80° W 75° 70° G5° 60° 55° 50° 45° 40° 35^ W 



SO^N 



45° 



40' 



35° 



30' 



25°N 



— 50° N 



45 



40' 



35« 



- 30' 



25° N 



80°W 75° 70° 65° 60° 55° 50° 45° 40° 35°W 



Figure 18. Fluctuations of North Atlantic current as determined by maximum cross current temperature gradients (after 

 Fuglister and Worthington, 1951). 



17 



