The HC-1 30 'Hercules' aircraft has been 

 the preliminary platform for Ice Patrol aehal 

 reconnaissance since 1 963. This was the fifth 

 year for the HU-25B to serve as an Ice Patrol 

 platform. The extended iceberg distribution 

 throughout most of the season warranted the 

 use of the HC-1 30 rather than the HU-25B. 

 Thus the HU-25B logged significantly less IIP 

 flight hours than the HC-1 30. The total num- 

 ber of flight hours and sorties increased slightly 

 from 576.3 flight hours / 1 51 sorties in 1 991 to 

 623.6 flight hours/ 167 sorties in 1992. 



Each day during the ice season, IIP 

 prepared the OOOOZ and 1200Z ice bulletins 

 warning mariners of the southwestern, south- 

 ern, and southeastern limits of icebergs. U. S. 

 Coast Guard Communications Station Bos- 

 ton, Massachusetts, NMF/NIK, and Canadian 

 Coast Guard Radio Station St. John's New- 

 foundlandA/ON were the primary radio sta- 

 tions 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 Norfolk/NAM, Virginia, and Key West, 

 Florida. 



IIP also prepared a daily facsimile chart 

 graphically depicting the limits of all known ice 

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

 Communications Station Boston assisted with 

 the transmission of these charts. Canadian 

 Coast Guard Radio Station St. John'sA/ON 

 and U.S. Coast Guard Communications Sta- 

 tion Boston/NIK provided special broadcasts 

 as required. 



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 

 request is shown in Table 5. Appendix A lists 

 all contributors. IIP received relayed informa- 

 tion from the following sources during the 

 1 992 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 Halifax/VCS; 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 CAST POLAR BEAR was the numberone 

 reporter. 



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. 



As in previous years. The International 

 Ice Patrol requested that all ships transiting 



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