FOREWORD 



Herewith is presented the report of the International Service of Ice 

 Observation and Ice Patrol in the North Atlantic Ocean for the season 

 of 1941. In anticipation of the coming ice season, the cutters Champlain, 

 Chelan, Cayuga, and General Greene had been designated and readied in 

 February as the vessels of the 1941 ice patrol, the first three as patrol 

 cutters and standby, and the General Greene as oceanographic vessel. 

 Comdr. Paul K. Perry, U. S. C. G., in Champlain, as senior Commanding 

 Officer of the ice patrol vessels was designated Commander, Inter- 

 national Ice Patrol on 18 February, 1941, and continued as such until 

 the cancellation of his designation on 22 April, 1941. Lt. W. P. Hawley, 

 U. S. C. G., was to be Ice Observation Officer. However, on 4 April, 

 1941, Champlain and Chelan were withdrawn from the ice patrol and 

 the only unit to leave the United States on ice patrol duty was the 

 General Greene under the command of Chief Boatswain C. Lawrence 

 Jordan, U. S. C. G., who, after 22 April, 1941, being senior officer present, 

 acted as Commander, International Ice Patrol, for the remainder of the 

 season. 



The scientific work was under the supervision of Principal Physical 

 Oceanographer, Floyd M. Soule, U. S. C. G. who was assisted by 

 Associate Physical Oceanographer, Clifford A. Barnes, U. S. C. G. 

 Gilbert Oakley, Jr., of the Woods Hole Oceanographic Institution, 

 was present on all cruises of the General Greene as a guest investigator 

 in connection with the further development of the bathythermograph 

 and its associated equipment. 



The ice season was one of the lightest on record and it was not neces- 

 sary to inaugurate a continuous surface vessel patrol. It is estimated 

 that only two bergs drifted south of the 48th parallel during 1941. 



