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DOI	10.1016/j.atmosres.2021.105660
	Statistics of variations in atmospheric electrical parameters based on a three-dimensional model and field observations
	Anisimov S.V.; Galichenko S.V.; Prokhorchuk A.A.; Klimanova E.V.
发表日期	2021
ISSN	0169-8095
卷号	259
英文摘要	In this work, we study the space-time statistical features of variations in the atmospheric electric field (Ez) and space charge in the atmospheric boundary layer using a three-dimensional model and analysis of observational data. The model is a combination of large-eddy simulation supplemented with a subgrid kinematic model for scalar and the three-dimensional Poisson equation for the electric potential. Based on the calculated evolution of three-dimensional distributions of the space charge and electric potential, the variability of the spectral slopes of variations in the space charge, vertical potential difference, and the vertical component of the electric field Ez is investigated. The vertical profiles of Ez and the frequency power spectra of Ez variations at different heights computed are in reasonable agreement with the observed ones. It is shown that the cross-correlation of Ez at spatially separated points located on one straight line near the earth's surface decreases with increasing distance with a characteristic scale of a few tens meters and has a dependence on the angle between this line and the direction of the wind. Mean large-scale horizontal electric field defined through the position and amplitude of the potential extrema at the same height depends on height non-monotonically having a maximum value of about 5 V/m. Scaling exponents of structure functions for Ez variations are found to be significantly larger than those for space charge variations. © 2021 Elsevier B.V.
英文关键词	Fair-weather atmospheric electricity; Scaling exponents; Space charge; Spectral slope; Structure functions
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236696
作者单位	Borok Geophysical Observatory of Schmidt Institute of Physics of the Earth of RAS, 152742 Borok, Yaroslavl, Russian Federation
推荐引用方式 GB/T 7714	Anisimov S.V.,Galichenko S.V.,Prokhorchuk A.A.,et al. Statistics of variations in atmospheric electrical parameters based on a three-dimensional model and field observations[J],2021,259.
APA	Anisimov S.V.,Galichenko S.V.,Prokhorchuk A.A.,&Klimanova E.V..(2021).Statistics of variations in atmospheric electrical parameters based on a three-dimensional model and field observations.Atmospheric Research,259.
MLA	Anisimov S.V.,et al."Statistics of variations in atmospheric electrical parameters based on a three-dimensional model and field observations".Atmospheric Research 259(2021).