12.300 Global Change Science - Stone Problem Set 2 (Fall 2002)

This problem set uses a very simple 1-dimensional atmosphere - ocean model to give you a feeling for how different parameters affect the rate of warming of the atmosphere and of the upper ocean.

It is a matlab program which you will need to run from your athena account. To do so please follow these steps:

  1. Download the program code by clicking here .
  2. Press Alt+S or go to Files/Save as... at the top of you Netscape browser. Press the OK button.
  3. You also need to download an example of the input file here.
  4. Start matlab by going to Numerical/Math on the top of the screen, then Analysis and Plotting then Matlab
  5. In the matlab window, typing clim1D at the prompt will run the program.
  6. You do not have to modify the code!
  7. Typing print at the prompt will print your graph.
  8. Typing quit at the matlab prompt will quit the program.
The input parameters are as follows (given in input.dat):
     
    Date The date in years (e.g. 1880 etc)
    DCO2 Change in atmospheric carbon dioxide from the 1880 value (293 ppm) in ppm.
    DCH4 Change in atmospheric methane form the 1880 value (1.6 ppm) in ppm.
    DN2O Change in atmospheric nitrous oxide form the 1880 value (0.300 ppm) in ppm.
    DCC2 Change in CCl3F from the 1880 value (0 ppb) in ppb.
    DCC3 Change in CCl2F2 from the 1880 value (0 ppb) in ppb.
    DV Change in atmospheric optical depth from a baseline level due to volcanic activity in dimensionless units.
    DS Change in solar luminosity from a baseline level in fractional units.


Good luck, e-mail me if you have any questions!

Back to index
Kerim Nisancioglu
M.I.T. Room 54-1715

x3-3715