Requirement #789 

Values

For variable: Relative humidity

In application: 2.5 Atmospheric Climate Monitoring

Application-dependent Technical Priority: 0.5

Goal Breakthrough Threshold Priority
Uncertainty 0.1 % 0.5 % 1 % 0.5
Layer/s Quality
Coverage Quality
Stability/decade (if applicable) 0.1 % 0.5 % 1 % 0.5
Horizontal Resolution 15 km 100 km 500 km 0.5
Vertical Resolution 0.001 km 0.01 km 0.1 km 0.5
Observing Cycle 30 min 6 h 12 h 0.5
Timeliness 60 min 5 d 30 d 0.5

 

Validated: 5/9/23 Source: GCOS-245: The 2022 ECVs Requirements (GCOS-245)
General Comment: Requirements for uncertainty are specified at 2-sigma. Units for uncertainty and stability are %RH 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: GOAL for temporal resolution is sub-hourly Performance Comment:
Specifications
  • Domain: Atmosphere
    • Subdomain: Basic atmospheric
      • Variable: Relative humidity
        • Applicable (vertical) layers:
          • PBL
        • Horizontal Coverage: Global