Requirement #78 

Values

For variable: CH4 mole fraction

In application: Climate-AOPC (deprecated)

Goal Breakthrough Threshold
Uncertainty 2 ppb 4 ppb 10 ppb
Stability/decade (if applicable)
Horizontal Resolution 10 km 20 km 50 km
Vertical Resolution 2 km 2.5 km 3 km
Observing Cycle 3 h 4 h 6 h
Timeliness 30 d 60 d 180 d

 

Validated: 7/19/07 Source: AOPC
Comment: 20 ppb Acc goal and 120 ppb Acc Min Confidence: firm
Def: :Result of impact studies of actual data used in actual applications of numerical or conceptual models
Specifications
  • Domain: Atmosphere
    • Subdomain: Atmospheric chemistry
      • Variable: CH4 mole fraction
        • Applicable (vertical) layers:
          • PBL
        • Horizontal Coverage: Global