| 最小二乘法对地球内部物理特性的模拟 |
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| 引用本文： | 杜国强,刘植凤,李艳,陈志耕,张艳红.最小二乘法对地球内部物理特性的模拟[J].石家庄学院学报,2008,10(6). |
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| 作者姓名： | 杜国强 刘植凤 李艳 陈志耕 张艳红 |
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| 作者单位： | 石家庄经济学院地球动力研究所,河北,石家庄,050031 |
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| 基金项目： | 河北省敦育厅自然科学重点科研项目
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| 摘 要： | 压强、密度及重力加速度是地球内部物质的最重要的物理参数，而“初步参考地球模型”（PREM）给出了这些物理特性的一些具体数值．通过运用最小二乘法拟合PREM数据，得到了地球内部压强、密度及重力加速度随半径变化的具体函数关系式．这些准确无误、简单明了的函数关系式为更深入的科研工作提供了方便．
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| 关 键 词： | 最小二乘法 地球内部特性 压强 密度 重力加速度 |
Simulation of Physical Properties of the Earth Interior with the Least Square Method |
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| DU Guo-qiang,LIU Zhi-feng,LI Yan,CHEN Zhi-geng,ZHANG Yan-hong.Simulation of Physical Properties of the Earth Interior with the Least Square Method[J].Journal of Shijiazhuang University,2008,10(6). |
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| Authors: | DU Guo-qiang LIU Zhi-feng LI Yan CHEN Zhi-geng ZHANG Yan-hong |
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| Abstract: | Pressure,density and acceleration of gravity are important parameters in the earth interior.The value of these physical properties is provided by Preliminary Reference Earth Model(PREM.) In this paper,with the least square methodt,he equations of pressure,density and acceleration of gravity with radius are obtained in fitting PREM.These equations The more intensive study will be facilitated by using these equations which are accurate and straightforward. |
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| Keywords: | least square method physical characteristic of the earth interior pressure density acceleration of gravity |
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