Haider, S.A. ; Pabari, Jayesh P. ; Masoom, J. ; Shah, Siddhi Y. (2019) Schumann resonance frequency and conductivity in the nighttime ionosphere of Mars: a source for lightning Advances in Space Research, 63 (7). pp. 2260-2266. ISSN 0273-1177
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Official URL: http://doi.org/10.1016/j.asr.2018.12.006
Related URL: http://dx.doi.org/10.1016/j.asr.2018.12.006
Abstract
We have solved the Maxwellian equations of electromagnetic waves which oscillate within the cavity formed in the lower ionosphere of Mars between 0 and 70 km. The electrical conductivity and Schumann Resonance (SR) frequencies are calculated in the lower ionosphere of Mars, in the presence of a major dust storm that occurred in Martian Year (MY) 25 at low latitude region (25°–35°S). It is found that the atmospheric conductivity reduced by one to two orders of magnitude in the presence of a dust storm. It represents a small dust layer at about 25–30 km altitudes where lightning can occur. We also found that the SR frequencies peak at ∼18 km with values 19.9, 34.5 and 48.8 Hz for the modes l = 1, 2 and 3, respectively, in the non-homogeneous medium. Our results indicate that practical or measurable values of SR are dependent on the altitudes.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Geophysical Union. |
| Keywords: | Conductivity, Dust Ionosphere, Lightning, Mars Schumann Resonance |
| ID Code: | 114846 |
| Deposited On: | 14 May 2020 12:08 |
| Last Modified: | 14 May 2020 12:08 |
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