An experimental, "on-line" model demonstracting the ability to run
an interactive model, in this case,  Fasham, M.J.R., H.W.  Ducklow, and S.M.
McKelvie (1990): A nitrogen-based model of plankton dynamics in the
oceanic mixed layer.  J.  Mar.  Res, 48, 591-639.
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You may change any one or more of model's parameters and run the model.
The model produces a dataset which can then be looked at with 
the standard tools.