characterized by its high salinity. This in- 

 fluence was particularly strong during the 

 May-June 1968 occupation (fig. 51) when the 

 water mass at intermediate depths was made 

 up of approximately 35 percent Mediterranean 

 Water, as computed from Defant's standard 

 curve. 



Ocean Station ECHO was occupied during 

 the passage of hurricane BRENDA from 18-26 

 June 1968. BRENDA maintained huricane in- 

 tensity for little more than a day, with maxi- 

 mum surface winds of 65 knots occurring on 23 

 June 1968. The storm was downgraded to a 

 tropical storm on 24 June, and passed 120 miles 

 north of ECHO at 1300Z, 25 June 1968. The 

 track of the storm center is shown in Figure 

 58. As the storm approached ECHO, a drop in 

 sea surface temperature (21.98 to 21.03"C) oc- 

 curred between 22 and 25 June 1968. Sea sur- 

 face temperature remained near the low value 

 until 1 July 1968, when it began to increase at 



a rate of 0.35 '^C per day during the next 2 

 weeks. There was, however, no noticeable 

 change in the surface salinity values during the 

 passage of BRENDA. 



REFERENCES 



Defant, Albert (1961). Pity steal Oceanography, Vol I. 

 Pergamon Press, London, 729 pp. 



Morse, R. M., J. W. McGary (1964). Oceanographic 

 Observations at North Atlantic Ocean Station ECHO, 

 January-February 1963. U.S. Coast Guard Ocean- 

 ographic Report, CG 373-2 



Shuhy, J. L. (1969). Oceanographic Observations at 

 North Atlantic Ocean Station ECHO, September 

 1966-October 1967. U.S. Coast Guard Oceanographic 

 Report, CG 373-21 



SvERDRUP, H. U., M. W. Johnson, and R. H. Fleming 

 (1942). The Oceans; Their Physics, Chemistry, and 

 General Biology. Prentice Hall, New York, 1087 pp. 



UNESCO (1966). International Oceanographic Tables. 

 UNESCO Office of Oceanography, Paris, 118 pp. 



WUST, G. (1936). Schichtung and Zirkulation des Atl. 

 Ozeans, "Meteor" Werk, 6, 1 Berlin 



