Wind Speed Modeling

Project plan SBW \ boundary conditions \ wind modelling. Part 1: General project description

There is fragmentation and gaps in the approach to dealing with the required improvements to the wind models. Coordination is required for a balanced and efficient approach. The intended purpose of this document is to be a plan for this coordination. This approach can be embedded in the SBW project at diverse crucial points that require...

Validity of wind assumptions for wave predictions in the case of lakes

It is important for dams and dikes planning to take the generation of waves within their reservoir into account. However, the theories used to determine the characteristics of those wind-generated waves often rely on conditions applicable in open sea. This paper will try to investigate their applicability to conditions present in reservoirs and...

Analysis of the Rijkoort-Weibull model

This report makes part of the KNMI Hydra project and it gives an overview of the reproduction and adjustments to the so-called "compound Weibull model for the description of surface wind velocity distributions"(Rijkoort, 1983). This model is used to calculate return levels of hourly wind speeds with high return periods (up to 10^4 years) at...

The Response of Waves to Changes in Wind Speed

Detailed studies have been carried out for fetch and duration limited wave growth and fully developed sea state, but much less is known about changing wind conditions. The subject of this study is the response of waves to a change in wind speed. The main point of interest is the rate of response at the different frequencies. Two third generation...