Requirement #912 


For variable: O3 Total Column

In application: Forecasting Atmospheric Composition

Goal Breakthrough Threshold
Uncertainty 1 % 5 %
Stability/decade (if applicable)
Horizontal Resolution 5 km 100 km
Vertical Resolution
Observing Cycle 6 h 24 h
Timeliness 60 min 3 h


Validated: 1/5/22 Source: GAW Expert Team on Atmospheric Composition Network Design and Evolution
Comment: Uncertainties are provided as 2 sigma. They represent the sum of random and systematic error. 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: O3 Total Column
        • Applicable (vertical) layers:
          • TC
        • Horizontal Coverage: Global