From 27 September (270) until 

 1 6 October (289), TOD #4544 

 drifted in a southeasterly direction 

 at 26 cm/s until it was caught in 

 the North Atlantic Cun-ent. 

 Between 16 October (289) and 

 30 October (303), TOD #4544 

 drifted with the North Atlantic 

 Current at 53 cm/s. As of 30 

 October, TOD #4544 was still 

 transmitting from within the IIP 

 region. 



TOD Results and 

 Conclusions 



The variability of the flow in the IIP 

 region is again well-depicted by 

 this year's TOD drift tracks. The 

 areas northeast and south of 

 Flemish Cap, in particular, 

 illustrate the variability that exists 

 in the IIP region making drift 

 prediction so difficult without near- 

 real-time inputs. As shown in 

 previous years, the bathymetry of 

 the Grand Bank and Flemish Cap 

 plays a major role in guiding the 

 drifts of TODs (Anderson, 1984). 

 The only TOD (#4541) not 

 apparently guided bathymetrically 

 in this area apparently had lost its 

 drogue. 



TODs continue to supply IIP with 

 needed real-time current 

 infomiation that is required to 

 improve iceberg drift prediction. 

 IIP intends to continue using 

 TODs operationally. The data 

 from all future TODs will be 

 entered into the Global 

 Telecommunications System 

 (GTS). The historical current file 

 east and north of Flemish Cap will 

 be examined for possible 

 changes based upon 

 accumulated TOD drift tracks. 



As a footnote, three of the TODs 

 released in 1984 have grounded 

 in Europe. TOD #451 2 ran 

 aground nearChertxjrg, France 

 on 27 September 1985 and was 

 taken to Brest, France, TOD 

 #4528 grounded on the island of 



62 



Figure C-3e. July 12-15, 1985 

 Figure C-3f. August 16-19, 1985 



