Simultaneous measurements of the brightness temperature and short-period electric field fluctuations were carried out to reveal possible connections between the electrification rate and turbulence intensity in clouds. The measurements were conducted in Nizhny Novgorod, Russia (56°19′37″N 44°00′27″E) in 2013 and 2018. The 8 mm radiometer was used to measure the brightness temperature of thermal radiation, and the vertical component of the atmospheric electric field were carried out using an electrostatic fluxmeter. With the use of meteorological data and electric field measurements the state of analyzed events has been classified into 4 types: cloudless atmosphere and high-level clouds (Cs), cumulus clouds (Cu), cumulonimbus clouds without lightning that cause strong electrical field disturbances near the ground surface (Cb), cumulonimbus thunderstorm clouds with lightning discharges (Cb⁺). Detailed statistical characteristics of brightness temperature fluctuations and short-period electric field fluctuations are obtained for the first time for the indicated types of events.

It is shown that measured spectral densities of the atmosphere brightness temperature and electric field fluctuations correspond well enough in the considered frequency range to the results of presented theoretical consideration. Precipitation particles in clouds can be considered herewith as passive scalar, and the movement of inhomogeneities in the particle density can be described by Kolmogorov theory. Since electric charges are located on the precipitation with small droplet and ice particles, an increase in the inhomogeneities of the water content means likely an increase in the inhomogeneities of the electric charge. For thunderclouds the estimates of the relative fluctuations of liquid water content give values of the order of tens of percent. There is a tendency towards a relative increase in brightness temperature fluctuations at high frequencies in the band around f ≈ 10⁻² Hz (and possibly higher than f_max ≈ 0.05 Hz) for the sequence of cloud types Cu, Cb, Cb⁺.

对亮温和短周期电场波动进行了同时测量，以揭示云中带电率和湍流强度之间可能存在的联系。测量分别于 2013 年和 2018 年在俄罗斯下诺夫哥罗德 (56°19′37″N 44°00′27″E) 进行。8 mm 辐射计用于测量热辐射的亮温，以及热辐射的垂直分量。大气电场使用静电通量计进行。通过使用气象数据和电场测量，分析事件的状态被分为4种类型：无云大气和高空云（Cs）、积云（Cu）、没有闪电的积雨云在附近造成强电场干扰。地表（Cb），⁺ )。首次获得了所指示事件类型的亮温波动和短周期电场波动的详细统计特征。

结果表明，在所考虑的频率范围内，大气亮度温度和电场波动的测量光谱密度与所提出的理论考虑结果非常吻合。云中的降水粒子可以被认为是被动标量，粒子密度的不均匀性运动可以用柯尔莫哥洛夫理论来描述。由于电荷位于具有小液滴和冰粒的降水上，因此含水量不均匀性的增加意味着电荷不均匀性的增加。对于雷雨云，液态水含量相对波动的估计值约为百分之几十。 对于 Cu、Cb、Cb ⁺云类型的序列，f  ≈ 10 ^-2  Hz（并且可能高于f _max ≈ 0.05 Hz）。