Schumann Resonance Measurements for Global Change

全球变化的舒曼共振测量

• 批准号: 9218161
• 负责人: Earle Williams
• 金额: $ 24.13万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-07-15 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9218161&HistoricalAwards=false
• 关键词: Schumann; Resonance; Measurements; Global; Change

The object of this work is the measurement of lightning activity on a global scale through its excitation of the electromagnetic resonances of the global electrical circuit. Local measurements in the tropics have shown that lightning activity is sensitively dependent on the wet bulb temperature of boundary layer air. The PIs propose to make detailed comparisons between Schumann resonance amplitudes and the real distributions of wet bulb temperature and deep tropical convection. Feedback effects of the deep convection in the temperature distributions and subsequent global lightning will be examined. A new station in Peru will complement two existing ones in California and Western Australia. Comparisons will be made with independent measurements of the ionospheric potential and observations of ionization of the ionosphere. The project will include investigation of possible ELF electromagnetic signatures of upward propagating cloud-ionosphere discharges originating in Amazonian thunderstorms. The practical importance of this research lies in its potential for developing a sensitive index of global change from easily obtainable ground- based measurements of Schumann resonances.

这项工作的对象是测量闪电 在全球范围内开展活动， 全球电路的电磁共振。 当地 在热带地区的测量表明，闪电活动是 对边界层湿球温度敏感 空气 PI建议对舒曼和 共振振幅和湿球的真实的分布 温度和热带深层对流。 的反馈效应 温度分布中的深对流和随后的 全球闪电将被检查。 秘鲁的一个新车站将 是对加州和西澳大利亚现有两个项目的补充。 将进行比较与独立的测量， 电离层电位和电离层电离观测 电离层 该项目将包括调查可能的ELF 向上传播云-电离层的电磁特征 源自亚马逊雷暴的放电。 实际 这项研究的重要性在于它有可能发展一种 全球变化的敏感指数， 基于舒曼共振的测量。