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Add cdl example from CNRM #3

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90 changes: 90 additions & 0 deletions .../tpoce_MED-12_ERA5_evaluation_r1i1p1f1_CNRM-MF_CNRM-RCSM6B-SN_v1-r1_mon_198803-198803.cdl
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netcdf tpoce_MED-12_ERA5_evaluation_r1i1p1f1_CNRM-MF_CNRM-RCSM6B-SN_v1-r1_mon_198803-198803 {
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@jesusff jesusff Jul 2, 2025

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This is just an example for a single month, but the real monthly files should be split into decades, starting with year 1, that is, this month would belong to a file named ..._198101-199012.nc

dimensions:
axis_nbounds = 2 ;
x = 567 ;
y = 264 ;
deptht = 75 ;
time = UNLIMITED ; // (1 currently)
variables:
float nav_lat(y, x) ;
nav_lat:standard_name = "latitude" ;
nav_lat:long_name = "Latitude" ;
nav_lat:units = "degrees_north" ;
float nav_lon(y, x) ;
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Should be lat and lon (no nav_)

The crs and native coordinates variables are missing

nav_lon:standard_name = "longitude" ;
nav_lon:long_name = "Longitude" ;
nav_lon:units = "degrees_east" ;
float deptht(deptht) ;
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Should be depth(depth) (no t at the end) https://github.com/WCRP-CORDEX/cordex-cmip6-cmor-tables/blob/508ca0ee5df5c27663622371bbf34f0ba916970b/Tables/CORDEX-CMIP6_coordinate.json#L233-L254

deptht:name = "deptht" ;
deptht:long_name = "Vertical T levels" ;
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should be long_name = "ocean depth coordinate"

deptht:units = "m" ;
deptht:positive = "down" ;
deptht:bounds = "deptht_bounds" ;
float deptht_bounds(deptht, axis_nbounds) ;
deptht_bounds:units = "m" ;
double time(time) ;
time:axis = "T" ;
time:standard_name = "time" ;
time:long_name = "Time axis" ;
time:calendar = "gregorian" ;
time:units = "days since 1900-01-01 00:00:00" ;
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should be days since 1950-01-01 unless the simulation started before 1950

time:time_origin = "1900-01-01 00:00:00" ;
time:bounds = "time_bounds" ;
double time_bounds(time, axis_nbounds) ;
float tpoce(time, deptht, y, x) ;
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The variable name should be thetao. Check also the cell_methods https://github.com/WCRP-CORDEX/cordex-cmip6-cmor-tables/blob/508ca0ee5df5c27663622371bbf34f0ba916970b/Tables/CORDEX-CMIP6_mon.json#L3226-L3241

tpoce:standard_name = "sea_water_potential_temperature" ;
tpoce:long_name = "Sea Water Potential Temperature" ;
tpoce:units = "degC" ;
tpoce:online_operation = "average" ;
tpoce:cell_methods = "time: mean" ;
tpoce:interval_operation = "720 s" ;
tpoce:interval_write = "1 month" ;
tpoce:_FillValue = 1.e+20f ;
tpoce:missing_value = 1.e+20f ;
tpoce:coordinates = "nav_lat nav_lon" ;
tpoce:description = "None" ;
tpoce:history = "none" ;
tpoce:cell_measures = "area: areacello" ;

// global attributes:
:name = "/scratch/work/sevault/CNRM-RCSM6B/RCSM6B-ERA5.2/outputs/19880101/tpoce_MED-12_ERA5_evaluation_r1i1p1f1_CNRM-MF_CNRM-RCSM6B-SN_v1-r1_mon_%start_date%-%end_date%" ;
:description = "Created by xios" ;
:creation_date = "2024-03-29T07:43:23Z" ;
:tracking_id = "hdl:21.14103/227c3a13-dde3-4b47-987e-3d7e0120cae1" ;
:title = "CNRM-RCSM6B-SN model output prepared for CORDEX-CMIP6 / evaluation simulation driven by ERA5, evaluation, r1i1p1f1" ;
:Conventions = "CF-1.10" ;
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should be CF-1.11

:activity_id = "RCM" ;
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Should be "DD"

:comment = "CORDEX MED-12 CNRM-RCSM6B-SN L91." ;
:contact = "contact.aladin-cordex@meteo.fr" ;
:dr2xml_version = "3.0" ;
:domain = "MED-12" ;
:domain_id = "MED-12" ;
:driving_experiment = "ERA5, evaluation, r1i1p1f1" ;
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driving_experiment is not free to choose, see https://github.com/WCRP-CORDEX/cordex-cmip6-cv/blob/main/CORDEX-CMIP6_driving_experiment_id.json

In general, all attributes in the CV must follow exactly the values there https://github.com/WCRP-CORDEX/cordex-cmip6-cv

:driving_experiment_id = "evaluation" ;
:driving_institution_id = "ECMWF" ;
:driving_source_id = "ERA5" ;
:driving_variant_label = "r1i1p1f1" ;
:experiment_id = "evaluation" ;
:external_variables = "areacello" ;
:frequency = "mon" ;
:further_info_url = "http://www.umr-cnrm.fr/" ;
:history = "none" ;
:institution = "CNRM (Centre National de Recherches Meteorologiques) - Météo France, Toulouse, France" ;
:institution_id = "CNRM-MF" ;
:license = "CORDEX model data produced by CNRM-MF is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses). Consult (...) for terms of use governing CORDEX output, including citation requirements and proper acknowledgment. The data producers and data providers make no warranty, either express or implied, including, but not limited to, warranties of merchantability and fitness for a particular purpose. All liabilities arising from the supply of the information (including any liability arising in negligence) are excluded to the fullest extent permitted by law." ;
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license should be exactly https://cordex.org/data-access/cordex-cmip6-data/cordex-cmip6-terms-of-use

:mip_era = "CMIP6" ;
:native_resolution = "8 km" ;
:product = "model-output" ;
:project_id = "CORDEX" ;
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Should be "CORDEX-CMIP6"

:realm = "ocean" ;
:references = "Nabat, P., Somot, S., Cassou, C., Mallet, M., Michou, M., Bouniol, D., Decharme, B., Druge, T., Roehrig, R. and Saint-Martin, D. (2020): Modulation of radiative aerosols effects by atmospheric circulation over the Euro-Mediterranean region, Atmos. Chem. Phys., 20, 8315-8349, doi:10.5194/acp-20-8315-2020." ;
:source = "CNRM-ALADIN64E1" ;
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source should be the content of the label_extended provided during registration. In general, all info registered for the source and institution should match that registered: https://wcrp-cordex.github.io/cordex-cmip6-cv/CORDEX-CMIP6_source_id.html

:source_id = "CNRM-ALADIN64E1" ;
:source_type = "AORCM AER" ;
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Should be "AORCM"

:variable_id = "tpoce" ;
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thetao

:version_realisation = "v1-r1" ;
:CMIP6_CV_version = "cv=6.2.3.0-7-g2019642" ;
:EXPID = "RCSM6B-ERA5.2" ;
:dr2xml_md5sum = "fdee7e9a1c0c1c2cb709a65fb5c920d5" ;
:xios_commit = "1442-shuffle" ;
}