iGrav-007 SG and Detection of the Spherical Free Oscillation Modes 0Sm

JIA Jiangang; LUAN Wei; SHEN Wenbin

doi:10.13203/j.whugis20140145

Volume 40 Issue 12

Dec. 2015

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Geomatics and Information Science of Wuhan University > 2015 > 40(12): 1683-1689. > DOI: 10.13203/j.whugis20140145

JIA Jiangang, LUAN Wei, SHEN Wenbin. iGrav-007 SG and Detection of the Spherical Free Oscillation Modes ₀S_m[J]. Geomatics and Information Science of Wuhan University, 2015, 40(12): 1683-1689. DOI: 10.13203/j.whugis20140145

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iGrav-007 SG and Detection of the Spherical Free Oscillation Modes ₀S_m

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

Funds: The Major State Basic Research Development Program of China (973 Program), No.2013CB733305;the National Natural Science Foundation of China, Nos. 41128003,41174011,41210006,40974015;the Experiment Technology Project of Wuhan University, No.WHU-2015-SYJS-08.

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Received Date: February 06, 2014
Published Date: December 04, 2015

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Abstract

iGrav Superconducting Gravimeter is the newest portable gravimeter with high accuracy in the world, which provides the most stable relative gravity measurement. Based on Tsoft software, this paper processed the consecutive iGrav-007 observation data of 5 months at Wuhan Jiufeng Station. Correction of station air pression and variations of polar motion on the gravity field and analysis of the nature of gravity residual error and drifting was made. Through the spectrum analysis, detaction of the spherical free oscillation modes ₀S_m caused by the 2013 Lushan Earthquake(Mw=6.6) was made. The result of detaction is evident. It comprehensively shows that iGrav-007 having a good performance on observation.
- iGrav-007,
- atmospheric gravity admittance,
- gravity residual,
- free oscillation modes ₀S_m

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[1]	Wang Dijin,Shen Wenbin. Development of Investigations in some Geoscientific Problems Using Superconducting Gravimeter Data[J]. Science of Surveying and Mapping,2009,34:10-11(王迪晋,申文斌.利用超导重力数据研究若干地球科学问题的进展[J].测绘科学,2009,34:10-11)
[2]	Chen Xiaodong,Sun Heping.New Method for Pre- processing and Analyzing Tidal Gravity Observations [J]. Journal of Geodesy and Geodynamics, 2002,22:83-87 (陈晓东,孙和平.一种新的重力潮汐数据预处理和分析方法[J].大地测量与地球动力学,2002,22:83-87)
[3]	Shen Wenbin,Liu Renli.Study of Detecting the Inner Core Super Rotation Using SG Data[J].Geomatics and Information Science of Wuhan University,2009,34(1):72-76(申文斌,刘任莉.利用超导重力数据探测内核超速旋转的研究[J].武汉大学学报·5信息科学版,2009,34(1):72-76)
[4]	Crossley D, Hinderer J. Report of GGP Activities to Commission 3, Completing 10 Years for the Worldwide Network of Superconducting Gravimeters[J]. Observing Our Changing Earth,IAG Symposia, 2008,133:511-521
[5]	Warburton R J,Pillai H,Reineman R C. Initial Results with the New GWR iGrav^TM Superconducting Gravity Meter[C]. IAG Symposium Proceedings, Saint Petersbuly, Russia, 2010
[6]	Rosat S, Rogister Y, Crossley D, et al. A Search for the Slichter Triplet with Superconducting Gravimeters: Impact of the Density Jump at the Inner Core Boundary[J]. Journal of Geodynamics, 2006,41(1-3): 296-306
[7]	Rosat S,Hinderer J, Crossley D, et al. Performance of Superconducting Gravimeters from Long Period Seismology to Tides[J]. Journal of Geodynamics, 2004, 38:461-476
[8]	Widmer R. What can Superconducting Gravimeters Contribute to Normal Mode Seismology[J]. Bull.Seism. Soc.Am, 2003, 93(3):1 370-1 380
[9]	Hu Xiaogang, Liu Lintao, Sun Heping, et al. Wavelet Filter Analysis of Splitting and Coupling of Seismic Normal Modes Below 1.5 mHz with Superconducting Gravimeter Records After the December 26^th 2004 Sumatra Earthquake[J].Science in China Series D: Earth Sciences,2006,49:1 259-1 269
[10]	Wang Linsong, Chen Chao, Liang Qing, et al. Coseismic Response to Gravity Signals of the Great Earthquake in East Japan[J]. Geomatics and Information Science of Wuhan University,2012,37(11):1 348- 1 351(王林松,陈超,梁青,等,东日本大地震重力信号同震响应[J].武汉大学学报·5信息科学版,2012,37(11): 1 348-1 351)
[11]	GWR Instruments, Inc. iGrav007 User's Guide[OL]. http://www.gwrinstruments.com,2012
[12]	Van C M,Vauterin P. Tsoft:Graphical and Interactive Software for the Analysis of Time Series and Earth Tides[J].Computers & Geosciences,2005,31:631- 640
[13]	Spanos D,Failla G. Evolutionary Spectra Estimation Using Wavelets[J].Journal of Engineering Mechanics, 2004,130(8):952-960
[14]	Banka D, Crossley D L. Noise Levers of Super- conducting Gravimeter at Seismic Frequencies[J]. Geophys.J.Int,1999,139(1):87-97
[15]	Sun Heping, Ducarme B, Dehant V. Correction of the Atmosphere Pressure on Gravity Measurements Recorded by a Superconducting Gravimeter at Brussels[C]. The 12th Int. Sympos.On Earth Tides, Beijing, 1993
[16]	Sun Heping, Xu Houze, Tao Guoxiang, et al. Accurate Determination of the Earth Tidal Parameters Using Superconducting Gravimeter Observation[J].Crustal Deformation and Earthquake,1997,17(4):17-25(孙和平,许厚泽, 陶国祥,等.用超导重力仪观测数据精密测定地球潮汐常数[J].地壳形变与地震, 1997,17(4):17-25)
[17]	Crossley D, Jensen O, Hinderer J. Effective Barometric Admittance and Gravity Residual[J]. Phys. Earth Planet.Int, 1995,90(3-4):1 679-1 682
[18]	Dziewonski A, Anderson D. Preliminary Reference Earth Model[J].Phys. Earth Planet.Int,1981,25:297-356
[19]	Lei Xiange, Xu Houze, Sun Heping. Detection of Earth Free Oscillation by Superconducting Gravity Observation Data[J]. Chinese Science Bulletin,2002,47 (18):1 432-1 436(雷湘鄂,许厚泽,孙和平.利用超导重力观测资料检测地球自由振荡[J].科学通报, 2002,47(18):1 432- 1 436)
[20]	Lei Xiange, Sun Heping, Xu Houze. Test and Discussion of the Earth Free Oscillations and Spectral Line Splitting of Sumatra Earthquake[J].Science China: Earth Sciences,2007,37(4):504-511(雷湘鄂,孙和平,许厚泽.苏门达腊大地震激发的地球自由振荡及其谱线分裂的检测与讨论[J].中国科学:地球科学, 2007,37(4):504-511)
[21]	Ishii M, Tromp J, Dziewonski A M, et al. Joint Inversion of Normal Mode and Body Wave Data for Inner Core Anisotropy: Laterally Homogeneous Anisotropy[J].J.Geophys.Res,2002,107(B12): 2 379-2 395

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iGrav-007 SG and Detection of the Spherical Free Oscillation Modes ₀S_m