60° 120° 180° 120° 60° 



Figure 23. Ocean currents predicted by global model, assuming homogeneous ocean and actual bottom topography. 



The results mentioned above will be analyzed and checked in detail. 

 It is also planned to use the calculated velocity fields of the model to de- 

 termine the poleward transport of heat and water in the ocean. The trans- 

 port of heat and water by the ocean is extremely important in the global 

 heat budget and water balance, about which almost no quantitative infor- 

 mation exists. Present heat transport estimates for the oceans are based 

 entirely on surface heat balance calculations using somewhat doubtful em- 

 pirical formulas. Similarly, it is very difficult to explain the existing salinity 

 field of the world ocean based on the scant data available on precipitation 

 and evaporation at sea. If it is assumed that the salinity field is stationary, 

 the transport of water toward the poles can be calculated from the covari- 

 ance of salinity and poleward velocity along latitudinal planes. The total 

 transport of water poleward by the world ocean should exactly compensate 

 the water vapor transport in the atmosphere plus the equatorward flow in 



