Statistical Simulations of Geomagnetic Secular Variation andReversals, or Can Paleomagnetism Help Dynamo Theory?

地磁长期变化和反转的统计模拟，或者古地磁学可以帮助发电机理论吗？

• 批准号: 8915988
• 负责人: Catherine Constable
• 金额: $ 4万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-01 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915988&HistoricalAwards=false
• 关键词: Statistical; Simulations; Geomagnetic; Secular; Variation

This project is to use statistical simulations of geomagnetic secular variations and reversals to assess what contributions paleomagnetic data can make to our understanding of the geomagnetic field. A high priority in this work is to extend Constable and Parker's Giant Gaussian Process (GGP) model for the statistics of the geomagnetic secular variation to incorporate other secular variation models into a more general framework. This involves making predictions about expected VGP and field dispersion as a function of latitude for comparison and available paleomagnetic data. Intensity measurements will also be used to refine the model. Simulations will be used to assess the effects of different types of remanence acquistion on paleomagnetic records. An important feature in the GGP model is the time constants associated with variations in the field. It may well be that, along with the variance, these are the most useful parameters that paleomagnetists can provide for dynamo theoreticians.

这个项目是使用统计模拟 地磁长期变化和逆转，以评估 古地磁数据对我们理解 地磁场 这项工作的一个高度优先事项是扩大 康斯特布尔和帕克的巨高斯过程（GGP）模型 地磁长期变化的统计数据， 其他长期变化模型到一个更一般的框架。 这涉及对预期的VGP和场进行预测 色散作为纬度的函数，用于比较， 古地磁数据 强度测量还将用于 完善模型。 模拟将用于评估影响 不同类型的剩磁采集对古地磁的影响 记录 GGP模型的一个重要特征是时间 与磁场变化相关的常数。 很可能 沿着方差，这些是最有用的 古地磁学家可以为发电机提供的参数 理论家