^ 1 1 i h- 



63 71 73 



TIME (-YEAR) 

 CONTOUR : MLW 



TIME 

 CONTOUR 



TIME 

 CONTOUR 



CO 



69 71 



time r t err; 



CONTOUR : MHW 



o 



LP ■+■ 



59 



TIME (YEAR] 

 CONTOUR : -1.83 M 



DISTANCE FROM THE BASE LINE TO STATED CONTOURS AT MB 20 



152 



