Inversion of dielectric constant of Mars south polar region using the MARSIS data

Author

Chuan Liu ; Hongxia Ye ; Ya-Qiu Jin

Author_Institution

Key Lab. for Inf. Sci. of Electromagn. Waves (MoE), Fudan Univ., Shanghai, China

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

3

Abstract

Radar sounder technology had been applied to Mars explorations, such as MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) in 2003 and SHARAD (SHAllow RADar) in 2005. China is also planning to launch the Mars program in the future. To investigate the radar echoes from Mars layered media, we have developed numerical simulation of radar range echoes at 1-50 MHz from Mars rough surface/subsurface model. Furthermore, we developed the parameter inversions of Mars layered media. As an example to validate these approaches, we collect 34 orbits MARSIS data to invert the dielectric constant of surface regolith around the region of Mars south pole. The result well shows the SPLD (south polar layered deposits) with water ice and high dielectric constant of other places.

Keywords

Mars; permittivity; planetary surfaces; AD 2003; AD 2005; MARSIS; MARSIS data; Mars explorations; Mars layered media; Mars program; Mars rough surface model; Mars south polar region; Mars subsurface model; SHARAD; SPLD; Shallow Radar; dielectric constant; dielectric constant inversion; frequency 1 MHz to 50 MHz; numerical simulation; radar sounder technology; south polar layered deposits; surface regolith; Dielectric constant; Mars; Nonhomogeneous media; Radar; Rough surfaces; Surface roughness; Surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6929709

Filename

6929709