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Related Experiment Videos

One-dimensional daisyworld: spatial interactions and pattern formation.

B Adams1, J Carr, T M Lenton

  • 1Department of Mathematics, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK. b.j.adams@ma.hw.ac.uk

Journal of Theoretical Biology
|July 24, 2003
PubMed
Summary

Life can regulate planetary environments, as shown by the extended daisyworld model. Heat diffusion creates stable, globally determined striped patterns, maintaining climate regulation.

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Area of Science:

  • Planetary Science
  • Climate Modeling
  • Theoretical Ecology

Background:

  • The original daisyworld model demonstrated life's ability to regulate global environments.
  • Previous models were zero-dimensional, lacking spatial complexity.

Purpose of the Study:

  • To extend the daisyworld model to one dimension, incorporating spatial dynamics.
  • To investigate the impact of heat diffusion on climate regulation and pattern formation.

Main Methods:

  • One-dimensional extension of the daisyworld model.
  • Inclusion of solar radiation distribution and heat diffusion.
  • Mathematical analysis of system stability and pattern formation.

Main Results:

  • Global regulatory properties were retained.

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  • Heat diffusion destabilized the coexistence equilibrium, leading to striped patterns.
  • Pattern formation is globally determined and resilient to transient perturbations.

    • Conclusions:

    • The one-dimensional daisyworld model maintains climate regulation.
    • Spatial dynamics and heat diffusion lead to emergent striped patterns.
    • Results have implications for climate modeling and understanding Earth's regulatory mechanisms.