- Tytuł:
- Earth free oscillation measurements with LCR-ET 26 Spring gravimeter
- Autorzy:
-
Rajner, M.
Rogowski, J.B. - Powiązania:
- https://bibliotekanauki.pl/articles/224867.pdf
- Data publikacji:
- 2011
- Wydawca:
- Politechnika Warszawska. Wydział Geodezji i Kartografii
- Tematy:
-
pomiary grawimetryczne
gravimetric measurements - Opis:
- After strong earthquakes the Earth oscillates with spheroidal and toroidal modes. The former cause gravity changes which can be detected with sensitive instruments. For this purpose we used continuous gravity measurements with LaCoste&Romberg Earth Tide spring gravimeter from Józefosław Observatory. Spectral analyses of records show significant peaks in normal mode frequencies. This peaks are above noise level and their eigenfrequencies are in good agreement with seismic theories. We show here some examples of free oscillations registration after particular earthquakes and stacking method as well. Some remarks concerning noise level in gravity measurements and data treatment are also given.
- Źródło:
-
Reports on Geodesy; 2011, z. 2/91; 89-95
0867-3179 - Pojawia się w:
- Reports on Geodesy
- Dostawca treści:
- Biblioteka Nauki
Artykuł