Requirement #449 


For variable: Integrated Water Vapour (IWV)

In application: Nowcasting / VSRF

Goal Breakthrough Threshold
Uncertainty 1 kg.m-2 2 kg.m-2 5 kg.m-2
Stability/decade (if applicable)
Horizontal Resolution 5 km 10 km 50 km
Vertical Resolution
Observing Cycle 15 min 30 min 60 min
Timeliness 5 min 10 min 30 min


Validated: 4/3/13 Source: P. Ambrosetti
Comment: Confidence: firm
Def: :Result of impact studies of actual data used in actual applications of numerical or conceptual models
  • Domain: Atmosphere