The global representativeness of fair-weather atmospheric electricity parameters from the coastal station Maitri, Antarctica ...

• Main Authors: , Jeeva, Sinha, Gopi, Pawar, Guha, Kamra, Williams, , Ravichandran
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Zenodo 2023
• Subjects: Potential Gradient, air-Earth current density, conduction current, electrically quiet days, electrode effect, global electric circuit; Antarctic; The Antarctic; Maitri; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5281/zenodo.7817205; https://zenodo.org/record/7817205

Atmospheric Electricity Parameters (AEP) measurements from Antarctica predominantly feature either the Potential Gradient (PG) and/or air-Earth current (AEC) density. We report for the first time simultaneous measurements of the bipolar ions concentration/conductivity, PG, and AEC density. AEP measurements were carried out at Maitri (70.8° S, 11.8° E) from December 2018 to November 2019. We formulated a few criteria, irrespective of the weather conditions, to select the electrically quiet days and some additional criteria based on the conductivity measurements to discern globally representative data (GRD) from such days. The measurements of the PG and AEC density over the Antarctic plateau demonstrated the diurnal curves similar to the Carnegie pattern, which represents the global thunderstorms and electrified shower clouds occurring on different continents and oceans, we regard the data having such trend as GRD. We found significant variability in the concentration of small bipolar ions/conductivity in the ... : No ...