FIGURE 5-7. WIND AND CONVECTIVE MIXING. 



SUMMER 



SURFACE HEATING 



MODERATE WINDS STRONG WINDS 



CALM AND WARM 



/ 



\ 



TURBULENT MIXING. 



AUTUMN 



WINTER 



\ 

 \ 



SURFACE COOLING 



AND 

 MIXING CONVECTIVELY 



V 



MAXIMUM MIXING 



52 



