Requirement #117 


For variable: Upward long-wave irradiance at TOA

In application: Climate-AOPC (deprecated)

Goal Breakthrough Threshold
Uncertainty 5 W/m2 6.5 W/m2 10 W/m2
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 24 h


Validated: 7/19/07 Source: AOPC
Comment: Accuracy is consistent with 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