| 青藏高原地磁场模型的研究 |
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| 引用本文： | 安振昌.青藏高原地磁场模型的研究[J].地球物理学报,2000,43(3):339-345. |
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| 作者姓名： | 安振昌 |
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| 作者单位： | 中国科学院地质与地球物理研究所,北京100101 |
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| 基金项目： | 国家自然科学基金!49574215，49774219 |
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| 摘 要： | 根据青藏高原地磁三分量绝对测量资料，使用泰勒多项式方法和冠谐分析方法，计 算了青藏高原地磁场（Ｘ， Ｙ，Ｚ ）的泰勒多项式模型和青藏高原地磁剩余场（△Ｘ，△Ｙ，△Ｚ）的冠谐 模型，并绘制了相应的理论地磁图．分析了磁异常点对地磁场模型的影响，对比分析了地磁 场的多项式模型和冠谐模型，讨论了地磁场模型的边界效应问题．
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| 关 键 词： | 泰勒多项式模型 冠谐模型 地磁场 地磁剩余场 青藏高原 |
| 文章编号： | 0001-5733(2000)03-0339-07 |
| 收稿时间： | 1999-02-12 |
STUDIF S ON GEOMAGNETIC FIELD MODELS OF QINGHAI-XIZANG PLATEAU |
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| AN ZHEN-CHANG.STUDIF S ON GEOMAGNETIC FIELD MODELS OF QINGHAI-XIZANG PLATEAU[J].Chinese Journal of Geophysics,2000,43(3):339-345. |
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| Authors: | AN ZHEN-CHANG |
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| Institution: | Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | Based on the geomagnetic three-components absolute survey dare and by use of the Taylor polynomial method and foe spherical cap harmonic analysis method, the Taylor polynomial models of the geomagnetic field （X Y and Z） and the spherical cap harmonic models of the geomagnetic residual field (△X △Y and △Z over Qinghai-Xizang plateau are calculated, and corresponding theoretical geomagnetic charts are constructed, too. The effects of geomagnetic anomalous points on the geomagnetic field model are analysed, a comparison between the polynomial model and the spherical cap harmonic model of the geomagnetic field is carried out and the boundary effects of the geomagnetic field model are discussed, too. |
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| Keywords: | Taylor polynomial model Spherical cap harmonic model Geomagnetic field Geomagnetic residual field Qinghai-Xizang plateau |
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