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[1]WANG Zhendong,GU Zuowen,CHEN Bin,et al.Geomagnetic Secular Variation in China Described by CHAOS-6 Model and its Error Analysis[J].Journal of Seismological Research,2017,40(03):404-410.

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Geomagnetic Secular Variation in China Described by CHAOS-6 Model and its Error Analysis

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 40 Number of periods: 2017 03 Page number: 404-410 Column: 流动地磁专栏 Public date: 2017-07-20

Title:: Geomagnetic Secular Variation in China Described by CHAOS-6 Model and its Error Analysis

Author(s):: WANG Zhendong; GU Zuowen; CHEN Bin; WANG Can; YUAN Jiehao; (Institute of Geophysics,China Earthquake Administration,Beijing 100081,China)

Keywords:: CHAOS model; geomagnetic annual variations; geomagnetic secular variations; geomagnetic stations

CLC:: P318

DOI:: -

Abstract:: According to the CHAOS-6 model,the annual changes of geomagnetic at 28 observations located in China in 2015 and the geomagnetic secular variations at CDP,GLM,LZH,TAA and THJ observations in 2008.0—2016.5 were calculated.The differences between the geomagnetic data of practical observations and those calculated by the CHAOS-6 model were analyzed.The mean differences and the mean square root σ were obtained.The results show that the trend of the geomagnetic secular variation in China described by the CHAOS-6 model is basically consistent with those at observations,but there are some differences.The mean of the difference and the mean square root are -0.9'/1.7' and -29.3'/0.8' for geomagnetic declination(D)and inclination(I)respectively; and the mean of the difference and the mean square root are -116.3 nT/10.2 nT,264.7 nT/13.6 nT,-27.7 nT/15.0 nT,265.2 nT/13.7 nT and -356.9 nT/8.0 nT for total intensity(F),northern component(X),eastern component(Y),horizontal component(H)and vertical component(Z),respectively at 28 observations.The main reason for the error of the geomagnetic secular variation in China described by the CHAOS-6 model is that the regional and local magnetic anomalies in China,while the CHAOS-6 is a model of global geomagnetic field.The error of the CHAOS-6 model should be fully considered when we use it to study the regional problems in China.

References:: 陈斌,顾左文,狄传芝,等.2012a.第11代国际地磁参考场[J].国际地震动态,(2):20-29.
陈斌,顾左文,高金田,等.2010.中国地区地磁长期变化研究[J].地球物理学报,53(9):2144-2154.
陈斌,顾左文,高金田,等.2011b.2005.0年代中国地区地磁场及其长期变化球冠谐和分析[J].地球物理学报,54(3):771-779.
陈斌,顾左文,高金田,等.2012c.IGRF-11描述的2005-2010年中国地区地磁长期变化及其误差分析[J].地球物理学进展,27(2):512-521.
陈斌.2011b.自然正交分量方法在地震地磁监测中的应用[J].地震研究,34(4):466-469.
傅承义,陈运泰,祁贵仲.1985.地球物理学基础[M].北京:科学出版社.
高金田,安振昌,顾左文,等.2006.用曲面Spline方法表示1900～1936年中国(部分地区)地磁场及其长期变化的分布[J].地球物理学报,49(2):398-407.
顾春雷,张毅,徐如刚,等.2010.地震前后岩石圈磁场变化特征分析[J].地球物理学进展,25(2):472-477.
顾左文,安振昌,高金田,等.2006b.2003年中国及邻区地磁场模型的计算与分析[J].地震学报,28(2):141-149.
顾左文,陈斌,高金田,等.2009.应用NOC方法研究中国地区地磁时空变化[J].地球物理学报,52(10):602-2612.
顾左文,张毅,姚同起,等.2006a.九江—瑞昌M_S5.7地震地磁异常的观测与分析[J].地震学报,28(6):611-621.
倪喆,陈双贵,袁洁浩,等.2014a.芦山7.0级地震前后岩石圈磁场异常变化研究[J].地震研究,37(1):61-65.
倪喆.2014b.洱源5.5级地震前后地磁变化异常特征分析[J].地震研究,37(3):426-432.
徐文耀,魏志刚,夏国辉.2005.2000年中国地区地磁场长期变化的区域特征[J].地球物理学报,48(3):551-560.
徐文耀,朱岗昆.1984.我国及邻近地区地磁场的矩谐分析[J].地球物理学报,27(6):511-522.
徐文耀.2003.地磁学[M].北京:地震出版社.
徐文耀.2014.地磁活动性概论[M].北京:科学出版社.
袁洁浩,顾左文,陈斌,等.2013.地震与火山电磁研究的国际学术交流与合作[J].地震研究,36(1):132-140.
袁洁浩,顾左文,王粲,等.2016.2015年IUGG大会与世界华人地质大会的震磁研究进展[J].地震研究,39(4):703-708.
FINLAY C C,OLSEN N,KOTSIAROS S,et al.2016.Recent geomagnetic secular variation from Swarm and ground observatories as estimated in the CHAOS-6 geomagnetic field model[J].Earth Planets Space,68(1):112.
FINLAY C C,OLSEN N,TOEFFNER-CLAUSEN L.2015.DTU candidate field models for IGRF-12 and the CHAOS-5 geomagnetic field model[J].Earth Planets Space,67(1):114.
OLSEN N,LUEHR H,FINLAY C C,et al.2014.The CHAOS-4 geomagnetic field model[J].Geophys J Int,197(2):815-827.
OLSEN N,LUEHR H,SABAKA T J,et al.2006.CHAOS-a model of Earth's magnetic field derived from CHAMP,rsted,and SAC-C magnetic satellite data[J].Geophys J Int,166(1):67-75.
OLSEN N,MANDEA M,SABAKA T J,et al.2009.CHAOS-2-a geomagnetic field model derived from one decade of continuous satellite data[J].Geophys J Int,179(3):1477-1487.
OLSEN N,MANDEA M,SABAKA T J,et al.2010.The CHAOS-3 geomagnetic field model and candidates for the 11th generation of IGRF[J].Earth Planets Space,62:719-727.
OLSEN N,MANDEA M.2008.Rapidly changing flows in the Earth's core[J].Nature Geoscience,1(6):390-394.
XU W Y,XIA G H,A N Z C,et al.2003.Magnetic survey and China GRF2000[J].Earth Planets Space,55(4):215-217.

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Last Update: 2017-07-20