重力场的时间变化与地球动力学
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摘要
利用现代高精度重力场信息研究地球动力学问题是近年来国际地学领域前沿热点,除地震测量外,重力场为人们准确了解和深刻认识地球深内部构造提供又一有效工具。文章简要概述了利用超导重力仪开展重力场研究的背景和作用,介绍了国际发展现状和趋势以及我院近年来在知识创新工程重要方向性项目的支持下取得的主要研究成果,最后对如何进一步发挥重力场在地球动力学和国家需求方面的作用提出了几点建议。
It is one of the hot international frontier research subjects in Earth science domain to study geodynamical problems by using modern high precision gravity field information. Except for seismology measurements, the gravity can provide us with one effective tool to know accurately and recognize deeply the structures of the Earth's deep interior. The background and action of the gravity studies using superconducting gravimeters are simply summarized in the paper. The present status and tendency of the international developments as well as the main research achievements obtained under the support of the key knowledge innovation project of the Chinese Academy of Sciences are introduced. Finally, several reference suggestions for how to better use of the gravity information in geodynamics and national requirements are proposed.
It is one of the hot international frontier research subjects in Earth science domain to study geodynamical problems by using modern high precision gravity field information. Except for seismology measurements, the gravity can provide us with one effective tool to know accurately and recognize deeply the structures of the Earth's deep interior. The background and action of the gravity studies using superconducting gravimeters are simply summarized in the paper. The present status and tendency of the international developments as well as the main research achievements obtained under the support of the key knowledge innovation project of the Chinese Academy of Sciences are introduced. Finally, several reference suggestions for how to better use of the gravity information in geodynamics and national requirements are proposed.
引文
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4雷湘鄂,许厚泽,孙和平.利用武汉SG检测地球自由振荡.科学通报,2002,47(18):1432-1436.
5孙和平,徐建桥,DucarmeB.基于全球超导重力仪观测资料考虑液核近周日共振效应的固体潮实验模型.科学通报,2003,48(6):610-614.
6徐建桥,孙和平,罗少聪.利用国际超导重力仪观测资料研究地球自由核章动.中国科学(D辑),2001,31(9):719-726.
7许厚泽,孙和平,徐建桥等.武汉国际重力潮汐基准研究.中国科学(D辑),2000,30(5):549-553.
2SmylieDE.ViscositynearEarth'ssolidinnercore.Science,1999,284:461-463.
3SunHP,HsuHT,JentzschG etal.Tidalgravity observationsobtainedwithsuperconductinggravimeterand itsapplicationtogeodynamicsatWuhan/China.J.Geodynamics,2002,33(1-2):187-198.
4雷湘鄂,许厚泽,孙和平.利用武汉SG检测地球自由振荡.科学通报,2002,47(18):1432-1436.
5孙和平,徐建桥,DucarmeB.基于全球超导重力仪观测资料考虑液核近周日共振效应的固体潮实验模型.科学通报,2003,48(6):610-614.
6徐建桥,孙和平,罗少聪.利用国际超导重力仪观测资料研究地球自由核章动.中国科学(D辑),2001,31(9):719-726.
7许厚泽,孙和平,徐建桥等.武汉国际重力潮汐基准研究.中国科学(D辑),2000,30(5):549-553.
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