Preferential uptake of NH4+ over NO3− in marine ecosystem models: A simple and more consistent parameterization

S.M. Vallina and C. Le Quéré

Ecological Modelling, 2008, vol. 218, issue 3, 393-397

Abstract: Here we present and analyse the behaviour of four different parameterizations of the preferential uptake of NH4+ over NO3−. The first three (Wroblewski–Fasham, Spitz, Hurtt and Armstrong) are commonly used in current marine ecosystem models. However, they show either formulational inconsistencies (e.g. Wroblewski–Fasham), unrealistic features (e.g. Spitz) or structural rigidity (e.g. Hurtt and Armstrong). We therefore suggest a newer parameterization by slightly modifying the Wroblewski–Fasham formulation that easily overcome these deficiencies and could be used in the next generation of marine ecosystem models.

Keywords: Preferential uptake; Ammonium; Nitrate; Phytoplankton; Marine ecosystem model; Parameterizations (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:218:y:2008:i:3:p:393-397

DOI: 10.1016/j.ecolmodel.2008.06.038

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