|本期目录/Table of Contents|

[1]王 粲,袁洁浩,王振东.基于2008年CHAMP卫星地磁总强度数据分析中国及邻区地磁异常特征*[J].地震研究,2017,40(03):399-403.
　WANG Can,YUANG Jiehao,WANG Zhendong.Analysis of the Magnetic Anomalies in China and its Adjacent Areas from the CHAMP Satellite Geomagnetic Total Intensity Data in 2008[J].Journal of Seismological Research,2017,40(03):399-403.
点击复制

基于2008年CHAMP卫星地磁总强度数据分析中国及邻区地磁异常特征*(PDF/HTML)

《地震研究》[ISSN:1000-0666/CN:53-1062/P]

卷:
40
期数:
2017年03期
页码:
399-403
栏目:
流动地磁专栏
出版日期:
2017-07-20

文章信息/Info

Title:
Analysis of the Magnetic Anomalies in China and its Adjacent Areas from the CHAMP Satellite Geomagnetic Total Intensity Data in 2008
作者:
王 粲1; 2; 袁洁浩1; 王振东1
(1.中国地震局地球物理研究所,北京 100081; 2.USGS,Menlo park,CA 94025,USA)
Author(s):
WANG Can1; 2; YUANG Jiehao1; WANG Zhendong1
(1.Institute of Geophysics,China Eearthquake Administration,Beijing 100081,China)(2.USGS,Menlo park,CA 94025,USA)
关键词:
岩石圈磁场;  CHAMP卫星;  地磁总强度:卫星磁异常;  地质构造
Keywords:
lithospheric magnetic field;  CHAMP satellite;  geomagnetic total intensity;  satellite magnetic anomalies;  tectonics
分类号:
P318
DOI:
-
摘要:
CHAMP卫星10年的观测任务提供了大量高精度的地磁观测数据。利用2008年CHAMP卫星地磁总强度F观测数据,通过地磁指数及地方时阈值为参数选取地磁活动较为平静期间的卫星观测资料,并利用地磁参考模型去除主磁场和外源场成分,获得了中国及邻区地磁异常分布。结果表明:卫星磁异常的分布特征与地质构造有较好的对应关系,塔里木盆地、四川盆地、松辽盆地、印度地台及华北平原部分地区表现为正磁异常,青藏高原和阿尔泰造山带地区表现为负磁异常。
Abstract:
The CHAMP satellite mission provided reliable measurements for both global and regional lithospheric magnetic fields.Based on the CHAMP satellite scalar magnetic field data in 2008,we derived the scalar magnetic anomalies in China and its adjacent areas.In order to extract the lithospheric magnetic anomalies,satellite magnetic data was selected to obtain the least-disturbed data,and we chose the satellite observation data through quiet period of magnetic activity based on the magnetic index and local threshold.Then the main magnetic field,magnetospheric field,ionospheric field and induction fields were corrected,and some unrealistic observed data were deleted.The CHAMP magnetic anomalies showed good relationship with the lithospheric structure in China and adjacent areas,the high positive magnetic anomalies are mainly located at the old platform and huge basin areas,such as the Songliao basin,Sichuan basin and Tarim basin,while the negative anomalies located in fold zones,such as Tibet plateau and Altai orogenic belt.

参考文献/References:


安振昌,马石庄,谭东海.1992.中国及邻近地区卫星磁异常的球冠谐和分析[J].地球物理学报,35(增刊1):188-197
杜劲松.2015.基于球坐标系的卫星磁异常数据处理与正反演方法研究[J].测绘学报,44(2):236-236.
冯彦.2011.中国大陆地区的岩石圈磁场模拟研究[D].南京:南京农业大学.
康国发,高国明,白春华,等.2010.中国及邻近地区CHAMP卫星磁异常的分布特征[J].地球物理学报,53(4):895-903.
李廷栋.2006.中国岩石圈构造单元[J].中国地质,33(4):700-710.
徐文耀,白春华,康国发.2008.地壳磁异常的全球模型[J].地球物理学进展,23(3):641-651.
袁学诚.1995.论中国大陆基底构造[J].地球物理学报,38(4):448-459.
张昌达.2003.由卫星和航空磁测成果推断中国岩石圈的磁性特征[J].地球物理学进展,18(1):103-110.
BLAKELY R J.1996.Potential theory in gravity and magnetic applications[M].Cambridge:Cambridge University Press.
FINLAY C C,OLSEN N,TØFFNER-CLAUSEN L.2015.DTU candidate field models for IGRF-12 and the CHAOS-5 geomagnetic field model[J].Earth Planets and Space,67(1):114.
LANGEL R A,HINZE W J.1998.The magnetic field of the Earth's lithosphere:The satellite perspective[M].Cambridge U K:Cambridge University Press.
MANDEA M,PURUCKER M.2005.Observing,modeling,and interpreting magnetic fields of the solid Earth[J].Surveys in geophysics,26(4):415-459.
OLSEN N,HULOT G,SABAKA T J.2010.Measuring the Earth's magnetic field from space:concepts of past,present and future missions[J].Space science reviews,155(1):65-93.

备注/Memo

备注/Memo:
收稿日期:2017-01-21
基金项目:2015年度地震行业科研专项——2015.0年代中国地磁参考场编制(201508013)和中国综合地球物理场观测——大华北地区(201508009)联合资助.

更新日期/Last Update: 2017-07-20