Requirement #85 


For variable: Cloud top height

In application: Climate-AOPC (deprecated)

Goal Breakthrough Threshold
Uncertainty 0.5 km 1 km 2 km
Stability/decade (if applicable)
Horizontal Resolution 100 km 200 km 500 km
Vertical Resolution
Observing Cycle 3 h 4 h 6 h
Timeliness 3 h 6 h 12 h


Validated: 7/19/07 Source: AOPC
Comment: Accuracy should be 5hPa (10hPa - Min). Hansen et al. (1995) in T.R. Karl (Ed.) 1995 Long term climate monitoring by the Global Climate Observing System. Kluwer. Also, Climatic Change 31, Nos. 2-4. Confidence: firm
Def: :Result of impact studies of actual data used in actual applications of numerical or conceptual models
  • Domain: Atmosphere
    • Subdomain: Clouds and precipitations
      • Variable: Cloud top height
        • Applicable (vertical) layers:
          • n/a (2D)
        • Horizontal Coverage: Global