The influence of air pressure on sea level in the North Adriatic – a frequency-domain approach
Abstract
Yearly time series of air-pressure and sea-level data, taken at the Rovinj station in the North Adriatic, were used for gaining an insight in the influence of air pressure on sea level in that part of the Adriatic.
Through application of spectral analysis and systems analysis it was shown that the influence of air pressure on the sea-level changes is of a far greater significance in the long-period range (periods of two days and more) than in the short-period range. Furthermore, a linear proportionality with proportionality factor negative and near to the theoretical value was shown to exist.
The described analysis was utilised to examplify and comment the applicability of spectral and systems analysis in investigation of the dynamics of physical phenomena in the sea.
