Plan of approach SBW wind modelling

This report presents the joint KNMI and Deltares Plan of Approach for the wind modelling activities for the coming years, with the goal to determine time and spatially varying extreme wind fields. These are required as input for the 2017 safety assessment of the primary water defences. The objectives of the project have been defined as follows:...

On the determination of the temporal and spatial evolution of extreme events

The current computations of the Hydraulic Boundary Conditions rely mostly on the distribution of the basic variables at the peak of the storms. As a means of improving the quality of the numerical modelling with a view towards the 2017 assessment, it is envisaged that the numerical models (e.g. the wave model) will in the future use time and...

A comparative simulation study of the annual maxima and the peaks-over-threshold methods

In order to assess their relative merits in the context of the determinalion of Hydraulic Boundary Conditions (HBC), the Annual Maxima / Generalized Extreme Value distribution (AM/GEV) and Peaks over Threshold / Generalized Pareto Oislribution (POT/GPO) approaches are compared in terms of Iheir accuracy, as measured by mean square errors, in...