a. The iceberg deterioration 

 model predicted the iceberg has melted 

 (Anderson, 1983). 



b. The area around the pre- 

 dicted position of the iceberg has been thor- 

 oughly searched either through visual or 

 double radar coverage. 



Discussion 



During the 1996 season, 110 icebergs 

 determined the LAKI. Table 1 , lists the sources 

 of the limit-setting icebergs when they were 

 initially sighted, or first entered into the ice- 

 berg drift model, and when they were last 

 sighted in the area of the LAKI. As in the pre- 

 vious season (Tuxhorn and Krein, 1995), the 

 table shows that IIP reconnaissance was the 

 primary contributor of icebergs that eventu- 

 ally established the LAKI and the major sight- 

 ing source of the icebergs prior to their melt- 

 ing completely and removal from the model. 



Table 2, shows the initial sighting 

 sources for the three categories of icebergs: 

 westem, southern, and eastern limit-setters. 

 Examination of the numbers reveals that IIP 

 provided the majority of the sightings on all 

 three sides of the LAKI. Ship reported limit- 



setters were mostly near the eastern and 

 southern regions. And, iceberg reports from 

 Canadian AES (GCFR), Other Air Recon 

 (GPCD), and BAPS contributed a combined 

 number of limit-setting icebergs roughly 

 equivalent to the number provided by ships. 



Table 2 

 Initial Iceberg Sighting Sources With 

 Respect to LAKI Region 



The size distribution of the limit-setting 

 icebergs, as reported by the final sighting 

 source, is displayed in Table 3. Over half of 

 the sightings were reported as "general sized 

 icebergs", which is the unspecified size used 

 for the most part to indicate icebergs detected 

 by IIP radar surveillance only. 



Table 3 

 Size Distribution of LAKI Icebergs 



•y..'. -i. . '... .i,'.^j'rii,';;'j^ 



40 



