Requirement #304 


For variable: Integrated Water Vapour (IWV)

In application: Global NWP

Goal Breakthrough Threshold
Uncertainty 1 kg.m-2 2 kg.m-2 5 kg.m-2
Stability/decade (if applicable)
Horizontal Resolution 15 km 50 km 250 km
Vertical Resolution
Observing Cycle 60 min 6 h 12 h
Timeliness 6 min 30 min 6 h


Validated: 2/10/09 Source: John Eyre
Comment: Confidence: firm
Def: :Result of impact studies of actual data used in actual applications of numerical or conceptual models
  • Domain: Atmosphere