Three‐dimensional finite difference time domain modeling of the Schumann resonance parameters on Titan, Venus, and Mars

Abstract

[1] The conducting ionosphere and conducting surface of Titan, Venus, and Mars form a concentric resonator, which would support the possibility of the existence of global electromagnetic resonances. On Earth, such resonances are commonly referred to as Schumann resonances and are excited by lightning discharges. The detection of such resonances on other planets would give a support for the existence of the electrical discharges in the lower atmosphere on these planets. In this paper, a three-dimensional finite difference time domain modeling for the extremely low frequency propagation is employed to study the Schumann resonance problems on Titan, Venus, and Mars. The atmospheric conductivity profiles for these studies are derived from the previously reported ionospheric models for these planets. The Schumann resonance frequencies and Q factors on these planets are calculated and are critically compared with those obtained from the previously published models.

Three‐dimensional finite difference time domain modeling of the diurnal and seasonal variations in Schumann resonance parameters

“…[20] Comparing our FDTD results and data reported by Price and Melnikov [2004], some different features are observed in these two frequency variation patterns (see an example is presented in our previous work [Yang and Pasko, 2005;Yang et al, 2006]. Sentman [1989] found the maximum magnitude of the first mode splitting to be in the range 1.4-1.8 Hz in realistic measurements.…”

A Review of Progress in FDTD Maxwell's Equations Modeling of Impulsive Subionospheric Propagation Below 300 kHz

“…Finally, in [67], Yang and Pasko investigate SRs on other planetary bodies, including Titan (Saturn's largest moon), Mars, and Venus. Understanding SRs on planetary bodies such as Titan could help support the existence of electrical discharges and provide other useful information regarding its lower atmosphere [67].…”

“…Understanding SRs on planetary bodies such as Titan could help support the existence of electrical discharges and provide other useful information regarding its lower atmosphere [67]. For their planetary FDTD models, conductivity profiles are derived from previously reported models.…”

“…For their planetary FDTD models, conductivity profiles are derived from previously reported models. In [67], their FDTD results are compared to previously reported calculations, e.g., [48].…”

ELF Electromagnetic Waves from Lightning: The Schumann Resonances

“…The situation with other planets is a little better. SR on Venus have been studied by numerous groups [22,24,164,165]. All studies, based on different conductivity profiles and with different models yielded very close resonant frequencies: around 9, 16 and 23 Hz.…”