authority: gcos
slug: carbon-dioxide
name: Carbon Dioxide
domain: atmosphere
subdomain: composition
authority_id: gcos:carbon-dioxide
external_ids:
  nvs_uri: http://vocab.nerc.ac.uk/collection/P02/current/CO2X/
  cf_standard_name: mole_fraction_of_carbon_dioxide_in_air
  iadopt_concepts:
    property: mole-fraction
    entity: carbon-dioxide
canonical_units: "1"
gcos_requirement_tier:
  threshold: null
  breakthrough: null
  goal: null
description: |
  Atmospheric mole fraction of CO2 from surface flask network (NOAA GML),
  total/partial column from satellites (OCO-2/3, GOSAT, TROPOMI), and
  in situ profiles. The dominant anthropogenic greenhouse gas.
theme: atmosphere
demos: []
status: documented
sources:
  - https://gcos.wmo.int/site/global-climate-observing-system-gcos/essential-climate-variables/carbon-dioxide-methane-and-other-greenhouse-gases