OUTFLOWS:
LIGHT_DAISY_DEATH ¼ LIGHT_DAISY_AREA * DEATH_RATE
DAISY_AREA ¼ LIGHT_DAISY_AREA+DARK_DAISY_AREA {Fraction of
area covered by daisies}
DARK_DAISY_ALBEDO ¼ 0.25
DARK_DAISY_GROWTH ¼ 1 À 0.003265 * (25 À DARK_DAISY_TEMP)^2
DARK_DAISY_TEMP ¼ LOCAL_TEMP_FUNC * (WORLD_ALBEDO À
DARK_ DAISY_ALBEDO) + WORLD_TEMP
DEATH_RATE ¼ 0.3
FERTILE_AREA ¼ 1
GROUND_ALBEDO ¼ 0.5
GROUND_AREA ¼ 1 À DARK_DAISY_AREA À LIGHT_DAISY_AREA
{Fraction of total area not covered by daisies}
LIGHT_DAISY_ALBEDO ¼ 0.75
LIGHT_DAISY_GROWTH ¼ 1 À 0.003265 * (25 À LIGHT_DAISY_TEMP)^2
LIGHT_DAISY_TEMP ¼
LOCAL_TEMP_FUNC * (WORLD_ALBEDO
À LIGHT_DAISY_ALBEDO) + WORLD_TEMP
LIGHT_FLUX ¼ 9.17e2 {W/(sec m^2)}
LOCAL_TEMP_FUNC ¼ 20
NO_DAISY_AREA ¼ FERTILE_AREA À LIGHT_DAISY_AREA À DARK_
DAISY_AREA {Fraction of fertile area not covered by daisies}
STEFANS_CONSTANT ¼ 5.6703eÀ8 {W/(m^2 K^4)}
SUN_LUMINOSITY ¼ IF TIME < 150 THEN 0.01 * TIME ELSE 1.5À0.01 *
(TIMEÀ150)
WORLD_ALBEDO ¼ (LIGHT_DAISY_AREA * LIGHT_DAISY_ALBEDO +
DARK_DAISY_ALBEDO * DARK_DAISY_AREA
+ GROUND_AREA
* GROUND_ALBEDO)
WORLD_TEMP ¼ ((SUN_LUMINOSITY * LIGHT_FLUX * (1 À WORLD_
ALBEDO))/STEFANS_CONSTANT)^0.25 À 273
References
1. Lovelock JE (1988) The ages of Gaia. Norton, New York
2. Watson AJ, Lovelock JE (1983) Biological homeostasis of the global environment. Tellus
35B(4):284
References
423