24 



ICE 



(See Chart No. 6) 



The ice situation simplified itself considerably during this cruise, 

 and the menace to the northward was gradually disappearing. Only 

 one tongue of cold water remained, extending practically the full 

 length of the eastern slope of the Banks. Bergs that were caught in 

 this swirl drifted southward. On June 8 only seven bergs were in this 

 current. The ice on the Banks was practically stationary. Those 

 bergs to the east of the Banks moved about ESE. then eastward 

 and recurved northeastward. The Cape Race and "F" tracks were 

 seriously menaced by the bergs. The ice as a whole seemed to 

 remain in the cold water close to the Banks. Indications were that 

 as long as that flow was not checked the bergs would tend to 

 menace the Tail of the Banks, as was shown by berg No. 14 which 

 broke through the warm-water barrier by hugging the edge of the 

 Banks very closely while five other bergs proceeded due east from 

 approximately the same latitude but a few miles farther east in 

 longitude. At the close of the Tampa's cruise there was 1 berg 

 below 44° which was rapidly disintegrating; 4 between 48° and 

 49°; 26 between 47° and 48° of which 6 were west of longitude 

 49° 00' and 8 east of longitude 47° 00', and 4 between latitude 46° 

 and 47° of which 2 were west of longitude 48° and 1 east of longi- 

 tude 47°. In all cases these bergs were surrounded by numerous 

 growlers. Practically all the ice was between track "E" and track 

 ''B." June was particularly hard on the icebergs, it being ushered 

 in by a dense fog and warm rain which was followed by two heavy 

 gales with attending heavy seas. 



RESUME OF ICE 



Berg observed and reported 



May 25: Latitude 48° 45' N., longitude 50° 14' W., and again on May 30, 

 latitude 48° 26' N., longitude 49° 28' W., 125° true, 0.3 knot per hour. 



May 26: Latitude 48° 10' N., longitude 49° 15' W., and again on May 29, 

 latitude 47° 53' N., longitude 48° 39' W., 127° true, 0.37 knot per hour. 



May 27: Latitude 47° 38' N., longitude 48° 00' W., and again on May 30, 

 latitude 47° 17' N., longitude 47° 55' W., 158° true, 0.3 knot per hour. 



May 29: Latitude 47° 47' N., longitude 48° 18' W., and again on May 31, 

 latitude 47° 20' N., longitude 47° 32' W., 136° true, 0.6 knot per hour. 



May 29: Latitude 48° 13' N., longitude 47° 30' W., and again on June 4, 

 latitude 47° 46' N., longitude 46° 50' W., 141° true, 0.27 knot per hour. 



SIXTH CRUISE, "MODOC," JUNE 8-23 



The Modoc relieved the Tampa on June 8. The oceanographic 

 party was received on board. The vessel proceeded to the position 

 of the berg that had been under observation by the Tampa near the 



