Requirement #788 


For variable: Downward short-wave irradiance at Earth surface

In application: Climate Monitoring (GCOS)

Goal Breakthrough Threshold
Uncertainty 1 W.m-2
Stability/decade (if applicable) 0.2 W.m-2
Horizontal Resolution 100 km
Vertical Resolution
Observing Cycle 30 d


Validated: 9/25/19 Source: GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016)
Comment: Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level. Requirements for observing cycle are monthly (resolving diurnal cycle). Confidence: reasonable
Def: :Not firm, but based on a strong heritage of experiments with similar data