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Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms
13 models of the ocean–carbon cycle are used to assess calcium carbonate saturation under the IS92a ‘business-as-usual’ scenario for future emissions of anthropogenic carbon dioxide and indicate that conditions detrimental to high-latitude ecosystems could develop within decades, not centuries as suggested previously.
The significance of nitrification for oceanic new production
It is shown that for much of the world ocean a substantial fraction of the nitrate taken up is generated through recent nitrification near the surface, and at the global scale, nitrification accounts for about half of the Nitrate consumed by growing phytoplankton.
MEDUSA-2.0: an intermediate complexity biogeochemical model of the marine carbon cycle for climate change and ocean acidification studies
MEDUSA-2.0 is introduced, an expanded successor model which includes additional state variables for dissolved inorganic carbon, alkalinity, dissolved oxygen and detritus carbon, as well as a simple benthic formulation and extended parameterizations of phytoplankton growth, calcification anddetritus remineralisation.
How well do global ocean biogeochemistry models simulate dissolved iron distributions?
Numerical models of ocean biogeochemistry are relied upon to make projections about the impact of climate change on marine resources and test hypotheses regarding the drivers of past changes in…
Near-ubiquity of ice-edge blooms in the Arctic
Abstract. Ice-edge blooms are significant features of Arctic primary production, yet have received relatively little attention. Here we combine satellite ocean colour and sea-ice data in a pan-Arctic…
The role of higher predation in plankton population models
An inconsistency is revealed in the normalization of Steele and Henderson's models, and unforced short-term oscillations (limit cycles) can occur when a quadratic closure term is used, strengthening the general conclusion that the choice of closure term can strongly influence the dynamics of models.
Marine geochemical data assimilation in an efficient Earth System Model of global biogeochemical cycling
Abstract. We have extended the 3-D ocean based "Grid ENabled Integrated Earth system model" (GENIE-1) to help understand the role of ocean biogeochemistry and marine sediments in the long-term (~100…
Global fields of sea surface dimethylsulfide predicted from chlorophyll, nutrients and light
The Biological carbon pump in the North Atlantic
Global Patterns and Predictions of Seafloor Biomass Using Random Forests
This biomass census and associated maps are vital components of mechanistic deep-sea food web models and global carbon cycling, and as such provide fundamental information that can be incorporated into evidence-based management.