| 瞬态地幔对流引起的大尺度核幔边界起伏的数值模拟 |
| |
| 引用本文： | 崔荣花,方剑,陈铭.瞬态地幔对流引起的大尺度核幔边界起伏的数值模拟[J].大地测量与地球动力学,2020,40(3):281-286. |
| |
| 作者姓名： | 崔荣花 方剑 陈铭 |
| |
| 作者单位： | 中国科学院测量与地球物理研究所;中国地震局第一监测中心 |
| |
| 基金项目： | 国家重点研发计划(2016YFC0601101);国家自然科学基金(41874096);中国科学院战略先导研究专项-B类(XDB18010304)~~ |
| |
| 摘 要： | 利用2个较新的S波层析模型SEMUCB_WM1和S40RTS进行瞬态地幔对流在三维球坐标系下的数值模拟,得到全球大尺度核幔边界(core-mantle boundary,CMB)起伏,其幅度约为-5~5 km,形态分布主要表现为太平洋区域和非洲南部下方核幔边界的隆升及环绕这2个区域的核幔边界凹陷。
|
| 关 键 词： | 核幔边界起伏 瞬时地幔对流 地幔粘度 数值模拟 |
Numerical Simulation of Large-Scale Core-Mantle Boundary Topography Relief Caused by Instantaneous Mantle Flow |
| |
| CUI Ronghua,FANG Jian,CHEN Ming.Numerical Simulation of Large-Scale Core-Mantle Boundary Topography Relief Caused by Instantaneous Mantle Flow[J].Journal of Geodesy and Geodynamics,2020,40(3):281-286. |
| |
| Authors: | CUI Ronghua FANG Jian CHEN Ming |
| |
| Institution: | (Institute of Geodesy and Geophysics,CAS,340 Xudong Street,Wuhan 430077,China;The First Monitoring and Application Center,CEA,7 Naihuo Road,Tianjin 300180,China) |
| |
| Abstract: | Using two recently S-wave tomography models, SEMUCB_WM1 and S40RTS, we make numerical simulations of the instantaneous mantle convection in the three-dimensional spherical coordinate system, yielding global large-scale core-mantle boundary (CMB) topography relief with an amplitude of approximately -5~5 km, with a distribution mainly characterized by the uplifts of the core-mantle boundary under the Pacific and south Africa and depressions around those areas. |
| |
| Keywords: | core-mantle boundary relief instantaneous mantle convection mantle viscosity numerical simulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《大地测量与地球动力学》浏览原始摘要信息 |
| 点击此处可从《大地测量与地球动力学》下载免费的PDF全文 |
