| Moho面扰动重力梯度信息的提取 |
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| 引用本文： | 叶周润,柳林涛,梁星辉.Moho面扰动重力梯度信息的提取[J].测绘学报,2015,44(6):609-615. |
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| 作者姓名： | 叶周润 柳林涛 梁星辉 |
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| 作者单位： | 1. 中国科学院大学, 北京 100049;2. 中国科学院测量与地球物理研究所大地测量与地球动力学国家重点实验室, 湖北 武汉 430077;3. 地理信息工程国家重点实验室, 陕西 西安 710054 |
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| 基金项目： | 国家自然科学基金，国家重大科学仪器设备开发专项，地理信息工程国家重点实验室开放基金，武汉大学地球空间环境与大地测量教育部重点实验室测绘基础研究基金(13-01-02)@@@@The National Na tu ra l Science Foundation of China，National Specia l Fund Project of Major Scientific Instrument and Equipment Development，Open Foundation of State Key Laboratory of Geographic info rmation and Eng ineering，Basic Geodet ic Resea rch Foundation of Education Min i st ry’s Key Laboratory on Geospace Env i ronment and Geodesy of Wuhan Un iversi ty |
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| 摘 要： | 在运用重力和重力梯度资料反演Moho面时,关键步骤之一即是从原始测量信号精确提取只包含该层面单一密度信息的扰动(异常)值。本文主要工作有:1为减小GEMMA Moho团队的点质量模型计算误差而采用正演精度更高的空间域Tesseroid单元体和频谱域球谐分析与综合方法,并对这两种方法进行了结果对比;2如何合理利用地壳先验模型资料。本文中最后提供了基于GOCO03S模型可以用于后续Moho面反演的重力梯度主对角线分量的全球扰动值,并对所有试验数据进行了讨论和分析。
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| 关 键 词： | GOCE Moho 重力梯度提取 |
| 收稿时间： | 2014-01-16 |
| 修稿时间： | 2015-03-15 |
The Signal Extraction of Gravity Gradient Disturbance on Moho |
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| YE Zhourun,LIU Lintao,LIANG Xinghui.The Signal Extraction of Gravity Gradient Disturbance on Moho[J].Acta Geodaetica et Cartographica Sinica,2015,44(6):609-615. |
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| Authors: | YE Zhourun LIU Lintao LIANG Xinghui |
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| Institution: | 1. University of Chinese Academy of Sciences, Beijing 100049, China;2. State Key Laboratory of Geodesy and Earth's Dynamics, Institute of Geodesy and Geophysics, CAS, Wuhan 430077, China;3. State Key Laboratory of National Geographic Information Engineering, Xi'an 710054, China |
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| Abstract: | Using gravity/ gravity gradient data for Moho inversion,one of the key steps is how to extract the Moho information data precisely from raw measurements.Here we mainly discussed:① In order to el iminate the error of point mass model used by GEMMA Moho research team,we choose Tesseroid in space domain and harmonic analysis and synthesis method in frequency domain;②The reasonable use of priori crustal model.Based on GOCO03S model,we provide the gravity gradient disturbing results of three main components which are for Moho inversion.Final ly,al l experiment results are discussed and analyzed in this paper. |
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| Keywords: | GOCE Moho extraction of gravity gradient |
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