International 



Ice Patrol 



1986 Annual Report 



Contents 



4 Introduction 



5 Summary of Operations 



7 Iceberg Reconnaissance and Communications 



8 Environmental Conditions, 1986 Season 

 17 Ice Conditions, 1986 Season 



38 Discussion of Iceberg and Environmental Conditions 



38 Acknowledgements 



Appendices 



39 A. List of Participating Vessels 



45 B. TIROS Oceanographies Drifter Tracks on the 



Grand Banks During the 1986 International Ice 



Patrol Season 

 53 C. Observations of an Oceanic Front South of 



Flemish Pass 



