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Steady states and sensitivities of commonly used pelagic ecosystem model components

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  • Löptien, Ulrike

Abstract

Pelagic, coupled ocean circulation-ecosystem models, are widely used in climate research. These tools aim to quantify fluxes of nutrients and carbon in the ocean and are, increasingly, the base of future projections. For this purpose it is crucial to quantify and identify the sources of uncertainties. In contrast to physical models, the underlying equations for ecosystem models are derived from empirical relationships rather than based on first principles. This resulted in the development of a multitude of different ecosystem models – different in respect to both, underlying principles and complexity. Clearly, the question arises, to what extent the sensitivities of these models are comparable.

Suggested Citation

  • Löptien, Ulrike, 2011. "Steady states and sensitivities of commonly used pelagic ecosystem model components," Ecological Modelling, Elsevier, vol. 222(8), pages 1376-1386.
    • Handle: RePEc:eee:ecomod:v:222:y:2011:i:8:p:1376-1386
    DOI: 10.1016/j.ecolmodel.2011.02.005
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    1. Jef Huisman & Nga N. Pham Thi & David M. Karl & Ben Sommeijer, 2006. "Reduced mixing generates oscillations and chaos in the oceanic deep chlorophyll maximum," Nature, Nature, vol. 439(7074), pages 322-325, January.
    2. Andreas Schmittner, 2005. "Decline of the marine ecosystem caused by a reduction in the Atlantic overturning circulation," Nature, Nature, vol. 434(7033), pages 628-633, March.
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