Natural Frequencies of seiches in Lake Chapala

Abstract This research presents an analysis of the frequencies and vibration modes of the structure of the superficial seiches of Lake Chapala using mathematical modelling and measurements. The HAMSOM model was run with wind fields from coastal meteorological stations and for different lake storage...

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Autores principales: David Avalos Cueva, Cesar O. Monzón, Anatoliy Filonov, Iryna Tereshchenko, Pedro Limón Covarrubias, José Roberto Galaviz González
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Publicado: Nature Portfolio 2019
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Acceso en línea:https://doaj.org/article/c24e9b864ed24202b76be14fa8dc2c30
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spelling oai:doaj.org-article:c24e9b864ed24202b76be14fa8dc2c302021-12-02T15:08:19ZNatural Frequencies of seiches in Lake Chapala10.1038/s41598-019-48319-62045-2322https://doaj.org/article/c24e9b864ed24202b76be14fa8dc2c302019-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-48319-6https://doaj.org/toc/2045-2322Abstract This research presents an analysis of the frequencies and vibration modes of the structure of the superficial seiches of Lake Chapala using mathematical modelling and measurements. The HAMSOM model was run with wind fields from coastal meteorological stations and for different lake storage levels. The lake water level measurements were carried out in two campaigns in 2003. An analysis of the surface seiches in the lake was performed using the fast Fourier transform method. A spectral analysis of lake water level measurements reveals seiches with periods close to 5.9, 3, 2, and 1.5 h. A comparison with the periods calculated by the HAMSOM model indicates that these periods correspond to superficial seiches of the fundamental longitudinal mode of the lake and the subsequent three modes. The lake has undergone important changes in its storage level over time. Therefore, we modelled it with storage levels from the isobaths 90 to 95 m and found that surface seiche periods decreased to 5.2 h.David Avalos CuevaCesar O. MonzónAnatoliy FilonovIryna TereshchenkoPedro Limón CovarrubiasJosé Roberto Galaviz GonzálezNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
David Avalos Cueva
Cesar O. Monzón
Anatoliy Filonov
Iryna Tereshchenko
Pedro Limón Covarrubias
José Roberto Galaviz González
Natural Frequencies of seiches in Lake Chapala
description Abstract This research presents an analysis of the frequencies and vibration modes of the structure of the superficial seiches of Lake Chapala using mathematical modelling and measurements. The HAMSOM model was run with wind fields from coastal meteorological stations and for different lake storage levels. The lake water level measurements were carried out in two campaigns in 2003. An analysis of the surface seiches in the lake was performed using the fast Fourier transform method. A spectral analysis of lake water level measurements reveals seiches with periods close to 5.9, 3, 2, and 1.5 h. A comparison with the periods calculated by the HAMSOM model indicates that these periods correspond to superficial seiches of the fundamental longitudinal mode of the lake and the subsequent three modes. The lake has undergone important changes in its storage level over time. Therefore, we modelled it with storage levels from the isobaths 90 to 95 m and found that surface seiche periods decreased to 5.2 h.
format article
author David Avalos Cueva
Cesar O. Monzón
Anatoliy Filonov
Iryna Tereshchenko
Pedro Limón Covarrubias
José Roberto Galaviz González
author_facet David Avalos Cueva
Cesar O. Monzón
Anatoliy Filonov
Iryna Tereshchenko
Pedro Limón Covarrubias
José Roberto Galaviz González
author_sort David Avalos Cueva
title Natural Frequencies of seiches in Lake Chapala
title_short Natural Frequencies of seiches in Lake Chapala
title_full Natural Frequencies of seiches in Lake Chapala
title_fullStr Natural Frequencies of seiches in Lake Chapala
title_full_unstemmed Natural Frequencies of seiches in Lake Chapala
title_sort natural frequencies of seiches in lake chapala
publisher Nature Portfolio
publishDate 2019
url https://doaj.org/article/c24e9b864ed24202b76be14fa8dc2c30
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AT pedrolimoncovarrubias naturalfrequenciesofseichesinlakechapala
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