Requirement #167 


For variable: N2O

In application: Atmospheric Chemistry (deprecated)

Goal Breakthrough Threshold
Uncertainty 2 ppb 4.3 ppb 20 ppb
Stability/decade (if applicable)
Horizontal Resolution 100 km 200 km 500 km
Vertical Resolution
Observing Cycle 6 h 10 h 24 h
Timeliness 3 d 4 d 7 d


Validated: 5/24/02 Source: GAW Report No. 159
Comment: Atmos dynamics, Rad clim, Ozone chem (caviat: variable name, definition and units used for these deprecated requirements were changed in 2019; requirements in this table are still expressed in the original units (%) and not in mol/mol as indicated) Confidence: firm
Def: :Result of impact studies of actual data used in actual applications of numerical or conceptual models
  • Domain: Atmosphere
    • Subdomain: Atmospheric chemistry
      • Variable: N2O
        • Applicable (vertical) layers:
          • MUS
          • UTLS
          • FT
          • PBL
          • M
        • Horizontal Coverage: Global