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The consequence of maximum thermodynamic efficiency in Daisyworld.
1Department of Atmospheric Sciences, Texas A&M University, College Station, TX 77843-3150, USA. toni.pujol@udg.es
Journal of Theoretical Biology
|August 17, 2002
Summary
The maximum entropy principle (MEP) expands the habitable solar insolation range on Daisyworld. This Gaia hypothesis model shows enhanced climate stability with biota, especially with two daisy species.
Area of Science:
- Planetary science
- Theoretical ecology
- Climate modeling
Background:
- Daisyworld is a simple model for Gaia hypothesis implications.
- Classical Daisyworld has limited solar insolation range for biota growth.
Purpose of the Study:
- Apply the maximum entropy principle (MEP) to Daisyworld.
- Investigate how MEP affects climate stability and biota growth range.
Main Methods:
- Adapted heat transport in turbulent media to Daisyworld.
- Used MEP to determine optimal daisy distribution and insolation limits.
- Simulated planetary diffusivity and radiative interactions.
Main Results:
- MEP defines a larger solar insolation range for daisy growth.
- Biota-driven climate stability is significantly enhanced compared to classical Daisyworld.
- A highly stable temperature is achieved with two coexisting daisy species.
Conclusions:
- MEP broadens the conditions for life on Daisyworld.
- The model demonstrates increased climate resilience through biological regulation.
- MEP provides a framework for understanding biota-climate interactions.