First seasonal and annual variations of atmospheric electric field at a subtropical station in Islamabad, Pakistan

Gurmani, S.F.; Ahmad, Nabeel; Tacza, J.; Iqbal, Talat

doi:10.1016/j.jastp.2018.09.011

Cited by 22 publications

(4 citation statements)

References 51 publications

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“…Aerosol particles of pollution attach to ions in the atmosphere decreasing the electrical conductivity and by Ohm's law producing AEF increases. This effect has been evidenced in several works (Anderson and Trent, 1969;Israël 1970;Harrison and Aplin, 2002;Harrison, 2006;Silva et al, 2014;Gurmani et al, 2018). Of course, the larger the city, the larger the effect.…”

Section: Effect Of Pollutionmentioning

confidence: 69%

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: 69%

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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“…www.videleaf.com A comparison of the multiyear mean in Tomsk to similar values obtained at urban observation sites and sites in the interior of the continent revealed their approximateagreement. Thus, the longterm average values in Islamabad (Pakistan) [66], Mitzpe Ramon (Israel) [6], London (UK) [6,41], Muzaffarabad (Pakistan) [67], and Srinagar (India) [68] are about 170, 190, 370, 390, and 470 V/m, respectively.…”

Section: Discussionmentioning

confidence: 99%

The Atmospheric Electric Field under Fair-Weather Conditions in the South of Western Siberia based on Observations in Tomsk in 2006–2020

Pustovalov¹,

Nagorskiy²,

Oglezneva³

et al. 2022

Which Factors Contribute to Innovative Performance? A Case Study Applied to the Food and Beverage Industry

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Currently, many researchers have an interest in the investigation of the electric field in the fair-weather electric environment along with its diurnal and seasonal variations across all regions of the world. However, a similar study in the southern part of Western Siberia has not yet been carried out. In this regard, the paper aims to estimate the mean values of the electric field and their variations in this area using the example of Tomsk. The time series of one-minute average potential gradient values as well as other quantities obtained from the geophysical observatory of the Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences (IMCES SB RAS, Tomsk, Russia) from 2006 to 2020 is used in this study. The mean annual value of the potential gradient in Tomsk is 282 V/m and usually varies from 161 to 372 V/m. The diurnal variations in potential gradient per year on average are characterized by oscillations of the continental type with a double maximum and minimum. The main minimum of diurnal www.videleaf.com variations is 7 h and the main maximum is 21 h of local time (00 and 14 UTC, respectively). According to the annual mode, the maximum potential gradient is observed in February, and the minimum is recorded in June. The average values and range of the potential gradient in warm periods are 1.2 and 1.5 times less than in cold periods.

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“…The AEF can also be affected by thunderstorms [57][58][59], cloudiness [60], geomagnetic activities [61], solar activities [62,63] and air pollution [64,65]. Also, in some places the environmental and meteorological differences can affect the AEF [66][67][68][69][70]. Furthermore, the AEF is influenced by earthquakes [71][72][73][74].…”

Section: Vertical Atmospheric Electric Field Ez Near the Ground Durin...mentioning

confidence: 99%

Ground Electric Field, Atmospheric Weather and Electric Grid Variations in Northeast Greece Influenced by the March 2012 Solar Activity and the Moderate to Intense Geomagnetic Storms

Anagnostopoulos,

Karkanis,

Kampatagis

et al. 2024

Remote Sensing

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In a recent paper, we extended a previous study on the solar solar influence to the generation of the March 2012 heatwave in the northeastern USA. In the present study we check the possible relationship of solar activity with the early March 2012 bad weather in northeast Thrace, Greece. To this end, we examined data from various remote sensing instrumentation monitoring the Sun (SDO satellite), Interplanetary space (ACE satellite), the Earth’s magnetosphere (Earth-based measurements, NOAA-19 satellite), the top of the clouds (Terra and Aqua satellites), and the near ground atmosphere. Our comparative data analysis suggests that: (i) the winter-like weather (rainfall, fast winds, decreased temperature) in Thrace started on 6 March 2012, the same day as the heatwave started in USA, (ii) during the March 2012 winter-like event in Thrace (6–15 March), the ACE satellite recorded enhanced fluxes of solar energetic particles (SEPs), while SOHO and PAMELA recorded solar protons at very high energies (>500 MeV), (iii) Between 3–31 March, the temperature in Alexandoupoli and the ACE/EPAM solar high energy (1.88–4.70 MeV) proton flux were strongly anticorelated (r = −0.75, p = 0.5). (iv) Thrace experienced particularly intense cyclonic circulation, during periods of magnetic storms on 8–10 and 12–13 March, which occurred after the arrival at ACE of two interplanetary shock waves, on March 8 and March 11, respectively, (v) at the beginning of the two above mentioned periods large atmospheric electric fields were recorded, with values ranging between ~−2000 V/m and ~1800 V/m on 8 March, (vi) the winter-like weather on 8–10 March 2012 occurred after the detection of the main SEP event related with a coronal mass ejection released in interplanetary space as a result of intense solar flare activity observed by SDO on 7 March 2012, (vi) the 8–10 March weather was related with a deep drop of ~63 °C in the cloud top temperature measured by MODIS/Terra, which favors strong precipitation. Finally, we analyzed data from the electric power network in Thrace (~41°N) and we found, for the first time sudden voltage changes of ~3.5 kV in the electric grid in Greece, during the decay phase of the March 2012 storm series. We discuss the winter-like March 2012 event in Thrace regarding the influence of solar cosmic rays on the low troposphere mediated by positive North Atlantic Oscillation (NAO). Finally, we infer that the novel finding of the geomagnetic effects on the electric power grid in Thrace may open a new window into space weather applications research.

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First seasonal and annual variations of atmospheric electric field at a subtropical station in Islamabad, Pakistan

Cited by 22 publications

References 51 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

The Atmospheric Electric Field under Fair-Weather Conditions in the South of Western Siberia based on Observations in Tomsk in 2006–2020

Ground Electric Field, Atmospheric Weather and Electric Grid Variations in Northeast Greece Influenced by the March 2012 Solar Activity and the Moderate to Intense Geomagnetic Storms

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