| 地球磁场的西向漂移 |
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| 引用本文： | 徐文耀,魏自刚.地球磁场的西向漂移[J].地球物理学进展,1999,14(2):42-57. |
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| 作者姓名： | 徐文耀 魏自刚 |
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| 作者单位： | 中国科学院地球物理研究所!北京１００１０１ |
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| 基金项目： | 国家自然科学基金!49734140 |
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| 摘 要： | 西向漂移是地球主磁场长期变化最重要的特点之一，任何一个成功的地磁场起源理论都反能否合理地解释西漂作为检验标准之一。本文简要回顾地磁场西漂硬件历史，对计算西漂的各种方法和结果作了对比分析，对这些方法的物理依据，特点及局限性进行了讨论。
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| 关 键 词： | 主磁场 西向漂移 相关分析 地球发电机 地球磁场 |
ON WESTW ARD DRIFT OF THE EARTH'S MAGNETIC FIELD |
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| Xu Wen--yao ,Wei Zi--gang.ON WESTW ARD DRIFT OF THE EARTH''''S MAGNETIC FIELD[J].Progress in Geophysics,1999,14(2):42-57. |
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| Authors: | Xu Wen--yao Wei Zi--gang |
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| Abstract: | The westward drift is one or the most important features in the main magnetic field orthe Earth. Any theory about the geomagnetic field origin should plausibly explain this feature. In this paper we briefly reviewed the history of researches on the westWard drift. Acomparative analysis is given on calculation methods of the westward drift. Then we discussed the physical background and charaCteristics of each method. A new scheme is proposed for separating the drift part and deformation part in the secular variation of the maingeomagnetic field. |
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| Keywords: | Main magnetic field Westward drift Correlation analysis Geodynamo |
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