Tidal tilts observations in the Gran Sasso underground laboratoryстатья
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Web of Science
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Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Авторы:
Iafolla V. ,
Milyukov V. ,
Nozzoli S.
Журнал:
Nuovo Cimento della Societa Italiana di Fisica C
Том:
24
Номер:
2
Год издания:
2001
Издательство:
Societa Italiana di Fisica
Местоположение издательства:
Italy
Первая страница:
263
Последняя страница:
271
Аннотация:
A new tiltmeter, based on the technology for building a space-borne high-sensitivity accelerometer and manufactured at IFSI/CNR, has been operating during several years in the INFN Gran Sasso underground laboratory. The results of the analysis of a three-year data set, processed with the program package ETERNA, to estimate earthtidal parameters are reported. For the best series of data (1998) tide measurement accuracies are: 0.5-1% for the M2 (lunar principal) amplitude and 3-4% for the O1 (lunar declination) amplitude. The tiltmeter installed at a depth of 1400 m shows no clear evidence of meteorological effects. Observed tidal parameters are compared with theoretical tidal parameters predicted for a non-hydrostatic inelastic Earth model and demonstrate good agreement for the M2 component. Due to the high accuracy of the tidal components prediction (better than 1%) tidal measurements were used to estimate the long-term stability of the instrument response. © Società Italiana di Fisica.
Добавил в систему:
Милюков Вадим Константинович