'].sel(x=slice(lccbounds.minx[0],lccbounds.maxx[0]),
    y=slice(lccbounds.maxy[0],lccbounds.miny[0]))

    if cnt==0:
        tmin = temp
    else:
        tmin = xr.concat([tmin, temp], dim="time")

    cnt += 1

#save to netcdf
tmin.to_netcdf(var + '_tdssubset.nc') print("Processing Time: ", time.time() - before, 'seconds')

The error message occurs at the following position with this error:

thredds_ds = open_url(granule_dap)
UnicodeDecodeError: 'ascii' code cant decode byte 0x0b in position 1: ordinal not in range(128)

Any ideas how this can be fixed?

I already looked for mistakes in the labelling of the daymet_doi, etc. as with the move from Daymet V4 to V4R1 the ID had changed but this was not the root cause. Can anyone check if the tutorial is working for them?

UnicodeDecodeError when trying to load Daymet V4R1 data via python open_url

0 Answers0