■^//J'^'J^t.'^'.f" ' •^>r>Vf.f.ty-'-''.>^ffrrj'^fff>ff^'»^"'"* 



rm^ 



FIGURE 4. FETCH. 



FIGURE 5. CURVES FOR FREQUENCY, 

 F, AND SPEED, S, OF THE WIND. 



FIGURE 6. DIRECTIONAL WIND ROSE. 



18 



