Aktis uses its own in-house splitter to separate wind seas and multiple swells. This uses a mountaineering scheme to identify all the individual peaks in a 2d spectrum. It then identifies the peak(s) that corresponds to wind seas and merge them into one partition. The rest of the peaks are identified as swells and can be stored separately or recombined into meaningful wave systems.
Aktis has developed algorithms for re-combining neighbouring partitions depending on their direction and frequency without getting a combined partition with too much directional or frequency spreading.
For each resulting partition the splitter computes the individual wave characteristics (Hm0, Tp, θ0, gamma, sigma etc…) and outputs the time series.
The image on the right presents the identification of multiple swells in the Pacific Ocean. It shows that our splitter can cope with a very complex wave spectra and offers options to recombine various swells into wave systems.