deeper than 130 meters. Unfortunately, no sec- 

 tions were taken in February and March when the 

 conditions are most suitable for the formation of 

 this water type. 



zontal isopleths of salinity and temperature indi- 

 cating that the eddy-like structures were indeed 

 transient. 



REFERENCES 



Section A7 



The waters of the Florida Current crowded 

 closely to the coast of Florida on section A7, 

 extending over the Blake Plateau for about 50 

 nmi. The Blake Plateau itself was about 150 nmi 

 wide in this region (figs. 47-58). East of the 

 Florida Current was a broad region of N AC Water 

 which extended to the end of the section. As on 

 section A6, the most pronounced feature of sec- 

 tion A7 was the 18°C water layer which separated 

 the seasonal from the permanent thermocline. 

 Other interesting features were the apparent rem- 

 nants of cyclonic eddies on A7-2 centered on 

 station 10 and on A7-3 centered on station 6. 

 These eddy-Hke features did not penetrate nearer 

 the surface than the 18°C water layer at about 250 

 meters. Sections A7-1 and A7-4 had nearly hori- 



Iselin, C. O'D. (1936) A study of the circulation of the 

 western North Atlantic. Paper in Phys. Oceanog. and 

 Meteor., 4(4), 1-101. 



LaFond, E. C. (1951) Processing oceanographic data. U.S. 

 Navy Hydrographic Office Pub.. 615. 114 pp. 



NODC (1964) Processing physical and chemical data from 

 oceanographic stations. National Oceanographic Data 

 Center Pub., M-2, 117 pp. 



UNESCO (1966) International Oceanographic Tables. 

 UNESCO, Paris and National Institute of Oceanography 

 of Great Britain, Wormley, England, 118 pp. 



USNHO (1955) Instruction manual for oceanographic ob- 

 servations. U.S. Hydrographic Office Pub., 607, 

 201 pp. 



USNOO (1967) Oceanographic Atlas of the North Atlantic 

 Ocean, Sec II, Physical Properties, U.S. Naval 

 Oceanographic Office Pub.. 700, 300 pp. 



USNOO (1969) Historical Mean Surface Temperature Data 

 Western North Atlantic, The Gulf Stream (Supplement). 

 U.S. Naval Oceanographic Office. 16782-GS (Supp. 1). 



Worthington, L. V. (1959) The 18° water in the Sar- 

 gasso Sea, DSR, Vol. 5, pg 297-305. 



