Greenland Ice Sheet Melting Hannah Bourne EPS 109 Fall 2013.

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Presentation transcript:

Greenland Ice Sheet Melting Hannah Bourne EPS 109 Fall 2013

Methods Simulated melting of Greenland Ice Sheet and predicted sea level rise Found the coordinates of Greenland and used data from “topography_180x360_grid.txt” Created a new Greenland.txt file that has a size of 28 by 51 Made two additional matrices:  Greenland_Ice (height of ice block)  Greenland_Temp (temperature of each pixel) Simplified initial conditions:  Set a constant temperature of 5 degrees Celsius for the air over the ocean and -2 degrees for the ice in the ice block  Covered Greenland (i.e. all land) in a constant thickness of ice (40 units) Used the heat diffusion equation If the corresponding Greenland_Temp of a Greenland_Ice pixel became >=0, I decreased the altitude of that ice pixel by 0.1 units Ran as a while loop “while max(max(Greenland_Ice))>=0” If all of Greenland Ice were to melt it is predicted that sea level would rise 7.9 meters. I then calculated how much sea level rose using a modified ocean area code from lab, but due to bad resolution, can only see a.4% increase in ocean area To run my code, the Greenland.txt file needs to be added to the path, because it is read in, then run the code “Final_Ice_2.m”

HANNAH BOURNE Greenland Ice Sheet Melting Simulation