Experimental detection of the inner core translational triplet

• 来源期刊: 科学通报(英文版)
• 学科: 地球科学
• 关键词: 实验检测 转译 内核 地球动力学 模式分裂 谐波信号 背景噪音 超导重力仪
• 年，卷（期）: 2010,（3）
• 所属期刊栏目: ARTICLES
• 页码范围: 276-283
• 页数: 8页
• 分类号: P541 TU375
• 语种: 英文

摘要

The translational oscillation of the solid inner core is one of the Earth’s fundamental normal modes, which is also called Slichter mode. The normal mode should be split to form a triplet due to the Earth’s rotation and ellipticity. In this study, according to the splitting pattern of Slichter mode, an attempt has been made to detect the possibility of Slichter triplet’s existence by using the product spectra of the long-term continuous gravity measurements from the superconducting gravimeters (SG) at 6 glo...