EGU General Assembly 2008
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  Information - BG3.2 Biogeochemical Modeling of Land-Ocean Transition Systems (co-listed in OS)

Event Information
The coastal ocean is a key component for the global biogeochemical cycles of carbon and macronutrients (N, P, Si). It is characterized by intense autotrophic and heterotrophic processes which lead to fast turnover rates of bio-elements. The production, transport and biogeochemical transformation of these species occur along the morphologically complex land-ocean continuum, which extends from the river catchment to the shelf. In addition, the tightly coupled hydrodynamic, geological, geochemical and biological processes which are active along this continuum are driven by a wide array of forcing mechanisms, such as wind, waves, tides, freshwater inputs, continental and oceanic nutrient fluxes. As a result, land-ocean transition systems are characterized by a pronounced spatial and temporal variability which makes the evaluation of the role of the coastal ocean in global biogeochemical cycles particularly difficult.

In this session, we invite contributions related to the modeling of land-ocean transition systems. We especially encourage studies using an integrated, cross-disciplinary approach, whether based on box-modeling concepts that readily allow for global scale extrapolations, on fully formulated physical-biogeochemical reactive-transport models or on other methods and techniques of complex systems science, such as statistical learning, data mining, time series analysis, network analysis, cellular automata, Markov processes, genetic algorithms and graph theory. However, contributions focusing on the modeling of any specific process or sub-compartment of the land-ocean transition zone (e.g. river modeling, estuarine modeling, benthic-pelagic coupling) will be welcome. Finally, methodological modeling papers relevant to the theme of the session will also be considered.

Preliminary List of Solicited Speakers
Nicolas Gruber
Andreas Moll
Agnès Ducharne


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