Global attributes

CORDEX-CMIP6 global attribute description examples corresponding attribute in CORDEX-CMIP5 form when required?
activity_id an identifier of different CORDEX activities as dynamical downscaling (DD) or empirical- statistical downscaling (ESD). Used in faceted searches, part of DRS. "DD" is the only option, (see reference CV) - CV always
comment additional information about the data or methods used to produce the simulation - comment free form never
contact contact information of the institution that is responsible for CORDEX simulations (avoid personal contact information) - contact free form always
Conventions Climate and Forecast (CF) metadata conventions version "CF-1.11" is the only option. Conventions CV always
creation_date date when the file was created in format YYYY-MM-DDTHH:MM:SSZ "2023-01-15T14:30:23Z" creation_date structured form always
domain name of the CORDEX region "Africa", "South-East Asia" (see reference CV) - CV always
domain_id an identifier assigned to each CORDEX region including a flag for resolution. Used in faceted searches, part of DRS. "AFR-25", "SEA-25" (see reference CV) CORDEX_domain CV always
driving_experiment short description of the reanalysis-driven experiment or the driving CMIP6 experiment "evaluation run with reanalysis forcing", "all-forcing simulation of the recent past", "gap-filling scenario reaching 7.0 based on SSP3" (see reference CV) experiment CV always
driving_experiment_id an identifier of the reanalysis-driven experiment or the driving CMIP6 experiment. Used in faceted searches, part of DRS. "evaluation", "historical", "ssp370" (see reference CV) experiment_id CV always
driving_institution_id an identifier of the institution that is responsible for the driving reanalysis or CMIP6 simulation "ECMWF" (see reference CV) part of driving_model_id CV always
driving_source_id reanalysis or CMIP6 model identifier Used in faceted searches, part of DRS. "ERA5" (reference CV) part of driving_model_id CV always
driving_variant_label variant_label of the CMIP6 simulation or driving reanalysis. Used in faceted searches, part of DRS. "r1i1p1f1", "r2i1p1f1" driving_model_ensemble_member (ensemble_member in CMIP5) always
frequency sampling frequency Used in faceted searches, part of DRS. day, mon, 6hr, 3hr, 1hr, fx (see reference CV) frequency CV always
grid provides information about the horizontal grid and regridding procedure see note 1 - free form always
history a timestamped trail for modifications to the original data, as suggested by the CF conventions - history free form never
institution full name of the institution that is responsible for CORDEX simulations (see reference CV) institution CV to register always
institution_id an identifier of the institution that is responsible for CORDEX simulations Used in faceted searches, part of DRS. (see reference CV) institute_id CV to register always
license provides information about the license "https://cordex.org/data-access/cordex-cmip6-data/cordex-cmip6-terms-of-use" is the only option - CV always
mip_era determines what cycle of CMIP defines experiment and data specifications "CMIP6" is the only option. - CV always
product product type Used in faceted searches. "model-output" is the only option product CV always
project_id project identifier Used in faceted searches, part of DRS. "CORDEX-CMIP6" is the only option. project_id CV always
references published or web-based references that describe the data, model or methods used - references free form never
source full model name/version see "label_extended" in reference CV - CV to register always
source_id model identifier (acronym) Used in faceted searches, part of DRS. see "source_id" in reference CV part of model_id CV to register always
source_type model configuration Used in faceted searches "ARCM", "AORCM", "AGCM", "AOGCM" (see reference CV) - CV always
tracking_id unique file identifier see note 3 tracking_id structured form always
variable_id variable identifier Used in faceted searches, part of DRS. "tas", "pr" (see CORDEX-CMIP6 CMOR Tables) - CV always
version_realization identifies versions of CORDEX datasets and RCM realizations Used in faceted searches, part of DRS. "v1-r1", "v2-r1", "v1-r2" rcm_version_id structured form always
version_realization_info description of version_realization if it is not "v1-r1" see note 2 - free form never but recommended