| 三维重磁场“曲化平”的一个方法 |
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| 引用本文： | 杜维本.三维重磁场“曲化平”的一个方法[J].地球物理学报,1982,25(1):73-83. |
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| 作者姓名： | 杜维本 |
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| 作者单位： | 冶金部地球物理探矿公司 |
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| 摘 要： | 本文从勘探地球物理的实际需要和特点出发,探讨了重磁位场解析延拓的数学提法,给出一套较为实用的数值解法。所论述的原理、方法适用于三维空间任意起伏地形条件下的重磁位场曲化平计算,可做“上延拓”计算,也可做“下延拓”计算。在一个比较复杂的理论模型上所做的方法检验表明“上延”和“下延”都取得了较好的效果。
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| 关 键 词： | 曲化平 重磁场 曲面延拓 原始数据 位场解析延拓 分析表达式 起伏地形 均方相对误差 主元素 方法误差 |
| 收稿时间： | 1980-08-20 |
A NEW METHOD OF REDUCING FROM AN ARBITRARY SURFACE INTO A PLANE FOR THE THREE DIMENSIONAL MAGNETIC AND GRAVITY FIELD |
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| Du VE-BEN.A NEW METHOD OF REDUCING FROM AN ARBITRARY SURFACE INTO A PLANE FOR THE THREE DIMENSIONAL MAGNETIC AND GRAVITY FIELD[J].Chinese Journal of Geophysics,1982,25(1):73-83. |
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| Authors: | Du VE-BEN |
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| Institution: | The Geophysical Prospecting Co. Ministry of Metallurgical Industry |
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| Abstract: | According to the need and the characteristic of geophysical exploration, this paper gives a new mathematical for mulation for the analytical continuation of magnetic and gravity field, and also supplies a practical and effective digital solution. The principle and the method discussed in the paper are suitable for analytical continuation of three-dimensional arbitrary topographic relief, which includes "upward continuation" and ' downward continuation'. It was shown by a complex model analysis that satisfactory results can be obtained by using both contionuations. |
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