On the Use of Directional Wave Spectra to Identify Distant Swells Approaching a Pacific Atoll
The aggregation of the full spectrum into single parameters such as significant wave height (Hs), peak wave period (Tp), and mean wave direction (Dir) often results in the loss of a significant amount of detail related to energy propagation. For this reason, what we propose is the analysis off the spectral wave energy arriving towards Majuro atoll with the aggregation of the information from 4 different points surrounding the atoll into a central “super-point”. With the aggregated information we perform a swell partitioning using the methodology proposed in Hanson and Philips (2001) in order to track each individual swell over the ocean basin (Portilla et al., 2015), and link them with its generating pressure field. The aim is to be able of reproducing swell behaviour over time by using the relationship found between the weather and the enhancement and decay parameters that characterize the shape of each individual swell in terms of Hs, Tp, Dir and directional spreading.