| GSFC（9/80）地磁模型的评价和中国地磁台站异常值的确定 |
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| 引用本文： | 吴文京,白彤霞,任熙宪.GSFC（9/80）地磁模型的评价和中国地磁台站异常值的确定[J].地球物理学报,1987,30(2):178-185. |
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| 作者姓名： | 吴文京 白彤霞 任熙宪 |
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| 作者单位： | 国家地震局地球物理研究所, 北京 |
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| 摘 要： | 本文利用1960-1980年中国地磁台站资料检验了GSFC（9/80）地磁模型,结果表明该模型是成功的。据此通过地磁台站1960-1980年的观测值与GSFC（9/80）模型计算值的比较,确定了中国地磁台站的异常值。本文还建议在基本磁场的研究中从台站观测年均值中减去较精确测定的台站磁异常值,以提高资料的精确度。
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| 关 键 词： | 球谐分析 基本磁场 地磁模型 中国地磁台 |
| 收稿时间： | 1985-05-06 |
EVALUATION OF GSFC(9/80) MODEL OF GEOMAGNETIC FIELD AND DETERMINATION OF LOCAL ANOMALY SOLUTIONS OF OBSERVATORIES IN CHINA |
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| WU WEN-JING BAI TONG-XIA REN XI-XIAN.EVALUATION OF GSFC(9/80) MODEL OF GEOMAGNETIC FIELD AND DETERMINATION OF LOCAL ANOMALY SOLUTIONS OF OBSERVATORIES IN CHINA[J].Chinese Journal of Geophysics,1987,30(2):178-185. |
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| Authors: | WU WEN-JING BAI TONG-XIA REN XI-XIAN |
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| Institution: | Institute of Geophysics, Stale Seismological Bureau, Beijing |
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| Abstract: | GSFC (9/80) model of geomagnetic field is evaluated on the basis of the data of the observatories in China. The results show that this model is successful. Meanwhile the local anomaly solutions of these observatories are determined. It is suggested to subtract the local anomalies from the annual means for the study of main magnetic field in order to improve the accuracy of data. |
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| Keywords: | Spherical harmonic analysis Main field Model of geomagnetic field Geomagnetic observatories in China |
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