Dust storm and electron density in the equatorial D region ionosphere of Mars: Comparison with Earth's ionosphere from rocket measurements in Brazil

S. A. Haider, I. S. Batista, M. A. Abdu, P. Muralikrishna, Siddhi Y. Shah, T. Kuroda

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We report the first model result for the dust densities and electron densities in the D region ionosphere of Mars for aerosol particles of different sizes during a major dust storm that occurred in Martian Year (MY) 25 at low latitude. These calculations are made at latitude 10S and solar longitudes (Ls) = 200, 220, 250, and 280 for high, medium, low, and absence of dust storms, respectively. Four corresponding dust layers were found at 50 km, 50 km, 38 km, and 25 km during these events. During high dust storm period, the optical depth and dust density increased by a factor of ~20 from its normal condition. The electron densities estimated for the D region ionosphere of Mars for submicron sized dust particles are largest as compared to that estimated for larger particles. The electron density reduced by ~2 orders of magnitude during high dust storm. The estimated electron density in the clear atmosphere of Mars is compared with measurements of Earth's ionosphere at nearly the same geophysical condition.

Original languageEnglish
Pages (from-to)8968-8977
Number of pages10
JournalJournal of Geophysical Research: Space Physics
Volume120
Issue number10
DOIs
Publication statusPublished - 2015 Oct 1

Keywords

  • D region ionospheres of Earth and Mars
  • dusty ionosphere of Mars
  • modeling of dust density

ASJC Scopus subject areas

  • Space and Planetary Science
  • Geophysics

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