{"access":{"available_views":["co2"],"bbox_filter":"select station whose latitude/longitude fall in range, then slice time","combined_view":"co2","entity_groups":"top-level groups not starting with '_' are individual stations/sites/cruises; '_combined' holds cross-entity views","lat_coord":"latitude","layout":"station × time panel — dims (station, time); latitude/longitude are 1-D coords on station","lon_coord":"longitude","open":"xarray.open_zarr(store, group='co2', consolidated=True)","station_dim":"station","time_coord":"time"},"audience":"automated agents and LLMs accessing this Zarr store","conventions":{"identity_attrs":["latitude","longitude","elevation","station_id","station_name","network","country","source_doi","citation","collection_doi","license","license_url"],"metadata":"CF-1.12, ACDD-1.3 with a canonical cross-store attribute vocabulary","quality_control":"<gas>_qc_flag is a categorical STRING flag. Keep where the first character is 'U' or 'O' (the ICOS ATC usable convention). (NOAA ObsPack instead uses <gas>_qc is a uint8 use flag derived from obs_flag: 0=use, 1=reject. Keep == 0.)"},"discovery":{"api":"ICOS zarr proxy — GET /variables, /variables/{id}, /query?id=..&lat_min=..&lat_max=..&lon_min=..&lon_max=..&start=..&end=..&apply_qc=.. ; machine-readable contract at /openapi.json","collection_doi":"https://doi.org/10.18160/JZ2X-GZGU","croissant":".icos-obspack.zarr.staging.croissant.jsonld (sibling of the store directory)","croissant_url":"ICOS zarr proxy: GET /.icos-obspack.zarr.staging/croissant — same Croissant, also linked (with @id) from the proxy-root schema.org DataCatalog when fetched with Accept: application/ld+json","variable_catalog":"variable_catalog.json (sibling of the store directory)"},"docs":["CONVENTIONS.md","CONSUMER_MIGRATION.md"],"domain":"atmosphere","schema_version":"1.0"}