  | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
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    Winter
    (February 15) current velocity 
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    for
    the HYCOM KPP case in the 
     | 
     | 
   
   
    uppermost
    model layer (top) and 
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     | 
   
   
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    vertically
    averaged within the 
     | 
     | 
   
   
    mixed
    layer. 
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    The
    differences show the dominance 
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     | 
   
   
     | 
   
   
    of
    wind-driven ageostrophic flow in 
     | 
     | 
   
   
    the
    model surface layer (upper 10m). 
     | 
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    Vertical
    current structure within the 
     | 
     | 
   
   
    mixed
    layer could not be resolved by 
     | 
     | 
   
   
     | 
   
   
    MICOM. 
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     |