Mesoscale convective systems as a source of electromagnetic signals registered by ground-based system and DEMETER (Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions) satellite

Abstract. Mesoscale convective systems (MCSs) are especially visible in the summertime when there is an advection of warm maritime air from west. Advection masses enriched by water vapour, source which can be found over Mediterranean Sea. In propitious atmospheric conditions, and thus significant convection, instability or strong vertical thermal gradient leads to development thunderstorm systems. this paper, we discuss one case MCSs, generated a amount +CG (cloud-to-ground), −CG intracloud (IC) discharges. We have focused on ELF (extremely low frequency; < 1 kHz) electromagnetic field measurements, since they allow us compute charge moments Identification MCSs complex process, due many variables taken into account. For our research, took consideration few tools, such as cloud reflectivity, soundings data provided PERUN (Polish system discharge localisation system), operates very high frequency (VHF) range (113.5–114.5 MHz). Combining above-described measurement identified MCS occurred Poland 23 July 2009. Furthermore, it fulfilled requirements crossed path DEMETER (Detection Electro-Magnetic Emissions Transmitted Earthquake Regions) overpass.