OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Signal processing of water level fluctuations in a laboratory experiment: Sloping sandy beach in a wave canal (Hydralab Project Barcelona)

Wang, Yunli and Ababou, Rachid and Marcoux, Manuel Signal processing of water level fluctuations in a laboratory experiment: Sloping sandy beach in a wave canal (Hydralab Project Barcelona). (2010) In: GeoShanghai International Conference 2010, 3 June 2010 - 5 June 2010 (Shanghai (China), China).

[img] (Document in English)

PDF (Author's version) - Depositor and staff only - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
292kB

Official URL: http://dx.doi.org/10.1061/41103(376)26

Abstract

In coastal processes, the strong water movements due to short periodic waves (such as sea swell) can induce irregular water level fluctuations H(t) in the swash zone, and also, within the sandy beach. In this paper, we analyze measured water level fluctuations in a wave canal with a sloping sand beach, using 7 capacitive sensors (Hi(t)) is the water level at sensor N°(i). Fourier spectrum and multi-resolution wavelet analyses were used to study these water level fluctuations. Several dominant periods for the entry water level H1(t) were identified with Fourier analysis. The corresponding amplitudes and the corresponding phases were obtained by wavelet analysis. Then a simplified (bimodal) Fourier approximation was determined for the irregular water level fluctuations H1(t), which can be used as the entry condition for numerical simulations.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
Statistics:download
Deposited By: Rachid ABABOU
Deposited On:09 Jan 2014 08:34

Repository Staff Only: item control page