slug: transient-tracers
name: Transient Tracers
domain: ocean
subdomain: biogeochemical
authorities:
  - gcos: transient-tracers
  - goos: transient-tracers
external_ids:
  nvs_uri: null
  cf_standard_name: null
  iadopt_concepts:
    property: concentration
    entity: transient-tracer
  gcos_overlap: null
canonical_units: mol m-3
gcos_requirement_tier:
  threshold: null
  breakthrough: null
  goal: null
description: |
  Anthropogenic tracers used to date water masses and quantify ventilation
  timescales: CFC-11, CFC-12, SF6 and tritium/3He. Sampled during global
  hydrographic sections (GO-SHIP).
theme: ocean
demos: []
status: stub
sources:
  - https://gcos.wmo.int/site/global-climate-observing-system-gcos/essential-climate-variables/transient-tracers
  - https://goosocean.org/eov/transient-tracers/