Community Research and Development Information Service - CORDIS

Diagenetic models for aquatic sediments

Aquatic environments undergo continuous changes. While the estuarine and marine sedimentary conditions are highly dynamic, the different studying methodologies currently used are not able to easily adapt to new conditions, unless extra software programming work is done. Urged by this, a Dutch organisation developed a modelling environment offering the user unique capabilities of constructing a multitude of diagenetic models for studying the sedimentary profiles of estuarine and coastal systems.
Diagenetic models for aquatic sediments
Carbon, nitrogen, phosphorus, sulphur, iron and manganese are key elemental constituents in an estuarine or a marine sedimentary system. Their diagenesis, the process of chemical and physical change in deposited sediment, is an increasingly dynamic, multifactor process, yet hard to study with current methodology. This is mainly due to the large number of models needed for its description in order to include all the physical and chemical factors that are associated with these changes and essentially affect the sediment's status.

In order to overcome this problem, a research centre from Netherlands developed a modelling environment for studying such diagenetic models in both marine and estuarine sediments. This development allows its users to build and alter their models according to their own needs without any software code modifications. This innovative type of modelling is highly extendable to encompass new species and reactions without any necessary recompilation.

In addition, the modelling system performs many numerical solutions and procedures for extended reaction sets in extremely short times. It also features increased flexibility and modularity when structuring results offering its users easy exploitation.

Managing a sustainable marine or estuarine ecosystem heavily relies on studying its biogeochemical fluxes. In order to accomplish this, the new system provides means of both static and dynamic modelling. The modelling environment is available for use or improvement.

Related information

Record Number: 80530 / Last updated on: 2005-09-18
Domain: Environment