FOREWORD 



The Naval Oceanographic Office (NAVOCEANO) is conducting research 

 in support of the Antisubmarine Warfare Environmental Prediction Ser^ 

 vices (ASWEPS) in the western North Atlantic. From this research has 

 evolved a series of technical reports designed to disseminate signifi- 

 cant research results. Early research demonstrated that the dynamic 

 processes at the northern edge of the Gulf Stream should be thoroughly- 

 investigated because the horizontal energy exchange and the complex 

 thermal structure in this area are of considerable importance to the 

 ASW effort. 



This report is based on an investigation of the structure and 

 dynamics of the Gulf Stream in 1967. Continuing NAVOCEANO study of 

 the dynamics of the Gulf Stream is reported in a monthly publication, 

 The Gulf Stream, vhich contains current research results and may be 

 consulted to supplement Information reported by ASWEPS technical reports, 



T. K. TREADWELL, JR. 

 Captain, U.S. Navy 

 Commander 



U.S. Naval Oceanographic Office 



