those that were originally detected north of 

 48°N but whose model position drifted south of 

 48°N. No daily products were issued in 2006 

 and no individual icebergs were sighted or 

 experienced model drift south of 48°N. 



Because no icebergs drifted south of 

 48°N in 2006, IIP never issued daily products. 

 By all measures, 2006 was an extremely light 

 ice year. Table 1 lends some historical 

 perspective to the lightness of the 2006 ice 

 season. 



50 



150 



Days 



Figure 5. Length of ice season in days since 2002. 

 The climatological (2004-2006) mean is 31 days. 



400 600 



Icebergs 



800 



1000 



Figure 6. Count of individual icebergs (sighted and 

 drifted) south of 48°N since 2002. The 

 climatological (2004-2006)) mean is 91 icebergs. 



Table 1. Ranking of historically light ice seasons 

 based on cumulative number of bergs south of 

 48°N 



Canadian Support 



As they do every year, the Canadian 

 Government generously supported IIP during 

 2006. The Canadian Ice Service shared its 

 valuable reconnaissance data and ice expertise 

 with IIP. This year marked the first time CIS & 

 IIP operated with a synchronized database. 

 Appendix D describes this achievement in 

 detail. In addition, CIS provided IIP with 

 critical support of BAPS. Finally, Provincial 

 Aerospace Limited supplied IIP with invaluable 

 ice data. 



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. 



