[1]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.
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Analysis of the Magnetic Anomalies in China and its Adjacent Areas from the CHAMP Satellite Geomagnetic Total Intensity Data in 2008
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
40
Number of periods:
2017 03
Page number:
399-403
Column:
流动地磁专栏
Public date:
2017-07-23
- Title:
- Analysis of the Magnetic Anomalies in China and its Adjacent Areas from the CHAMP Satellite Geomagnetic Total Intensity Data in 2008
- Keywords:
- lithospheric magnetic field; CHAMP satellite; geomagnetic total intensity; satellite magnetic anomalies; tectonics
- CLC:
- P318
- DOI:
- -
- 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.
- References:
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Last Update:
2017-07-20