Arctic Ocean primary production from 1980-2015 : implications of biogeochemical model parameterizations / Nadja Steiner, Jim Christian, Olivier Riche, Tessa Sou. : Fs97-6/3561E-PDF

"Modelling studies addressing the spatial and temporal evolution of Arctic primary production (PP) show large differences among models. These differences affect the credibility of climate projections and our ability to assess impacts on higher trophic level species. Model intercomparisons have shown that many differences in biogeochemical outputs are related to the models' physical fields, e.g., ice and snow coverage (impacting light), and water column stratification (impacting nutrient supply). Here, we evaluate three biogeochemical models within the same 3D physical ocean-ice-snow model of the Arctic. We evaluate simulated trends and regional averages of PP and vertical patterns of chlorophyll-a (Chla) concentrations over the time period 1980-2015 and augment the analysis with sensitivity studies in a 1-D model framework"--Abstract, page iv.

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