Evaluation of the Atmospheric Boundary-Layer Electrical Variability

Anisimov, S. V.; Galichenko, S. V.; Aphinogenov, K. V.; Prokhorchuk, A. A.

doi:10.1007/s10546-017-0328-0

Cited by 13 publications

(8 citation statements)

References 69 publications

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“…Additionally, there can be an increase in the space charge, which is accumulating at the top of the planetary boundary layer (Nicoll et al, 2018). The mentioned processes can result in an increase of the atmospheric electric field of approximately 10-100 V/m (Anisimov et al, 2018). Furthermore, some authors reported a sharp increase of the AEF beginning shortly after the sunrise, which is known as the 'sunrise effect'.…”

Section: Effect Of Pollutionmentioning

confidence: 99%

Local and global effects on the diurnal variation of the atmospheric electric field in South America by comparison with the Carnegie curve

Tacza

Raulin

Macotela

et al. 2020

Atmospheric Research

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Section: Effect Of Pollutionmentioning

confidence: 99%

Local and global effects on the diurnal variation of the atmospheric electric field in South America by comparison with the Carnegie curve

Tacza

Raulin

Macotela

et al. 2020

Atmospheric Research

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“…The short lifetime of 220 Rn leads to the fact that all 220 Rn entering the atmosphere decays in its nearsurface layer, in contrast to the relatively long-lived 222 Rn, which has time to spread within the entire atmospheric boundary layer. Thus, the contribution of 220 Rn to ionization of the near-surface atmosphere can be quite significant, even despite its low efflux from the soil surface [10]. At the same time, the short lifetime of 220 Rn requires a special approach to measure its volumetric activity.…”

Section: Introductionmentioning

confidence: 99%

Variability of thoron distribution in the surface atmosphere at Borok Geophysical Observatory

Anisimov

Dmitriev²,

Aphinogenov³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The variability of radon-220 (thoron) distribution in the surface atmosphere is investigated by mathematical modeling of thoron turbulent transport, based on the data of continuous field natural observations at Borok Geophysical Observatory (Central Russia). The thoron flux from the surface was set according to the observations. Variations of turbulent diffusion coefficient altitude profiles were calculated by the observations of wind velocity pulsations at two altitudes made synchronously on the same location. The altitude profiles of thoron volumetric activity typical for the atmospheric surface layer are estimated. It is shown that the thoron volumetric activities at any altitudes vary concurrently, but the largest thoron volumetric activity, as well as its gradient, occurs below 0.5 m at nighttime.

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“…It was obtained from the hourly average of PG measurements made over the world's ocean and represents the global daily contribution of the electrical activity in disturbed regions (Whipple, 1929;Peterson et al, 2017). However, PG measurements on the ground are highly variable due to different local factors, such as pollution (Harrison and Aplin, 2002;Silva et al, 2014), precipitation, convective processes in the planetary boundary layer (Anisimov et al, 2018), and changes in ionisation rate from the ambient radioactivity of the Earth's surface (Barbosa, 2020). Some of these local effects can be reduced by making PG measurements at high latitudes, where the measurement sites are far from large human populations, and the low surface temperatures, and lack of daylight conditions during certain months, inhibit daytime convection.…”

Section: Introductionmentioning

confidence: 99%

Measuring Global Signals in the Potential Gradient at High Latitude Sites

et al. 2021

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Previous research has shown that the study of the global electrical circuit can be relevant to climate change studies, and this can be done through measurements of the potential gradient near the surface in fair weather conditions. However, potential gradient measurements can be highly variable due to different local effects (e.g., pollution, convective processes). In order to try to minimize these effects, potential gradient measurements can be performed at remote locations where anthropogenic influences are small. In this work we present potential gradient measurements from five stations at high latitudes in the Southern and Northern Hemisphere. This is the first description of new datasets from Halley, Antarctica; and Sodankyla, Finland. The effect of the polar cap ionospheric potential can be significant at some polar stations and detailed analysis performed here demonstrates a negligible effect on the surface potential gradient at Halley and Sodankyla. New criteria for determination of fair weather conditions at snow covered sites is also reported, demonstrating that wind speeds as low as 3 m/s can loft snow particles, and that the fetch of the measurement site is an important factor in determining this threshold wind speed. Daily and seasonal analysis of the potential gradient in fair weather conditions shows great agreement with the “universal” Carnegie curve of the global electric circuit, particularly at Halley. This demonstrates that high latitude sites, at which the magnetic and solar influences can be present, can also provide globally representative measurement sites for study of the global electric circuit.

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Evaluation of the Atmospheric Boundary-Layer Electrical Variability

Cited by 13 publications

References 69 publications

Local and global effects on the diurnal variation of the atmospheric electric field in South America by comparison with the Carnegie curve

Local and global effects on the diurnal variation of the atmospheric electric field in South America by comparison with the Carnegie curve

Variability of thoron distribution in the surface atmosphere at Borok Geophysical Observatory

Measuring Global Signals in the Potential Gradient at High Latitude Sites

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