Requirement #1134 

Values

For variable: Water Vapour Mixing Ratio

In application: 2.5 Atmospheric Climate Monitoring

Application-dependent Technical Priority: 0.5

Goal Breakthrough Threshold Priority
Uncertainty 0.1 ppmv 0.25 ppmv 0.5 ppmv 0.5
Layer/s Quality
Coverage Quality
Stability/decade (if applicable) 0.19 ppmv 0.2 ppmv 0.5 ppmv 0.5
Horizontal Resolution 50 km 500 km 1500 km 0.5
Vertical Resolution 500 m 1000 m 3000 m 0.5
Observing Cycle 3 h 6 h 3 d 0.5
Timeliness 60 min 7 d 30 d 0.5

 

Validated: 4/11/25 Source: GCOS-245: The 2022 ECVs Requirements (GCOS-245)
General Comment: uncertainty at 2-sigma 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
  • Domain: Atmosphere
    • Subdomain: Basic atmospheric