1968 - In May, J.E. Murray publishes a report written for an Ice Seminar in Calgary, Alberta 

 sponsored by the Petroleum Society of CIM called "The Drift, Deterioration and Distribution of 

 Icebergs in the North Atlantic Ocean". Table 3 (below) reproduces the table shown in that report 

 and Table 4 is the same table but converted into meters without rounding. 



Table 3: from Murray(1 968) 



Table 4: metric conversion of Murray(1968) 



As seen in the above tables, Murray did not list growlers or bergy bits, however the 

 conversion from feet to meters shows that the values provided for non-tabular bergs are similar to 

 the size measurements found on the legacy IIP iceberg sizing chart. These iceberg measurements 

 show only a meter difference for the medium, large and very large category. Also. Murray 

 differentiates between tabular and non-tabular icebergs. 



1974 - First and only use of a Berg Sizing Table (mentioned in an evaluation report of 

 possible satellite use by LTJG S.R. Osmer, USCG) (Table 5). There is no reference to the source 

 of the measurements. 



Two of the key differences between Table 5 and the legacy IIP iceberg sizing chart are the 

 actual berg lengths and the differing measures for tabular and non-tabular bergs. The legacy IIP 

 iceberg sizing chart uses only a general size without differentiating between tabular and non- 

 tabular bergs. Table 5 also includes the first size descriptions for growlers and bergy bits. 



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