Team 3694 Page 9 of 37 h L Figure 4: Differential volumes of the ice sheet Initially, the height h is calculated using data provided by Williams et al Vol 26×10°km 1498/m brace 1736×106km alculated by subtracting the amount of ablation by the amount of accumulation ance is The primary mode of sea level rise in our model is through mass balance. Mass bal Accumulation, the addition of ice to the ice sheet, is primarily in the form of snowfall Ablation is primarily the result of two processes, sublimation and melting Mass balance-Accumulation First we model accumulation huybrechts et al showed that the temperature of greenland is not high enough to melt significant amounts of snow Furthermore Knight showed empirically that rate of accumulation is well-approximated by a linear relationship with time, and that accumulation over greenland continental ice is 0. 30 m/year. Thus, the accumulation rate is 0.025 m/month. In terms of mass balance f=0.025LD where the product ld is the surface area of the ice sheetTeam # 3694 Page 9 of 37 Figure 4: Differential volumes of the ice sheet Initially, the height h is calculated using data provided by Williams et al . km km km Surface Vol h ice ice 1498 1.736 10 2.6 10 6 2 6 3 = × × = = The primary mode of sea level rise in our model is through mass balance. Mass balance is calculated by subtracting the amount of ablation by the amount of accumulation. Accumulation, the addition of ice to the ice sheet, is primarily in the form of snowfall. Ablation is primarily the result of two processes, sublimation and melting. Mass Balance – Accumulation First we model accumulation. Huybrechts et al showed that the temperature of Greenland is not high enough to melt significant amounts of snow. Furthermore, Knight showed empirically that rate of accumulation is well-approximated by a linear relationship with time, and that accumulation over Greenland continental ice is 0.30 m/year. Thus, the accumulation rate is 0.025 m/month. In terms of mass balance, M ac = 0.025LD (5) where the product LD is the surface area of the ice sheet