Abstract It has long been noted that the seasonal behavior of global electric circuit (GEC) is difficult to reliably determine from measurements atmospheric electrical parameters, largely owing prominent annual cycles aerosols affecting conductivity in most continental locations. Here we discuss earlier studies this direction and present further analysis problem using results potential gradient (PG) at Vostok station Antarctica during 2006–2020. Collected high remote Antarctic Plateau, PG...

Pressure variations at 11 Antarctic sites and 7 Arctic have been examined show significant correlations with a daily proxy for the output of meteorological generators global atmospheric circuit. This is derived from vertical electric field measurements made Vostok on ice plateau. Taken finding proportionate pressure correlated circuit changes owing to coupling interplanetary field, particularly plateau (magnetic latitude > 83°) region, this provides experimental evidence that small...

Abstract Atmospheric electric field measurements from the Concordia station on Antarctic Plateau are compared with those Vostok (560 km away) for period of overlap (2009–11) and to Carnegie (1915–29) extended (2006–11) measurements. The data sorted according several sets criteria rejecting local variability examine a summer-noon influence improve estimates global signal. contribution solar wind is evaluated removed Simultaneous yield days when covariability at exceeds 90%, as well intervals...

Variations in the atmospheric, near‐surface vertical electric field component E z measured at Russian Antarctic station Vostok 1998 are analyzed conjunction with changes of interplanetary magnetic (IMF). A total 134 days were selected which satisfied “fair weather” conditions, that is, absence high winds, falling or drifting snow, clouds, and “pollution” from station's power plant. It is shown average diurnal variation for these follows global geoelectric ‐ variation: “Carnegie” curve,...

Interyear consistency is demonstrated in the bi‐monthly average diurnal vertical electric field measured over ∼720 “fair‐weather” days collected during a 5‐year interval (1998 to 2002) at Vostok (78.5°S, 107°E; magnetic latitude 83.6°S), Antarctica. After correcting for influence of polar‐cap convection, seasonal peaks values occur around July‐August with maximum ∼ 2050 UT while lowest magnitudes are near November‐December when associated occurs ∼1830 UT. These variations consistent expected...

The Mansurov effect, which for the Southern Hemisphere consists of a positive association between B y component (east‐west) interplanetary magnetic field (IMF) and ground‐level pressure stations poleward ∼80° latitude, is confirmed Vostok (78.5°S, 106.9°E; latitude 83.6°S) using modern data. magnitude small (0.19 hP per nT; 1.2% common covariance) but statistically significant (at 96.1% level). A more substantial exists, with slight delay (2–3 days) cumulative influence, station local...

Abstract Local temperature, wind speed, pressure, and solar wind–imposed influences on the vertical electric field observed at Vostok, Antarctica, are evaluated by multivariate analysis. meteorology can influence measurements via local conductivity. The results used to improve monthly diurnal averages of attributable changes in global convective storm contribution ionosphere-to-earth potential difference. Statistically significant average found for temperature (−0.47 ± 0.13% V m−1 °C−1)...

Abstract Electric field measurements at Vostok station in Antarctica reveal that the El Niño—Southern Oscillation (ENSO) has a statistically significant effect on global electric circuit, as earlier predicted by simulations. Analysis of 10 October‐February periods during 2006–2016 indicates shape diurnal variation surface is significantly different for Niño and La Niña years, with an especially pronounced deviation super 2015/16. During strong Niños potential gradient relative to mean...

Abstract. We discuss the fair weather atmospheric electric field signatures of three major solar energetic charged particle events which occurred in on 15 April 2001, 18 and 4 November, their causative flares/coronal mass ejections (SF/CMEs). Only 2001 shows clear evidence for Ez variation associated to SF/CME other two may support this hypothesis as well although them meteorological data were not available. All seem be with relativistic protons (i.e. energies >450 MeV) Ground Level Event...

Abstract The effects of a geomagnetic storm on the variation atmospheric electric field over Maitri (70°45′S, 11°44′E), Dome C (75°06′S, 123°20′E), and Vostok (78°27′S, 106°52′E) Antarctic research stations are presented in this paper. For first time, paper reports simultaneous observations field/potential gradient (PG) three high‐latitude at Southern Hemisphere, its associated changes due to substorm phenomenon. PG data obtained from these under fair‐weather conditions 5 April 2010...

The association of the European “Little Ice Age” (1550- 1850; Lamb, 1982) with a period significantly reduced solar activity (Eddy, 1976) suggests significant mechanism climate variation remains to be determined. Recent optical observations connections between tops thunderstorm systems and altitudes 70-90 km (Sentman Wescott, 1996) demonstrate linkage troposphere lower reaches ionosphere. If development is affecled by its electrical environment, then modulation geoelectric field provides...

Abstract The influence of solar wind‐magnetosphere interaction on the atmospheric electric field is investigated in connection with two severe geomagnetic storms during 24th cycle. observation was carried out at Vostok (78°27′S, 106°52′E), Antarctica, 17–18 March 2013 and 2015. Two consecutive substorms were observed main phase storms, where disturbed ionospheric current antisunward morning sector (~04:00–10:00 UT) sunward noon‐afternoon (~11:00–16:00 UT). Interplanetary magnetic (IMF) wind...

The problem of atmospheric electric field disturbances during geomagnetic variations still has no clear solution. article analyzes available data from magnetometers and electricity stations the supersubstorm April 5, 2010, which developed against background a moderate magnetic storm (/Dst/ ~ 80 nT). Comparison fluxmeter magnetometer shown unexpectedly strong in vertical Ez with range up to several hundred V/m (“electric storm”) intense disturbances. Although disturbance observed worldwide...