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STELLA modeling as a tool for understanding the dynamics of earth systems

David M. Bice
David M. Bice
Department of Geosciences, Pennsylvania State University, University Park, Pennsylvania 16802, USA
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January 01, 2006

Earth system science represents an important new way of looking at our planet, but it is difficult to help students learn, in an experiential mode, about the complex dynamics of earth systems. Here, I describe how the computer program STELLA can be used to construct and then experiment with a variety models to illustrate some important concepts of systems dynamics. A very simple model of a bath tub with a faucet and a drain serves to illustrate a wide range of systems concepts including residence time, response time, lag times, and feedback mechanisms. Variations on the bath tub model provide examples that illustrate the problem of model complexity versus simplicity. A more complicated model of the global carbon cycle is used to demonstrate one means of model validation, testing the model against the historical record of CO2 buildup in the atmosphere, using as input the historical record of fossil fuel emissions and land use changes.

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GSA Special Papers

Earth and Mind: How Geologists Think and Learn about the Earth

Cathryn A. Manduca
Cathryn A. Manduca
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David W. Mogk
David W. Mogk
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Geological Society of America
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Publication date:
January 01, 2006



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