Short visit of Prof. E. Williams from MIT

Professor Earle Williams from MIT visited the atmospheric electricity research team in GGI, Sopron on November 14-21. Current stages of ongoing collaborative scientific projects were looked through in the frame of the workshop. The main focus was on two approaches to the problem of multi-station Schumann resonance (SR) inversion which aims at reconstructing the global lightning activity in absolute units (Coul2 km2/sec).