Investingation in tidal gravity results in Józefosław Observatory

• Autorzy: Rajner M.
• Konferencja: Geodetic and Geodynamic Programmes of the Central Europe / Procedings of the EGU G13 Symposium (2-7. 05. 2010; Vienna, Austria)
• Języki publikacji: EN

Abstrakty

EN

In this paper we used 40 months (2007-2010) of continuous gravity measurements to study different tidal phenomena. The records are taken from the Observatory in Józefosław equipped with LaCoste&RombergEarth Tide Gravimeter. Tidal gravity parameters in diurnal and semi-diurnal bands are computed using international standard data processing techniques. Accuracy assessment, as well variation in time of those parameters are given. Long series of consistent data allow to investigate in small signals such as gravity changes due to ocean loading. Subtracting body tides from results yields a differences up 1 uGal which are in good agreement with computed indirect ocean effect using most recent models. It clearly explains main source of disagreement between results from measurements and tidal models, despite of long distance to mearest ocean. Paper deals also with barometric pressure influence on gravity measurements. Importance of reducing pressure variation in tidal analysis is discussed and admittance factor is computed.

Słowa kluczowe

EN

tidal phenomena; gravity measurements; Astronomical-Geodetic Observatory in Józefosław

PL

zjawiska pływowe; pomiary grawimetryczne; Obserwatorium Astronomiczno-Geodezyjne w Józefosławiu

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2010
• Tom: z. 1/88
• Strony: 7--14
• Opis fizyczny: Bibliogr. 14 poz., rys., wykr.

Twórcy

autor

Rajner M.

• Warsaw Uniwersity of Technology. Departament of Geodesy and Cartography,

Bibliografia

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