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Does ocean acidification induce an upward flux of marine aggregates?
ocean acidification upward flux marine aggregates
2010/1/18
The absorption of anthropogenic atmospheric carbon dioxide (CO2) by the ocean provokes its acidification. This acidification may alter several oceanic processes, including the export of biogenic carbo...
Climate-induced interannual variability of marine primary and export production in three global coupled climate carbon cycle models
Climate-induced interannual variability marine primary export production
2010/1/15
Fully coupled climate carbon cycle models are sophisticated tools that are used to predict future climate change and its impact on the land and ocean carbon cycles. These models should be able to adeq...
Response of marine viral populations to a nutrient induced phytoplankton bloom at different pCO2 levels
marine viral populations nutrient induced phytoplankton bloom pCO2 levels
2010/1/15
During the PeECE III mesocosm experiment in 2005 we investigated how the virioplankton community responded to increased levels of nutrients (N and P) and CO2. We applied a combination of flow cytometr...
On the treatment of particulate organic matter sinking in large-scale models of marine biogeochemical cycles
treatment particulate organic matter large-scale models marine biogeochemical cycles
2010/1/15
Various functions have been suggested and applied to represent the sedimentation and remineralisation of particulate organic matter (POM) in numerical ocean models. Here we investigate some representa...
Different carbon isotope fractionation patterns during the development of phototrophic freshwater and marine biofilms
carbon isotope fractionation patterns phototrophic freshwater marine biofilms
2010/1/14
Natural phototrophic biofilms are influenced by a broad array of abiotic and biotic factors and vary over temporal and spatial scales. Different developmental stages can be distinguished and growth ra...
The global marine phosphorus cycle:sensitivity to oceanic circulation
global marine phosphorus cycle: sensitivity oceanic circulation
2010/1/14
A new mass balance model for the coupled marine cycles of phosphorus (P) and carbon (C) is used to examine the relationships between oceanic circulation, primary productivity, and sedimentary burial o...
Marine geochemical data assimilation in an efficient Earth System Model of global biogeochemical cycling
Marine geochemical data assimilation Earth System Model global biogeochemical cycling
2010/1/14
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 to 100 000 ...
The role of air-sea exchange in the marine nitrogen cycle
role air-sea exchange marine nitrogen cycle
2010/1/13
This contribution to the Spot-On volume considers the magnitude and composition of atmospheric nitrogen inputs to the oceans and then goes on to consider the impacts of these inputs. Effects in open o...
DMS cycle in the marine ocean-atmosphere system – a global model study
DMS cycle marine ocean-atmosphere system global model
2010/1/13
A global coupled ocean-atmosphere modeling system is established to study the production of dimethylsulfide (DMS) in the ocean, the DMS flux to the atmosphere, and the resulting sulfur concentrations ...
Major role of marine vegetation on the oceanic carbon cycle
Major role marine vegetation oceanic carbon cycle
2010/1/12
The carbon burial in vegetated sediments, ignored in past assessments of carbon burial in the ocean, was evaluated using a bottom-up approach derived from upscaling a compilation of published individu...