Impact of individual meteors on the midlatitude ionosphere during the Leonids and Geminids meteor showers, 2019

• DOI: 10.5194/egusphere-egu23-6622
• Publication Date: 2023-02-25T20:12:41Z
• Authors: Veronika Barta; Csilla Szárnya; Daniel Kouba; Petra Koucka Knizova; Katerina Podolska; Antal Igaz; Zbysek Mosna
• Keywords: Ionogram; Zenith; Meteor shower; Middle latitudes

The impact of individual meteors on the lower ionosphere (90-150 km height) has been investigated during wintertime meteor showers using measurements two DPS-4D Digisondes installed at Sopron (47.63°, 16.72°) and Pruhonice (50°, 14.5°). optical have performed by a zenith camera next to digisonde Sopron. It provided opportunity compare high cadence ionograms measured parallel with data determine plasma trails meteors. Campaign ionograms/minute station Leonid (16-18 November) Geminid (10-15 December) in 2019. Furthermore, skymaps (1/min) detected Digisonde campaign were also investigated.In 20-25% observed faint, short-lived (20-120 sec) Es layers after (< 2 min) record, which are typical signal ionogram based previous studies. There was no activity same height before these events. direction echo can be defined thanks multi-beam observation technique. agreed well observations most cases. maximum frequency faint (foEs) varied between 1,6 4,5 MHz, while their 85 136 km. Points time 40 % points parameters traces ionograms.Comparing closest ionosonde time, we could conclude that local irregularities, there. This strengthens hypothesis represents optically recorded meteors.