1 993 season required the use of the HC-1 30 

 rather than the HU-25B. Thus, the HU-25B 

 logged significantly fewer IIP flight hours than 

 the HC-1 30. The total number of flight hours 

 increased slightly from 623.6 hours in 1 992 to 

 667.0 hours in 1993. The number of sorties 

 decreased from 1 67 in 1 992 to 1 54 in 1 993. 



Each day during the ice season, IIP 

 prepared and distributed ice bulletins at OOOOZ 

 and 1200Z to warn mariners of the south- 

 western, southern, and southeastern limits of 

 icebergs. U. S. Coast Guard Communications 

 Station Boston, Massachusetts, NMF/NIK, and 

 Canadian Coast Guard Radio Station St. John's 

 NewfoundlandA/ON were the primary radio 

 stations responsible for the dissemination of 

 the ice bulletins. Other transmitting stations 

 for the bulletins included METOC Halifax, 

 Nova Scotia/CFH, Canadian Coast Guard 

 Radio Station HalifaxA/CS, Radio Station 

 Bracknel, UK/GFE, and U.S. Navy LCMP 

 Broadcast Stations Nortolk/NAM, Virginia, and 

 Key West, Florida. On 25 Mar 1 993, IIP began 

 broadcasting the OOOOZ and 1200Z ice bulle- 

 tins (in addition to safety broadcasts) over the 

 INMARSAT-C SafetyNet AOR-W satellite. 



request is shown in Table 5. Appendix C lists 

 all contributors. IIP received relayed informa- 

 tion from the following sources during the 

 1 993 ice year: Canadian Coast Guard Marine 

 Radio Station St. John's VON ; Canadian Coast 

 Guard Vessel Traffic Centre/Ice Operations 

 St. John's; Ice Centre Ottawa; Canadian Coast 

 Guard Marine Radio HalifaxA/CS; ECAREG 

 Halifax, Canada; U.S. Coast Guard Communi- 

 cations and Master Station Atlantic, Chesa- 

 peake, Virginia; and U.S. Coast Guard Auto- 

 mated Merchant Vessel Emergency Re- 

 sponse/Operations Systems Center, 

 Martinsburg, WV. Commander, International 

 Ice Patrol extends a sincere thank you to all 

 stations and ships which contributed reports. 

 The vessel with the most reports was the MA/ 

 SYN PULKU, a Polish flag vessel. 



Canadian Forces 727th Communica- 

 tions Squadron/St. John's Military Radio served 

 as the primary facility for air ground communi- 

 cations, and the 726th Communications 

 Squadron/Halifax Military Radio was the sec- 

 ondary facility. 



IIP also prepared adaily facsimile chart, 

 graphically depicting the limits of all known ice, 

 for broadcast at 1600Z daily. U. S. Coast 

 Guard Communications Station Boston as- 

 sisted with the transmission of these charts. 

 Canadian Coast Guard Radio Station St. 

 John'sA/ON and U.S. Coast Guard Communi- 

 cations Station Boston/NIK provided special 

 broadcasts as required. 



As in previous years. International Ice 

 Patrol requested that all ships transiting the 

 area of the Grand Banks report ice sightings, 

 weather, and sea surface temperatures via 

 Canadian Coast Guard Radio Station St. 

 John'sA/ON or U. S. Coast Guard Communi- 

 cations Station Boston/NIK. Response to this 



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