Experiment with the Daisy World (“Daisy Ball”)
Daisy World is a quite simple mannequin of a system with exterior forcing (“photo voltaic luminosity”) and feedbacks (white and black daisies).
Photo voltaic luminosity will increase with time, and the system tries to maintain the temperature from rising (“steady local weather”) by altering the world coated by white and black daisies. White daisies choose hotter temperatures and have excessive albedo, black daisies choose colder temperatures and have low albedo. See notes for the “Local weather Feedbacks” lecture and on-line description at http://gingerbooth.com/flash/daisyball/ for extra particulars.
For this task, use the net mannequin at http://gingerbooth.com/flash/daisyball/DaisyBall.html. An instance of a “local weather simulation” is within the Determine 1 under. On the left of this determine, you see two graphs:
(prime plot) space taken by white (white line) and black (black line) daisies, and space that’s taken by naked land (brown line);
(backside plot) temperature of the Daisy World: precise temperature (purple) and temperature this planet would have if there have been no daisies (brown).
Because the time passes, the photo voltaic luminosity will increase in each plots.
FIGURE 1:
For the task:
1) Run the usual case (default parameters) and describe what you see
2) Now change the system parameters by clicking on “Superior” button. You will note a number of
choices (Determine 2). Change one of many parameters: albedo of black/white daisies, how briskly luminosity adjustments, daisy “deathrate” (minimal space coated by daisies), and so on. Describe how the system habits is totally different from the usual case. Clarify what you see.
FIGURE 2:
