Dataset problem: Issues with latitude and longitude for tos of BCCs CMIP6 models #537
Description
Describe the dataset issue
The names for the 1D grid_latitude and grid_longitude on irregular grids are set to latitude and longitude, causing iris to find duplicate coordinates. Multidimensional latitude and longitude coordinate do not have bounds.
Data file has been changed by you in any way- Project (CMIP5/CMIP6/OBS/obs4mips/etc): CMIP6
- Full dataset description (fill out as many as you know, please):
- dataset: BCC-CSM2-MR, BCC-ESM1
- experiment: historical
- mip: Omon
- grid: gn
- variable used: tos
- Pointer to existing copy of data on ESGF node (it would be very useful if you could provide a physical fullpath to the file(s) that are causing the problem, e.g. on CEDA Jasmin or DKRZ):
/mnt/lustre02/work/ik1017/CMIP6/data/CMIP6/CMIP/BCC/BCC-CSM2-MR/historical/r1i1p1f1/Omon/tos/gn/v20181126/tos_Omon_BCC-CSM2-MR_historical_r1i1p1f1_gn_185001-201412.nc
/mnt/lustre02/work/ik1017/CMIP6/data/CMIP6/CMIP/BCC/BCC-ESM1/historical/r1i1p1f1/Omon/tos/gn/v20181129/tos_Omon_BCC-ESM1_historical_r1i1p1f1_gn_185001-201412.nc
ncdump (without global attributes):
netcdf tos_Omon_BCC-CSM2-MR_historical_r1i1p1f1_gn_185001-201412 {
dimensions:
time = UNLIMITED ; // (1980 currently)
lat = 232 ;
lon = 360 ;
bnds = 2 ;
variables:
double time(time) ;
time:bounds = "time_bnds" ;
time:units = "days since 1850-1-1" ;
time:calendar = "365_day" ;
time:axis = "T" ;
time:long_name = "time" ;
time:standard_name = "time" ;
double time_bnds(time, bnds) ;
double lat(lat) ;
lat:bounds = "lat_bnds" ;
lat:units = "degrees_north" ;
lat:axis = "Y" ;
lat:long_name = "latitude" ;
lat:standard_name = "latitude" ;
double lat_bnds(lat, bnds) ;
double lon(lon) ;
lon:bounds = "lon_bnds" ;
lon:units = "degrees_east" ;
lon:axis = "X" ;
lon:long_name = "Longitude" ;
lon:standard_name = "longitude" ;
double lon_bnds(lon, bnds) ;
float latitude(lat, lon) ;
latitude:standard_name = "latitude" ;
latitude:long_name = "latitude" ;
latitude:units = "degrees_north" ;
latitude:missing_value = 1.e+20f ;
latitude:_FillValue = 1.e+20f ;
float longitude(lat, lon) ;
longitude:standard_name = "longitude" ;
longitude:long_name = "longitude" ;
longitude:units = "degrees_east" ;
longitude:missing_value = 1.e+20f ;
longitude:_FillValue = 1.e+20f ;
float tos(time, lat, lon) ;
tos:standard_name = "sea_surface_temperature" ;
tos:long_name = "Sea Surface Temperature" ;
tos:comment = "Temperature of upper boundary of the liquid ocean, including temperatures below sea-ice and floating ice shelves." ;
tos:units = "degC" ;
tos:original_name = "tos" ;
tos:cell_methods = "area: mean where sea time: mean (interval: 30 minutes)" ;
tos:cell_measures = "area: areacello" ;
tos:missing_value = 1.e+20f ;
tos:_FillValue = 1.e+20f ;
tos:coordinates = "latitude longitude" ;
netcdf tos_Omon_BCC-CSM2-MR_historical_r1i1p1f1_gn_185001-201412 {
dimensions:
time = UNLIMITED ; // (1980 currently)
lat = 232 ;
lon = 360 ;
bnds = 2 ;
variables:
double time(time) ;
time:bounds = "time_bnds" ;
time:units = "days since 1850-1-1" ;
time:calendar = "365_day" ;
time:axis = "T" ;
time:long_name = "time" ;
time:standard_name = "time" ;
double time_bnds(time, bnds) ;
double lat(lat) ;
lat:bounds = "lat_bnds" ;
lat:units = "degrees_north" ;
lat:axis = "Y" ;
lat:long_name = "latitude" ;
lat:standard_name = "latitude" ;
double lat_bnds(lat, bnds) ;
double lon(lon) ;
lon:bounds = "lon_bnds" ;
lon:units = "degrees_east" ;
lon:axis = "X" ;
lon:long_name = "Longitude" ;
lon:standard_name = "longitude" ;
double lon_bnds(lon, bnds) ;
float latitude(lat, lon) ;
latitude:standard_name = "latitude" ;
latitude:long_name = "latitude" ;
latitude:units = "degrees_north" ;
latitude:missing_value = 1.e+20f ;
latitude:_FillValue = 1.e+20f ;
float longitude(lat, lon) ;
longitude:standard_name = "longitude" ;
longitude:long_name = "longitude" ;
longitude:units = "degrees_east" ;
longitude:missing_value = 1.e+20f ;
longitude:_FillValue = 1.e+20f ;
float tos(time, lat, lon) ;
tos:standard_name = "sea_surface_temperature" ;
tos:long_name = "Sea Surface Temperature" ;
tos:comment = "Temperature of upper boundary of the liquid ocean, including temperatures below sea-ice and floating ice shelves." ;
tos:units = "degC" ;
tos:original_name = "tos" ;
tos:cell_methods = "area: mean where sea time: mean (interval: 30 minutes)" ;
tos:cell_measures = "area: areacello" ;
tos:missing_value = 1.e+20f ;
tos:_FillValue = 1.e+20f ;
tos:coordinates = "latitude longitude" ;
Fix provided in #560.