Play with the sliders to change parameters and initial conditions for the simple N(utrient)-P(hytoplankton)-Z(ooplankton)-D(etritus) ecosystem model.

The extended description and code can be found in my Jupyter notebook here. [Note this has been removed while Ocean Biogeochemistry is in session at CU Boulder, as it could serve as an answer key. If you have any questions about the model and visualization, please email me at]