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The Rhine delta : a record of sediment trapping over time scales from millennia to decades
Dissolved organic nitrogen dynamics in the North Sea : a time series analysis (1995-2005)
Dissolved organic nitrogen (DON) dynamics in the North Sea was explored by means of long-term time series of nitrogen parameters from the Dutch national monitoring program. Generally, the data quality was good with little missing data points. Different imputation methods were used to verify the robustness of the patterns against these missing data. No long-term trends in DON concentrations were found over the sampling period (1995e2005).
Coastal bio-geomorphology modeling : linking processes and scales
Application of bioassays in toxicological hazard, risk and impact assessments of dredged sediments
Exploring high-end scenarios for local sea level rise to develop flood protection strategies for a low-lying delta - the Netherlands as an example
The Veerman commission used scenarios for sea level rise, storm surges and river discharge as boundary conditions in their report "samen werken met water". This paper describes how these scenarios were developed.
Evaluation of two precipitation data sets for the Rhine River using streamflow simulations
This paper presents an extended version of awidely used precipitation data set and evaluates it along with a recently released precipitation data set, using streamflow simulations.
Operational modelling applications for coastal engineering : new developments
This paper describes three different ongoing developments andapplications of operational coastal modelling systems: 1) The development of an operational model to simulate storm impact along the Dutch and Emilia-Romagna coast 2) The application of operational modelling to predict bathing water quality along the Emilia-Romagna coast (Adriatic Sea, Italy)3) Ongoing developments of operational models into enhance the safety of swimmers.
Training for crisis response with serious games based on early warning systems
This paper discusses serious games developed as part of a training program developed for a Dutch crisis response group, which acts during a (potential) flooding crisis. Serious games can be a useful and educational addition to the set of existing training tools. For operational crisis response groups a high match with real-time warning systems is essential. Our approach shows how to integrate both serious games and early warning systems for effective training and exercises.
Modeling of a mixed-load fluvio-deltaic system
Present-day observations and classical classification schemes of alluvial deltas address channel dynamics and multiple sediment fractions. However, high-resolution physics-based mathematical models have not been applied to address formation of both fluvio-deltaic channels and diffluences and confluences, and their stratigraphy. Here, the authors present a simulated delta system under riverine forcing that shows striking similarity to its counterparts recognized in field and laboratory studies.
Modelling biogrout : a new ground improvement method based on microbial-induced carbonate precipitation
Biogrout is a new soil reinforcement method based on microbial-induced carbonate precipitation. Bacteria are placed and reactants are flushed through the soil, resulting in calcium carbonate precipitation, causing an increase in strength and stiffness of the soil. Due to this precipitation, the porosity of the soil decreases. The decreasing porosity influences the permeability and therefore the flow. To analyse the Biogrout process, a model was created that describes the process.