Schumann Resonance Measurements for Global Change

这项工作的目的是通过激发全球电路的电磁共振来测量全球范围内的闪电活动。热带地区的局地测量表明，闪电活动敏感地依赖于边界层空气的湿球温度。PIS建议对舒曼共振振幅与湿球温度和热带深对流的真实分布进行详细的比较。我们将研究深对流在温度分布和随后的全球闪电中的反馈效应。秘鲁的一个新空间站将补充加利福尼亚州和西澳大利亚的两个现有空间站。将与电离层电势的独立测量和对电离层电离的观测进行比较。该项目将包括调查起源于亚马逊雷暴的向上传播的云-电离层放电的可能的极小极小电磁特征。这项研究的实际重要性在于，它有可能从很容易获得的舒曼共振的地面测量中开发出一个敏感的全球变化指数。

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.