The use of optimization techniques to model marine ecosystem dynamics at the JGOFS station at 47° N 20° W

• Published in: Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Royal Society 1995
• Subjects: North Atlantic
• Online Access: http://dx.doi.org/10.1098/rstb.1995.0062; https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.1995.0062

A seven-compartment model of the mixed layer ecosystem was used to fit a time series of observations derived from data obtained during the 1989 JGOFS North Atlantic Bloom Experiment. A nonlinear optimization technique was used to obtain the best fit to the combined observation set. It was discovered that a solution which gave a good fit to primary production gave a bad fit to zooplankton and vice versa. The solution which fitted primary production also showed good agreement with a number of other independent data sets, but overestimated bacterial production. Further development is necessary to create a model capable of reproducing all the important features of the nitrogen flows within the mixed layer.