Deliverables Ecosystem models The aim of the work was to develop a portable generic coupled hydrodynamic ecosystem model for european seas. The resulting system has been shown to be capable of simulation marine ecosystem response in a wide range of environments form the oligotrophic Aegean Sea to the mesotrophic Skagerrak. Such models are key precursors for the development of algal bloom succession models and data assimilation systems which form the heart of a pre-operational forecast system for European seas. Availability of advanced turbulence model An advanced general Ocean Turbulence Model (GOTM) was developed, which allows simulations of turbulence at the state of the art. It includes turbulence closures schemes of different complexity, up to so-called second order closure schemes. The model is available to the scientific community under the public GNU license and can be downloaded from http://www.gotm.net. Several realistic scenarios are simulated using the GOTM model and are published in the scientific literature. New shear sensor response function We derived a new spatial response function for airfoil shear sensors. Airfoil shear sensors measure small-scale turbulence in the environment. This response function was obtained by comparing shear sensor output to laser-doppler anemometer (LDA) measurements. It allows correcting the data from such sensors, so that accurate dissipation rates can be calculated from them. It is shown that for typical near surface turbulence levels the application of the new response function will increase the calculated dissipation rates by a factor 2, which agrees with theoretical considerations. The result will be published in the scientific literature, so that it can be applied by all concerned scientists. New microthermistor response function The response characteristics of microthermistors used in limnic and oceanographic applications was investigated. A new response function was developed, which describes the speed dependence of the response time correct. Application of the new response function improves the determination of microstructure temperature gradients and the calculation of derived turbulent quantities as the diffusive dissipation rate of temperature. The result is usable in the scientific community, oceanography and turbulence research. Searching for OpenAIRE data... There was an error trying to search data from OpenAIRE No results available
