PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Tytuł artykułu

Investingation in tidal gravity results in Józefosław Observatory

Autorzy
Treść / Zawartość
Identyfikatory
Warianty tytułu
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.
Czasopismo
Rocznik
Tom
Strony
7--14
Opis fizyczny
Bibliogr. 14 poz., rys., wykr.
Twórcy
autor
Bibliografia
  • [1] Bogusz Janusz, 2002. New tidal gravimetric laboratory in Jozefoslaw, Reports on Geodesy, 61(1).
  • [2] Dehant, V., 1987. Tidal Parameters for an Inelastic Earth, Physics of the Earth and Planetary Interiors, 49, 97–116.
  • [3] Ducarme, B., H.-P. Sun and J.-Q. Xu, 2002. New investigation of tidal gravity results from the GGP network, Bulletin d’informations Mares Terrestres, 136, 10761–10776.
  • [4] Hinderer, J. and D. Crossley, 2004. Scientific achivements from the first phase (1997-2003) of the Global Geodynamics Project using a worldwide network of superconducting gravimeters, Journal of Geodynamics, 38, 237–262.
  • [5] Pálinkáš, V., 2006. Precise tidal measurements by spring gravimeters at the station Pecný, Journal of Geodynamics, 41, 14–22.
  • [6] Rajner, M. and T. Olszak, 2010. Calibration of spring gravimeter using absolute gravity measurements. Results of parallel observations using LCR-ET and FG5 gravimeters during 2007-2010 in Józefoslaw Observatory, Reports on Geodesy, this issue.
  • [7] Tamura, Y. and D. C. Agnew, 2008. Baytap08 User’s Manual.
  • [8] Van Camp, M. and P. Vauterin, 2005. TSoft: graphical and interactive software for the analysis of time series and Earth tides, Computers and Geosciences, 31(5).
  • [9] van Dam, T. and O. Francis, 1998. Two years of continuous measurements of tidal and non-tidal variations of gravity in Boulder, Colorado, Geophysical Research Letters, 25, 393–396.
  • [10] el Wahabi, A., H.-J. Dittfeld and Z. Simon, 2000. Meteorological influence on tidal gravimeter drift, Bulletin d’informations Mares Terrestres, 133, 10403–10414.
  • [11] Wahr, J.M., 1981. Body tides on an elliptical, rotating, elastic and oceanless Earth., Geophysical Journal of the Royal astronomical Society, 64, 677–703.
  • [12] Warburton, R. J. and J. M. Goodkind, 1977. The influence of barometeic-pressure variations on gravity, Gephys. J. R. astr. Soc., 48, 281–292.
  • [13] Wenzel, H.-G., 1996. The nanogal software: Earth Tide Data processing package ETERNA 3.30, Bulletin d’Informations Marees Terrestres, 124.
  • [14] Zürn, W., H.-G. Wenzel and G. Laske, 1991. High quality data from LaCoste&Romberg gravimeters with electrostatic feedback: A challenge for superconducting gravimeters, Bulletin d’informations Mares Terrestres, 110, 7940–7952.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-PWAB-0031-0001
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.