24 



Large-Scalb Features 



In order to discuss the Gulf Stream in relation to the broad features of 

 the North Atlantic Ocean it is necessary to introduce at this point a 

 number of charts and graphical presentations of data which Avill be useful 

 in later descriptions and for reference. Thus there are presented, in figs. 3 



SURFACE TEMPERATURE 



DEGREES FAHRENHEtT 



FEBRUARY 



Fig. 3. Contours of surface temperature in the western North Atlantic for 

 February, according to Fuglister (1947, pi. 2). 



and 4, the surface-temperature charts prepared by Fuglister (1947, pis. 2 

 and 8) for the months of February and August. The currents and hori- 

 zontal temperature gradients are actually much more pronounced than 

 these average charts show, because the averaging processes used in their 

 construction tend to blur the fine and shifting detail of the instantaneous 

 velocity and temperature fields. 



