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B ulletin No . 90 REPORT OF THE INTERNATIONAL IC E PATROL IN THE NORTH ATLANTIC Se aso n of 2004 CG - 1 88-59 ’ l n a a Pa describin Pa serv ices h r with B ul eti No . 90 Forwarded e e is of the Intern tion l Ice trol , g Ice trol s O 27 A 2004 a 2004 a . and ice observations and conditions during the se son pening on pril , the se son War - a - r a a La a marked the latest opening date on record . mer th n no m l winter temper tures off the br dor coast coupled with a series of powerful low —pressure systems during January resulted in limited sea— ice growth and the destruction of icebergs that would normally reach the shipping lanes during Febru ary and March . a a l a n Pa a Though light se son , the fol owing Core V lues gover ed Ice trol ctivity , ensuring continued operational excellence : Partnerships B uilt on the Spirit of Interna tional Coop eration Continuous Improvement through the Use of Technology Individual Commitment to the IIP Mission Nowhere is the spirit of international cooperation better demonstrated than in the collaborative work of N A a IIP a of r 2004 the orth meric n Ice Service , in which bec me one th ee component services in , joining ’ P a i Na a and a a a . a a the U S . tion l Ice Center the C n di n Ice Service Ice trol s p rticip tion in th s group k a a a and a spar ed continuous process improvement , p rticul rly in upgr ding the iceberg drift deterior tion IIP to a a a and model (outlined in Appendix E) . continued v lid te the use of s tellites for detecting k still A . W identifying icebergs ( ppendix D) hile much wor is needed , this technology holds hope for IIP k to mi n ai a . a the future of iceberg reco n ss nce In ddition , loo s to its history inspire com tment to the ’ — a one al r . mission . The cover of this ye r s report depicts of sever iceberg destruction expe iments A a Appendix C is a fascinating article documenting the history of these experiments . lthough we h ve our a of IIP to been unsuccessful in ttempts to destroy icebergs , the crew continues diligently monitor a and k a a a i iceberg d nger reduce the ris of iceberg collision by providing ccur te , timely w rn ngs to transatlantic shipping . I hope you enjoy reading this report of the 2004 season . H k M . R . ic s ma a a Com nder, U . S . Co st Gu rd m a Intemational Pat Co m nder, Ice rol Inte rnatio nal Ic e Patro l 2004 Annual Re po rt Co ntents List of Abbrev iations and Acronyms Introduction Summary of Operations Iceberg Reconnaissance Oceanograph ic Operations Ice and Env ironmental Cond itions Month ly Sea Ice C harts Biweekly Iceberg C harts Acknowledgements Appendi x A: Natio ns C urre ntly S uppo rting I nte rnatio nal Ic e Patro l Appendi x 8 : S h ip R e po rts Appendi x C : I ce be rg De molitio n Expe rime nts Appendi x D: I ce be rg R ec o nnaissance Using ENVISAT Append i x E: I ce be rg Dete rio ratio n Estimate s : A Mo de l C o mpariso n Ordering Past IIP Ann ual Reports from NTIS Back Cov er v r h h I i n June 1 960 . Co e p otograp : ceberg destruct o using thermite . List of Abbrev iatio ns and Acro nyms Area of Responsibility Advanced Synthetic - Aperture Radar Air- deployed expendable B athyThermograph iceBerg Anal ysis and Prediction System Communications AreaMaster Station atLANTic Canadian Coast Guard Canadian Ice Service Department of Fisheries and Oceans ENV Ironmental SATellite Forward - Lo oking Airborne Radar File Transfer Protocol Global Monitoring for Environment and Security High Frequency Horizontal transmit Horizontal receive ’ Her Majesty s Canadian Ship Horizontal transmit Vertical receive Iceberg Detection Software International Ice Patrol INtemational MARitime SATellite (al so Inmarsat) Ice Reconnaissance Detachment Incident Swath Limi t of A11 Known Ice MAN11 211 of standard procedure s for observ ing and reporting ICE conditions Meter Motor Vessel National Ice Center National Technical Information Service Nautical Mile Provincial Aerospace Limited Probability Of Classiﬁcation Prob ability Of Detection Radio Detection And Ranging (also radar) Royal M ail Steamer Safety Of Life At Sea Side - Lo oking Ai rborne Radar Sea Surface Temperature Wh at - If Model WOGE World Ocean Circulation Experiment I ntrod uction th 90 a a n a a Pa a a This is the nnu l report of the I tern tion l Ice trol , which is under the Oper tion l A a Ar i of m a U S . a a a. a a on IIP control Co m nder, Co st Gu rd tl ntic e The report cont ns inform tion a a and N A a oper tions , environment l conditions , iceberg conditions in the orth tl ntic during the 4 F 1 a and a a P 200 a . 7 U S . a se son unded by member n tions conducted by the Co st Gu rd , Ice trol 1 1 3 ri f was a Titanic a k on 1 5 A ri 1 9 1 2 . 9 o formed soon fter the RMS s n p l Since , except for pe ods W Wa Pa has b a a a a k of the orld rs , Ice trol een monitoring iceberg d nger ne r the Gr nd B n s a and Newfoundland and broadcasting the Limit of All Known Ice to mariners . The ctivities 46 3 8 3 a- 7 d and IIP are a U S . 7 7 8 38 responsibilities of deline ted in Code , Title , Sections , the 4 I a a a of L at Sea 1 97 . ntern tion l Convention for the S fety ife , ’ a a Pa a a a a . The Intern tion l Ice trol conducted eri l reconn iss nce from St John s , N a to ar for a and of ewfoundl nd se ch icebergs in the southe stern , southern , southwestern regions P a ank . a to HP a a a a a the Gr nd B s In ddition reconn iss nce d t , Ice trol received iceberg reports from ’ Pa a / Ber e No ra for other aircraft and mariners in the North Atlantic . (Ice trol s lutes M V g 2 4 A 00 a . t O a providing the most ship reports during the se son ) the per tions Center in Groton , t a a and a a a and a to Connec icut , personnel n lyzed iceberg environment l d t used computer model ’ n n ri a d ri a . a o HP predict iceberg d ft dete or tion B sed the model s prediction , produced iceberg a warnings that were broadcast twice a day to mariners as text bulletins and charts . In ddition to IIP a a al a . these routine bro dc sts , responded to individu requests for iceberg inform tion H w m ar A Ar r A a a . as a . a a a Vice dmir l J mes D ull Com nder, U S Co st Gu d tl ntic e th ough 1 2 4 w H k wa 6 00 as A a . a. a . s July , when he relieved by Vice dmir l Vivien S Cre CDR Mich el R ic s m n P a a a a . Com nder, I tern tion l Ice trol For a a a a Pa and more inform tion bout the Intern tion l Ice trol , including iceberg bulletins a at ch rts , visit our website Summary of Operatio ns ’ 4 International Ice Patrol actively daily until the season s close on 27 July 200 . monitors the iceberg danger to transatlantic The opening on 27 April marked the latest start ° ° N All a 40 N 52 N a a . : shipping in the region bounded by , , to se son on record ote inform tion ° ° 39 W and 57 W F ure Patrol a i ma , ( ig Ice report st tist cs presented in this sum ry refer ri 1 F r 2 formal ly begins ice reconnaissance and product to the pe od of 3 ebru a y to 7 July . ’ dissemination when icebergs threaten the International Ice Patrol s Operations a a E and a a prim ry shipping l nes between urope Center in Groton , Connecticut n lyzed N Am h l IRD a h a. a a a s orth eric T is thre t usu ly begins in inform tion reports from , merch nt s ips , F a and h IIP a a a a a i ebru ry extends t rough July , but C n di n Ice Service reconn iss nce ﬂ ghts , a Na a and commences oper tions when iceberg conditions the tion l Ice Center, other sources E i a a F ure Two - - two of dictate . xcept dur ng unusu lly he vy ice ( ig hundred seventy these ar a a k N a are a a F i ure ye s , the Gr nd B n s of ewfoundl nd reports cont ined ice inform tion ( g normally free of icebergs from August to ranging from single or multiple iceberg n a a .

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