l.300 sm_year = xr.merge([sm_year,sm_day],compat='override') instead of sm_year = xr.merge([sm_year,sm_day]) #,compat='override')
l.300 sm_year = xr.merge([sm_year,sm_day],compat='override') instead of sm_year = xr.merge([sm_year,sm_day]) #,compat='override')