Three‐dimensional finite difference time domain modeling of the Earth‐ionosphere cavity resonances

Abstract

Comparison of results from a three‐dimensional (3‐D) finite difference time domain (FDTD) model of Schumann resonances (SR) with a set of classical eigenfrequency and quality factor solutions for laterally uniform spherically symmetric Earth‐ionosphere cavity and recent SR observations during solar proton events (SPEs) and X‐ray bursts demonstrate the potential and applicability of the FDTD technique for studies of realistic SR problems.