Bensalem R., Chatelain Jean-Luc, Machane D., Oubaiche E., Bouchelouh A., Benkaci N., Moulouel H., Chabane S., Hellel M. (2017). Mediterranean Sea and anthropogenic influences on ambient vibration amplitudes in the low-frequency and high-frequency domains in the Algiers region. Arabian Journal of Geosciences, 10 (13), p. art. 282 [12 p.]. ISSN 1866-7511.
Titre du document
Mediterranean Sea and anthropogenic influences on ambient vibration amplitudes in the low-frequency and high-frequency domains in the Algiers region
Bensalem R., Chatelain Jean-Luc, Machane D., Oubaiche E., Bouchelouh A., Benkaci N., Moulouel H., Chabane S., Hellel M.
Source
Arabian Journal of Geosciences, 2017,
10 (13), p. art. 282 [12 p.] ISSN 1866-7511
Ambient vibrations have been continuously recorded at Dar El Beida, about 20 km from Algiers (Algeria). This data set allows determining that, in the low-frequency domain (<1 Hz), ambient vibration sources are mainly linked to Mediterranean Sea effects, while in the high-frequency domain, they are closely related to anthropogenic activity. Climatic conditions have an influence on the ambient vibration spectral amplitudes in the low-frequency domain, which is not the case in the high-frequency domain. The limit between the low-frequency and high-frequency domain, based on natural versus anthropogenic activity, is not clear cut and lies between 1.25 and 1.50 Hz. Variations of H/V peak amplitudes in the low-frequency domain are clearly linked to the climatic conditions. In the high-frequency domain, H/V peaks are not related to climatic conditions and cannot be clearly related to anthropogenic source changes.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Géophysique interne [066]
