| 
  
  
   
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
      | 
    
   
    | • | 
    Horizontal
    Advection 
     | 
     | 
    
   
     | 
    
   
     | 
    – | 
    Two
    of the thermodynamical variables T, S, and density are advected 
     | 
     | 
    
   
     | 
    (user
    selectable), with the third calculated from the equation of state. 
     | 
     | 
    
   
     | 
    
   
     | 
    – | 
    If
    HYCOM is run in MICOM mode, advection is performed as in 
     | 
     | 
    
   
     | 
    
   
     | 
    MICOM
    2.8, with T and S advected in layer 1 (the mixed layer) and S 
     | 
    
   
     | 
    only
    advected in the isopycnic layers. 
     | 
     | 
    
   
   | 
   |