49' 



48' 



47" 



46' 



-10101^ 



i 



A2 



10088 

 o . 



970.9 O 



^ 



^iiooj- 



971.1 971.0 970.9 



IOO(m> 



45' 



000*"' 



oo^"- 



A3 



44° 



10102 . 



971.1 



O 10110 



43' 



-, l'0( 



°<»^ 



A4 



10111 



o 



42« 



41' 



1.971.0^ 



o 

 10117 



CURRENT VEIOCITT (m/i* 



54" 



53' 



52' 



51' 



50« 



49' 



48' 



47' 



46' 



45' 



44' 



Figure 5. Sea-surface dynamic topography (dynamic meters) relative to 1000 decibars, 12-15 April 1968. Arrows 

 denote sea-surface dynamic heights at intervals of 0.02 dynamic meters. Staffs of arrows are drawn perpen- 

 dicular to imaginary line segments connecting adjacent stations; heads of arrows indicate direction of geo- 

 strophic current. Nomograph for obtaining geostrophic speed when entering with distance between 0.02 

 dynamic-meter contours assumes latitude of 45°. 



12 



