Atmospheric electric potential gradient data and measured as well as reanalyzed meteorological parameters at the Széchenyi István Geophysical Observatory, Hungary, from the years 1962-2009
The negative of the vertical component of the atmospheric direct current (DC) electric field is referred to as the atmospheric electric potential gradient (PG). The PG depends on the actual ionospheric potential, local electric fields, and the electrical conductivity of the air at the place of the measurement. These factors are more or less directly connected to meteorological conditions. The overall state of the global network of large-scale electrical currents in the Earth-ionosphere system can be inferred from the PG when the weather is locally calm. This meteorological condition is traditi... Mehr ...