Requirement #879 

Values

For variable: CH4 mole fraction

In application: 2.7 Atmospheric Composition Information Services in Urban and Populated Areas

Application-dependent Technical Priority:

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0.0

Goal Breakthrough Threshold Priority
Uncertainty 8 ppb 18 ppb 36 ppb
Layer/s Quality
Coverage Quality
Stability/decade (if applicable) 1 ppb 2 ppb 5 ppb
Horizontal Resolution 0.5 km 2 km 4 km
Vertical Resolution 20 m 100 m 500 m
Observing Cycle 60 min 24 h 7 d
Timeliness 24 h 30 d 182 d

 

Validated: 1/5/22 Source: GAW Expert Team on Atmospheric Composition Network Design and Evolution
General 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
Application Area Comment: Horizontal Coverage Comment:
Observation Comment: Performance Comment:
Specifications
  • Domain: Atmosphere
    • Subdomain: Atmospheric chemistry
      • Variable: CH4 mole fraction
        • Applicable (vertical) layers:
          • PBL
        • Horizontal Coverage: Local