Requirement #701 


For variable: Downward short-wave irradiance at Earth surface

In application: Nowcasting / VSRF

Goal Breakthrough Threshold
Uncertainty 1 W.m-2 10 W.m-2 20 W.m-2
Stability/decade (if applicable)
Horizontal Resolution 5 km 15 km 50 km
Vertical Resolution
Observing Cycle 60 sec 10 min 60 min
Timeliness 60 sec 10 min 60 min


Validated: 4/15/13 Source: P. Ambrosetti
Comment: Rapid observation observing cycle needed for solar energy power prediction Confidence: reasonable
Def: :Not firm, but based on a strong heritage of experiments with similar data