rate, much the same as the previous series. These runs also allowed the evaluation of the 

 algorithm's sensitivity to changes in wave period. When comparing sensitivity within the model, 

 there was around a 36% increase in the melt rate when the wave period was decreased from the 

 mean of 8 seconds to 5 seconds. There was a 20-30% decrease in melt rate when the wave period 

 was increased to 1 1 seconds. An example of the results due to decreasing wave period can be 

 observed through comparison of the slope of all the lines in Figure 1 and 2. In both models, it 

 appears that a larger change in deterioration occurs when the period is increased by 3 seconds 

 rather than when decreased by 3 seconds. This result is intuitive since an increase in the frequency 

 that an iceberg is bathed by relatively warm water and impacted by wave energy would increase 

 deterioration and vice versa for a decrease in the frequency. 



Figure 2: The percent melt for each iceberg for both WIM's during the first 10 days of the run. This run was 

 conducted at an SST of 12°C, wave height of 4ft, and wave period of 1 1 seconds. The sinall, medium, and large 

 icebergs produced similar results. 



The last series of runs modeled the effect of wave height on deterioration while holding 

 SST and wave period constant. As with the previous runs, the 1 .4 and 1 .7 models melted linearly 

 and at the same rate. Sensitivity to changes in wave height were observed by a 33-36% increase in 

 melt rate when the wave height was increased to 7 ft and a 63-70% decrease when wave height 

 was decreased to 1 ft, by noting the increased slope. The effect of increasing wave height can be 

 observed in Figure 3. It appears that when varying wave period, a much larger change is seen than 

 when wave height is increased. 



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