section_path: Oceanography
section_name: Oceanography
paragraph_text: Oceanography
  
  It is suggested that strong ocean currents exist in Enceladus, Titan, Ganymede, and Europa. In Enceladus, oceanic heat flux inferred from ice shell thickness suggests the upwelling of warm water at the poles and downwelling of colder water at low latitudes. Europa is predicted to have an equatorial upwelling of warm water with greater heat transfer at low latitudes. Global scale currents are organized into three zonal and two equatorial circulation cells, convecting internal heat toward the surface, especially in equatorial regions. Titan and Ganymede are hypothesized to behave as a non-rotating system and have no coherent heat transfer patterns.