2005 

 2004 

 2003 

 2002 

 2001 



I" 



262 



200 



400 600 

 Icebergs 



800 1 000 



Figure 6. Number of individual icebergs (sighted 

 and drifted) south of 48°N each year since 2001 

 (The 20-year [1986-2005] mean is 847.) 



and the number of days IIP establishes and 

 broadcasts a LAKI will vary with season 

 severity. 



Canadian Support 



As they do every year, the Canadian 

 Government generously supported IIP during 

 2005. The Canadian Ice Service shared its 

 valuable reconnaissance data and ice expertise 

 with IIP. In addition, CIS provided Ice Patrol 

 with critical support of BAPS. Finally, 

 Provincial Aerospace Limited supplied IIP with 

 invaluable ice data. 



in 2005, and IIP never opened the season, 

 which means that daily ice-limit products were 

 never issued. Therefore, according to Trivers 

 (1994) — who defined a light season as one that 

 lasts less than 105 days and has fewer than 300 

 icebergs south of 48°N — 2005 was an 

 extremely light ice year. 



Beginning with the 2006 ice season, IIP 

 will align its definition offseason" with that of 

 SOLAS, which designates the period from 15 

 February to 1 July as the ice season (sec 

 Appendix C for background). Consequently, 

 season length will be a fixed period each year, 



Customer Relations 



Based on survey feedback from 2004, 

 Ice Patrol initiated a third ice-chart broadcast 

 time in 2005. Therefore, in addition to the 

 1200Z charts transmitted at 1600Z and 1810Z, 

 IIP now broadcasts a 0000Z ice chart at 043 8Z. 

 This improvement highlights the importance of 

 communicating with customers. 



Unfortunately, however, IIP did not 

 conduct a customer survey in 2005 because 

 daily products were never issued. Ice Patrol 

 will request OMB approval to conduct a survey 

 in 2006. 



References 



Alfultis, M. (1987). Iceberg Populations South of 48°N Since 1900. Report of the 



International Ice Patrol in the North Atlantic, Bulletin No. 73, 63-67. 



Marko, S. R., Fissel, D. B., Wadhams, P., Kelly, P. M., & Brown, R. D. (1994). Iceberg 

 Severity off Eastern North America: Its Relationship to Sea Ice Variability and 

 Climate Change. Journal of Climate, 7(9), 1335-1351. 



Trivers, G. (1994). International Ice Patrol's Iceberg Season Severity. Report of the 

 International Ice Patrol in the North Atlantic, Bulletin No. 80, 49-59. 



