The Structure and Dynamical Properties of the Earth's Core

地核的结构和动力学特性

• 批准号: 8804791
• 负责人: John Wahr
• 金额: $ 13.97万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-12-15 至 1991-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8804791&HistoricalAwards=false
• 关键词: Structure; Dynamical; Properties; Earth; Core

This project will continue ongoing work related to the shape of the core/mantle boundary and to structure and material properties inside the core. It will continue inversion of core phase travel time data for core structure and other parameters. This inversion includes the effects of structure inside the outer core induced by boundary topography and by gravitational forces. It will also model the effects on the earth's forced nutations of: (a) the inner core (including possible inner core structure), and (b) outer core viscosity in the presence of non-hydrostatic core/mantle topography. Part (a) will include an attempt to model and expected inner core nutational normal mode.

该项目将继续进行与形状相关的工作 地核/地幔边界以及结构和物质 核心内的属性。 它将继续反转的核心 岩心结构和其他参数的相位传播时间数据。 这种倒置包括外部内部结构的影响， 由边界地形和重力引起的核心。 它还将模拟地球强迫章动的影响 （a）内核（包括可能的内核结构）， 和（B）在非流体静力学存在下的外核粘度 核幔地形 （a）部分将包括试图 模型和预期内核章动正常模式。