



/^V. 





i 



.« 









\ '■ * 







: / 







\\ /: 



.0i 



I 







V/ '"'■ ■•* 



20 3D 



(a) 



50 (0 



J (b) 



(C) 



Time (hrs ) 



Figure 57. Hydrographs along 6 = v./2 and r = ri 

 (a) , r m (b) and r 2 (c) for the polar 

 grid (solid) and rectilinear grid 

 (dashed) . 



101 



