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Global warming description using Daisyworld model with greenhouse gases
Susana L D Paiva1, Marcelo A Savi1, Flavio M Viola1
1Universidade Federal do Rio de Janeiro, COPPE - Department of Mechanical Engineering, P.O. Box 68.503, 21.941.972 Rio de Janeiro, Brazil.
Bio Systems
|September 20, 2014
Summary
This study enhances the Daisyworld model to simulate global warming, incorporating greenhouse gas effects. Numerical simulations reveal how these gases influence planetary dynamics under varying solar luminosity.
Area of Science:
- Earth System Science
- Climate Modeling
- Ecological Dynamics
Background:
- The Daisyworld model provides a framework for understanding Earth's climate regulation through biosphere-environment interactions.
- Existing models often simplify or omit the complex feedback loops associated with greenhouse gas emissions and absorption.
- Global warming necessitates advanced models capable of capturing intricate climate dynamics.
Purpose of the Study:
- To adapt the archetypal Daisyworld model to incorporate greenhouse gas (GHG) dynamics.
- To analyze the influence of GHG emissions and absorption on global and local planetary dynamics.
- To explore the phenomenon of global warming through a nonlinear dynamics perspective.
Main Methods:
- Model development based on the original Daisyworld, integrating GHG emission and absorption processes.
- Global and local analyses to assess the impact of GHGs on planetary dynamics.
- Numerical simulations under various scenarios, including changes in solar luminosity and GHG effects.
Main Results:
- The modified Daisyworld model demonstrates the capacity to describe global warming.
- Simulations show that greenhouse gases significantly influence planetary dynamics.
- Analysis reveals qualitative behaviors of the Daisyworld under different environmental conditions.
Conclusions:
- The enhanced Daisyworld model offers a valuable tool for understanding global warming.
- Greenhouse gas dynamics are crucial components in Earth's climate regulation.
- Nonlinear dynamics provide insights into the complexities of climate change and planetary stability.
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