Requirement #878 

Values

For variable: CO2 column average dry air mixing ratio

In application: 2.5 Atmospheric Climate Monitoring

Application-dependent Technical Priority: 0.5

Goal Breakthrough Threshold Priority
Uncertainty 0.6 ppm 1 ppm 1.6 ppm 0.5
Layer/s Quality
Coverage Quality
Stability/decade (if applicable) 0.1 ppm/decade 0.2 ppm/decade 0.3 ppm/decade 0.5
Horizontal Resolution 1 km 5 km 10 km 0.5
Vertical Resolution
Observing Cycle 24 h 12 d 72 d 0.5
Timeliness 24 h 7 d 14 d 0.5

 

Validated: 4/11/25 Source: GCOS-245: The 2022 ECVs Requirements (GCOS-245)
General Comment: uncertainty units are expressed in ppm according to GCOS-245 Confidence: firm
Def: :Result of impact studies of actual data used in actual applications of numerical or conceptual models
Application Area Comment: Horizontal Coverage Comment:
Observation Comment: Performance Comment:
Specifications