OAUW Tuesday seminar: "On Cracow Studies Using Natural Extremely Low Frequency Electromagnetic Waves"

by Prof. Michal Ostrowski (OAUJ)

Tuesday Nov 5, 2024, 4:00 PM → 5:00 PM Europe/Warsaw

Sala Kopernikańska (OAUW)

This presentation provides a review of recent findings from our group research on natural Extremely Low Frequency (ELF) electromagnetic waves, covering the frequency range from 0.03 to 1000 Hz. These waves, generated by lightning discharges during thunderstorms across the globe, propagate over global distances within a spherical resonance cavity formed by the Earth's surface and the ionosphere. Our measurements, carried out as part of the World Radiolocation ELF Array (WERA, http://www.oa.uj.edu.pl/WERA) project and using our newly installed ELA11 magnetic sensor in the Bieszczady Mountains, have applications across various fields in geophysics and astrophysics. These include contributions to gravitational wave research, studies on the sources of Terrestrial Gamma Ray Flashes (TGFs), investigations into the effects of solar flares on ionospheric structure and ELF wave propagation, as well as research on ionospheric irregularities, particularly the day-night terminator. Our measurements have also captured electromagnetic signatures of the Hunga Tonga volcano eruption. I will conclude with an overview of our current plans for the expansion/modernization of the WERA infrastructure.

Zoom link: https://uw-edu-pl.zoom.us/j/94215122452

YouTube link: https://youtube.com/live/UrWqQiC0OrI?feature=share