BUOY 4545 





1000m 



42N 



+ 



+ 

 55W 



+ 

 47W 



Figure C- 1. Trajectory of Buoy 4545. 



the time history of the U (east is 

 positive) and V (north is positive) 

 components of velocity from the 

 filtered records. Finally, a time 

 history of the raw sea surface 

 temperature data is plotted for 

 each buoy. The dates used in all 

 of the plots are year-dates, which 

 are numbered sequentially from 

 January 1 . In the text, the year- 

 dates are included parentheti- 

 cally. 



BUOY TRAJECTORIES 



In the following sections each 

 buoy trajectory is discussed 

 separately, presented in chrono- 

 logical order by deployment date. 

 Only the operational buoys are 

 discussed. This includes two 

 buoys that were deployed from 



72 



BITTERSWEET and allowed to 

 drift free at the end of the experi- 

 ment and two buoys purchased 

 by, and deployed for, AES. 

 Buoys 4547 and 4558 were used 

 only during the research cruises. 

 Their data are reported in Appen- 

 dices D and E. 



The intent of the following discus- 

 sions is to summarize each 

 buoy's performance and the data 

 that it contributed to Ice Patrol 

 operations. It is not intended to 

 be an exhaustive data analysis. 

 The buoy data from the area east 

 of 39°W, the eastern boundary of 

 the Ice Patrol operations area, 

 are not presented. All of the data 

 from the IIP drifting buoy program 

 are archived at the IIP office in 

 Groton, Connecticut. 



FLEMISH CAP 



BUOY 4545 



Buoy 4545 (Figure C-1 , C-2) was 

 deployed and recovered four times 

 in 1987 (Table C-1), but only one 

 deployment was for operational 

 use. On 4 March (63) it was air- 

 deployed at 47-45N, 48-45W. It 

 provided position and temperature 

 data for 63 days until it was recov- 

 ered on 5 May (125) at 46-42N, 

 49-21 W by USCGC BITTER- 

 SWEET during IIP 87-1 . During 

 the entire period, the drogue 

 sensor showed that the drogue 

 remained attached; however, 

 when the buoy was recovered only 

 the 50 m nylon drogue tether and 

 the chain bridle that supports the 

 drogue were attached to the buoy. 

 The chain was badly abraided, 

 suggesting that it had dragged 



