SPEED AND SET OF FLOW INDEFINITE 



/ /III/ BOTTOM OR LAYER OF NO MOTION /III 



I I I I I I I I I I I I I I I / 



A. NO MIXED LAYER -NONHOMOGENEOUS SYSTEM 



F F F F F F F 



MEAN FLOW OF PURE WIND CURRENT IN NORTHERN HEMISPHERE 

 (DIRECTION OF WIND TOWARD OBSERVER) 



SPEED AND SET OF FLOW INDEFINITE 



I I I I I BOTTOM OR LAYER OF NO MOTION I / I I I 



B. MIXED LAYER — BOTH SYSTEMS 



FIGURE II HOMOGENEOUS AND NONHOMOGENEOUS SYSTEMS 



20 



