Long-term wave climate at DanWEC

One of the objectives of the project "ResourceAssessment, Forecasts and Wave Energy Converters (WECs) Operation and Maintenance (O&M) strategies at DanWEC and beyond" is to define the longterm wave climate around Hanstholm area. This is an ongoing process as wavemeasurements from wave measuring buoys are continuously recorded and the data is analysed on a quarterly basis. The directional wave measuring buoys were first installed in March 2015. As two years is not sufficient for long-term wave climate definition, modelled data was more appropriate for the task. Thelong-term wave climate around Hanstholm is defined in the present report using the hindcast data from the MIKE 21 Spectral Wave model provided by DHI, one of the partners of the project.

Before the actual wave climate definition, a description of the site includinglocation and bathymetry is included. The historical wave data of the area andthe current network of sensors are also presented. The numerical model used toobtain the 35 years hindcast data is introduced together with its validation againstbuoy-measured data and with the description of the dataset utilised for thelong-term climate definition.

The recommendations from [IEC 62600-101 TS, 2014] for long-term wave climate characterizationwere follow as closely as possible providing the data was available. The waveclimate is presented for eleven different locations. The report is thereforedivided into eleven chapters to ease the disctintion and facilitate thenavigation through the results presented.