The modeling framework Flexsem is a fast, flexible and very user friendly tool specifically targeted towards scientific and management challenges of the complex biogeochemical processes in coastal zone ecosystems. Flexsem is a modular marine modeling framework, which contains a simplified formulation of estuarine hydrodynamics and more complex descriptions of pelagic and benthic biogeochemical processes.
It has a very short computational time and can be easily adapted to different areas. Flexsem allows the user to set up computational grids of different complexity ranging from simple box model configurations to high-resolution unstructured grids. It can be applied by non-experts after a short introduction and might therefore be a good candidate to support managers and scientists without the need of an extensive computing infrastructure.