Abstract:
This paper describes the measurements and subsequent analysis procedures at the Terminal
XXI of the Port of Sines, the operational problems at this location reported by ship authorities,
and the numerical analyses carried out for the identified resonant situations during the period
under scrutiny. The identified situations are studied to determine whether the reported
problems are effectively due to resonance phenomena or to another nonrelated circumstance.
A thorough characterization of the resonance characteristics of this harbor basin in its current
configuration layout is made both using a simple approach of comparing data measured by
tide gauge and buoy data, by relating characteristics of short waves and long waves within the
basin, and a more complete study using wavelets to investigate the time evolution of the energy
spectrum. Resonant oscillation periods of the basin are also computed with DREAMS
numerical model.
