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HowtoUseSTELLA


Today's lab activities are the exercises described in Chapter 4 of Andrew Ford's Modeling the Environment (1999, Island Press). A copy is in [WWW]Edventure.

Ford describes several STELLA models of the hydrological dynamics of Mono Lake. He takes you from a simple model up through several layers of complexity. He gives you all the necessary equations and parameter values, so you should build the models he describes and try the simulation runs he suggests. It's interesting to start reading from the start of the chapter, but the impatient may skip to page 38.

Go as far through the chapter as time allows, and take time to experiment with as much of STELLA as you can. There's no homework for over break. If you still don't have the earlier microproject assignments done, please get them done over break.

If you find yourself bored over break and you've done all the previously assigned work, start working on group projects. Do library research into the phenomenon, if you need to. Start writing and testing code. I'll get comments back to everyone on the group-project proposals early during break, so you'll be able to refine and deepen your ideas. I'll also put general tips and strategies on the ModelingGroupProjects page.


(These diagrams are for when I write up a basic how-to guide to STELLA.

http://www.brynmawr.edu/biology/250/images/stock.jpg

http://www.brynmawr.edu/biology/250/images/stocks-and-flow.jpg

http://www.brynmawr.edu/biology/250/images/stocks-and-clouds.jpg

http://www.brynmawr.edu/biology/250/images/stock-flow-info.jpg

http://www.brynmawr.edu/biology/250/images/flow-and-converter.jpg