Requirement #376 


For variable: Snow water equivalent

In application: High Res NWP

Goal Breakthrough Threshold
Uncertainty 5 mm 8 mm 20 mm
Stability/decade (if applicable)
Horizontal Resolution 0.5 km 2 km 20 km
Vertical Resolution
Observing Cycle 60 min 3 h 6 h
Timeliness 60 min 3 h 24 h


Validated: 2/1/10 Source: JF Mahfouf
Comment: Confidence: tentative
Def: :Positive impact expected but not yet validated due to lack of suitable data and/or models
  • Domain: Terrestrial
    • Subdomain: Land surface
      • Variable: Snow water equivalent
        • Applicable (vertical) layers:
          • Land surface
        • Horizontal Coverage: Global land