Radar Soundings of the Ionosphere of Mars-Reference-Cited by-同舟云学术

Radar Soundings of the Ionosphere of Mars

Published:2005-12-23 Issue:5756 Volume:310 Page:1929-1933
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Gurnett D. A.¹²³⁴,Kirchner D. L.¹²³⁴,Huff R. L.¹²³⁴,Morgan D. D.¹²³⁴,Persoon A. M.¹²³⁴,Averkamp T. F.¹²³⁴,Duru F.¹²³⁴,Nielsen E.¹²³⁴,Safaeinili A.¹²³⁴,Plaut J. J.¹²³⁴,Picardi G.¹²³⁴

Affiliation:

1. Department of Physics and Astronomy, University of Iowa, Iowa City, IA 52242, USA.

2. Max Planck Institute for Solar System Research, 37191 Katlenburg-Lindau, Germany.

3. Jet Propulsion Laboratory, Pasadena, CA 91109, USA.

4. Infocom Department, “La Sapienza” University of Rome, 00184 Rome, Italy.

Abstract

We report the first radar soundings of the ionosphere of Mars with the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) instrument on board the orbiting Mars Express spacecraft. Several types of ionospheric echoes are observed, ranging from vertical echoes caused by specular reflection from the horizontally stratified ionosphere to a wide variety of oblique and diffuse echoes. The oblique echoes are believed to arise mainly from ionospheric structures associated with the complex crustal magnetic fields of Mars. Echoes at the electron plasma frequency and the cyclotron period also provide measurements of the local electron density and magnetic field strength.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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