Measurements of the Atmospheric Electric Current Density by a Passive Horizontal Ring Antenna in the Surface Layer: Quasi-Stationary Approximation

IF 0.8 4区地球科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Radiophysics and Quantum Electronics Pub Date : 2023-09-11 DOI:10.1007/s11141-023-10259-7

S. V. Anisimov, S. V. Galichenko, A. A. Prokhorchuk, K. V. Aphinogenov, E. V. Klimanova

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Abstract

We consider a quasi-stationary approximation for turbulent electrical processes in the atmospheric boundary layer and their recording by a passive horizontal ring antenna acting as a collector of atmospheric electric current. On the basis of large eddy simulation, variations in electrical variables are calculated and spatial correlation functions and the spectral density of fluctuations of the atmospheric-current density components are estimated along with the response of the collector current to local turbulent perturbations of the conduction-current density and an instantaneous change in the global potential difference between the ionosphere and the Earth’s surface. Based on the simulation results, we estimate the ratio of the total vertical atmospheric electric current density and the conduction current density at the height of the antenna location, which can be used to extrapolate the results of ground-based measurements beyond the atmospheric boundary layer. The results of direct observations of the atmospheric electric current density by the collector are compared with the results of synchronous observations of the atmospheric electric field and the electrical conductivity in the surface layer. The frequency spectra of the collector-measured and calculated fluctuations of electric current have a power-law decay with increasing frequency with indices that are consistent for measurements and model calculations in the range from −1.0 to −1.5.

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用无源水平环形天线测量大气电流密度:准平稳近似

我们考虑了大气边界层中紊流电过程的准平稳近似，并考虑了作为大气电流收集器的无源水平环形天线对紊流电过程的记录。在大涡模拟的基础上，计算了电变量的变化，估计了大气电流密度分量波动的空间相关函数和谱密度，以及集电极电流对电导层电流密度局部湍流扰动和电离层与地球表面总电位差瞬时变化的响应。基于模拟结果，我们估算了天线位置高度处大气垂直总电流密度与传导电流密度的比值，该比值可用于推断大气边界层以外地面测量的结果。将集电极直接观测大气电流密度的结果与同步观测大气电场和表层电导率的结果进行了比较。集热器测量和计算的电流波动的频谱随频率增加呈幂律衰减，其指数在- 1.0至- 1.5范围内与测量和模型计算一致。

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来源期刊

Radiophysics and Quantum Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-PHYSICS, APPLIED

CiteScore

1.10

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Radiophysics and Quantum Electronics contains the most recent and best Russian research on topics such as: Radio astronomy; Plasma astrophysics; Ionospheric, atmospheric and oceanic physics; Radiowave propagation; Quantum radiophysics; Pphysics of oscillations and waves; Physics of plasmas; Statistical radiophysics; Electrodynamics; Vacuum and plasma electronics; Acoustics; Solid-state electronics. Radiophysics and Quantum Electronics is a translation of the Russian journal Izvestiya VUZ. Radiofizika, published by the Radiophysical Research Institute and N.I. Lobachevsky State University at Nizhnii Novgorod, Russia. The Russian volume-year is published in English beginning in April. All articles are peer-reviewed.