ICEBERG SIZE CLASSIFICATION 



Table5: from Osmer( 1974) 



1976 - In Appendix A (p. 58), tabular and non-tabular iceberg measurements are mentioned in a 

 report by R.Q. Robe called "Size Frequency and Distribution of Grand Banks Icebergs", citing 

 Murray's 1968 report. 



1983 - Appendix C of this report details the characteristic lengths of icebergs used in the IIP 

 iceberg deterioration model in use at that time (Anderson, 1983). Table C-l is reproduced below. 

 Anderson specifically indicates that the berg lengths are those used by IIP to classify icebergs, 

 except for the large, which "was chosen arbitrarily." 



Table C-1: Reproduced from Anderson(1983) 



No new information, including size tables, charts or references, was found from 1984 to 

 present. The years not mentioned in the findings had no references to sizes or were no different 

 from the previous year. 



In the course of research, an 1890 report written by ENS Hugh Rodman, USN, was 

 discovered to list some measurements for an average iceberg in the Arctic (by today's standard 

 the berg would be considered very large). The report mentions these measurements: "from 60 to 

 100ft to the top of its walls, whose spires or pinnacles may reach from 200 to 250ft in height and 

 from 300 to 500 yards in length, is considered an average size berg in the Artie." [sic] 



Conclusion 



The detailed description of the size categories has changed over HP's history. It is not 

 clear from the annual reports exactly when the original categories were defined. In early reports 



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