Nonlinear drift of the spring gravimeter caused by air pressure from the Kunming GS15 gravimeters

• Autorzy: Wei J. , Shen W. , Li H. , Liu Z.
• Języki publikacji: EN

Abstrakty

EN

In order to monitor and correct the meteorological factors of the spring gravity meter, the characteristics of the time varying gravity changes caused by meteorological factors were analyzed. Kunming GS15 gravity meter from 2007 continuous gravity observation has been carried out with the sampling rate of the pressure observation. In this study, we first compare the effects of 4 types of gravity meter and 3 different types of stations on the gravity observed seasonal gravity signals. It is indicated that the observed seasonal gravity signal of the cave is only 1/10, and there is a constant temperature and constant pressure device. Compared with the same time, the gravity signal of the gravity signal is about 100 times smaller. The influence of the pressure load of the gravity meter is tested by using the theory of pressure. The results show that only the actual value of 2cpd - 3cpd pressure load varies from -0.395 to -0.280×10-8ms-2 , and the 1cpd to 1 cpm periodic partial type gravity meter is also in accordance with the law of gravity and air pressure. And with the characteristics of time lag. In this paper, the nonlinear zero drift parameters of the linear regression model with time lag and the time series of the GS15 gravity meter are used to simulate the nonlinear zero drift parameters of the gravity meter. The results show that the gravity signal contains time lag 35 hours, and the air pressure admittance is 0.8 × 10-8ms-2/mbar. The correlation can reach 79%. The gravity changes signal and satellite gravity as well as the gravity water load signal of the land water model are the same as the gravity water load signal in the autumn as the minimum value, and the seasonal variation of the maximum value of gravity in summer

• Wydawca: -
• Czasopismo: Polish Maritime Research
• Rocznik: 2016
• Tom: 23
• Numer: Special Issue S1
• Opis fizyczny: p.180-186,fig.,ref.

Twórcy

autor

Wei J.

• School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China
• Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071, China

autor

Shen W.

• School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China

autor

Li H.

• Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071, China

autor

Liu Z.

• Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071, China

Bibliografia

• 1. Wei Jin, Shen Chongyang, Liu Shaoming, Dai Miao. Analytic study on abnormal change in time - variable gravity at Yichang seismostation before the M5.1 Badong earthquake. Geodesy and Geodynamics, 2014, 5 (1) : 55-63
• 2. Xu jianqiao. The theory and analysis of gravity tidal – superconducting gravimeter data analysis and processing in Wuhan station[D]. Institute of Geodesy and Geophysics Chinese Academy of Sciences, 1997
• 3. Mahmoud Abd El –Gelil, et al. Frequency – dependent atmospheric pressure admittance of superconducting gravimeter records using least squares response method [J]. Physics of the Earth and Planetary Interiors, 2008, (170): 24-33
• 4. Sun Heping, Chen Xiaodong, Liu Ming, etc. Analysis and Comparison of the Tidal Gravity Observations Obtained with LCR-ET20 Spring Gravimeter [J]. ACTA SEISMOLOGICA SINICA, 2002, 24 (5) : 510-515
• 5. Wei J, Li H, Liu Z W, et al. Observation of superconducting gravimeter at Jiufeng seismic station. Chinese J. Geophys. (in Chinese), 2012, 55(6): 1894- 1902, doi: 10. 6038/j. issn. 0001- 5733. 2012. 06. 010.
• 6. Kang Kaixuan, Li Hui, Peng Peng, Hao Hongtao, Wei Jin. Seasonal variations in hydrological influences on gravity measurements using gPhones[J]. Terr. Atmos. Ocean. Sci., 2011, 22(2): 157-168, doi: 10.3319/Tao. 2010. 08. 02. 01(TibXS)
• 7. gPhone/PET gravimeter Manual (V1). gMonitor User’s Manual, 2008: gMonitor Gravity Data Acquistion and Processing Software
• 8. GWR Superconducting Gravimeter Manual GWR (superconducting gravimeter) User ‘s Mannual 2008
• 9. Wei Jin, Zhao Bin, Tan Hongbo, Yu Dan, Shen Chongyang, Li Hui. Detection of a half-microgal coseismic gravity change after the Ms7.0 Lushan earthquake. Geodesy and Geodynamics, 2013, 4(3):7-11.
• 10. Wei jin, Li hui, Liu Ziwei, Hao Hongtao, Kang Kaixuan. Study on influence of pressure on gravitymeter SGC053 by use of product spectra[J]. 2011, 31(4):47- 51.
• 11. David Crossley, Jacques Hinderer, Umberto Riccardi. The measurement of surface gravity[J]. Reports on Progress in physics, 2013, 76(046101)47pp, doi: 10. 1088/0034-4885/76/4/046101
• 12. Zhou Xin, Sun Wenke, Zhao Bin, et al. Geodetic observations detecting coseismic displacements and gravity changes caused by the Mw=9.0 Tohoku-Oki earthquake[J]. J Geophys Res, 2012, 117: B05408. Doi: 10. 1029/2011JB008849
• 13. Wang L S, Chen C, Zou R, et al. Using GPS and GRACE to detect seasonal horizontal deformation caused by loading of terrestrial water: A case study in the Himalayas. Chinese J. Geophys. (in Chinese), 2014, 57(6): 1792-1804, dio: 10. 6038/cjg20140611
• 14. Cai, C (Cai, Chuang); Cai, XY (Cai, Xinyong); Li, Y (Li, Yi). MODEL TESTS FOR SHALLOW-WATER SHIP MANEUVERABILITY IN THREE GORGES RESERVOIR [J]. POLISH MARITIME RESEARCH. 2015, 22(2): 136-140.

Identyfikatory

DOI

10.1515/pomr-2016-0063