Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 16, issue 1
Articles | Volume 16, issue 1
https://doi.org/10.5194/nhess-16-223-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/nhess-16-223-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 16, issue 1
Research article
 | 
21 Jan 2016
Research article |  | 21 Jan 2016

Statistical properties of coastal long waves analysed through sea-level time-gradient functions: exemplary analysis of the Siracusa, Italy, tide-gauge data

L. Bressan and S. Tinti

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Short summary
A new method is presented to analyse coastal tide-gauge recordings in the period range typical of local seiches, coastal shelf resonances and tsunamis. The method computes the instantaneous slope IS, the reconstructed sea level (RSL), and the control function (CF), that are shown to follow the Student's t distribution (IS and RSL) and the Beta distribution (CF) functions. As an example, the method is applied to data from the tide-gauge station of Syracuse, Italy.
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