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On wave radar measurement

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>2014
<mark>Journal</mark>Ocean Dynamics
Issue number9
Number of pages23
Pages (from-to)1281-1303
Publication StatusPublished
<mark>Original language</mark>English


The SAAB REXWaveRadar sensor is widely used for platform-based wave measurement systems by the offshore oil and gas industry. It offers in situ surface elevation wave measurements at relatively low operational costs. Furthermore, there is adequate flexibility in sampling rates, allowing in principle sampling frequencies from 1 to 10 Hz, but with an angular microwave beam width of 10° and an implied ocean surface footprint in the order of metres, significant limitations on the spatial and temporal resolution might be expected. Indeed there are reports that the accuracy of the measurements from wave radars may not be as good as expected. We review the functionality of a WaveRadar using numerical simulations to better understand how WaveRadar estimates compare with known surface elevations. In addition, we review recent field measurements made with aWaveRadar set at the maximum sampling frequency, in the light of the expected functionality and the numerical simulations, and we include inter-comparisons between SAAB radars and buoy measurements for locations in the North Sea. © Springer-Verlag Berlin Heidelberg 2014.