64 



Hydrography of the Stream 



35.5 



30 MILES 



BT. OBS. 



Fig. 38. Salinity, temperature, and velocity across the Gulf Stream (above), 

 showing the fresh filament on the inshore edge; and (below) a bathythermo- 

 graphic section, in degrees Fahrenheit, based on data collected at the same 

 time. From Ford, Longard, and Banks (1952, fig. 3). 



Fig. 39. Chart showing the filament of cold water along the edge of the 

 Stream. The contour lines represent surface temperatures obtained by a con- 

 tinuously recording thermograph on board H.M.C.S. New Liskeard. The ship's 

 course is shown by arrowed lines. The current parallels the isotherms. The 

 contours are drawn in by eye, and, of course, are subject to the ambiguities of 

 contom-ing (see p. 59). From Ford, Longard, and Banks (1952, fig. 2). 



