Comparison of model predictions for the composition of the ionosphere of Mars to MAVEN NGIMS data

被引：27

作者：

Withers, Paul ^{[1
,2
]}

Vogt, Marissa ^{[2
]}

Mayyasi, Majd ^{[2
]}

Mahaffy, Paul ^{[3
]}

Benna, Mehdi ^{[3
]}

Elrod, Meredith ^{[3
]}

Bougher, Stephen ^{[4
]}

Dong, Chuanfei ^{[4
]}

Chaufray, Jean-Yves ^{[5
]}

Ma, Yingjuan ^{[6
]}

Jakosky, Bruce ^{[7
]}

机构：

[1] Boston Univ, Dept Astron, Boston, MA 02215 USA

[2] Boston Univ, Ctr Space Phys, Boston, MA 02215 USA

[3] NASA, Goddard Space Flight Ctr, Planetary Environm Lab, Greenbelt, MD 20771 USA

[4] Univ Michigan, Atmospher Ocean & Space Sci Dept, Ann Arbor, MI 48109 USA

[5] Inst Pierre Simon Laplace, Lab Atmosphere Milieux & Observat Spatiales, Paris, France

[6] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA

[7] Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80309 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2015年 / 42卷 / 21期

关键词：

MARTIAN IONOSPHERE; UPPER-ATMOSPHERE; SOLAR-WIND; WATER; FIELD;

D O I：

10.1002/2015GL065205

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Prior to the arrival of the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft at Mars, the only available measurements of the composition of the planet's ionosphere were those acquired by the two Viking Landers during their atmospheric entries. Many numerical models of the composition of the ionosphere of Mars have been developed, but these have only been validated for species, altitudes, and conditions for which Viking data exist. Here we compare the ionospheric composition and structure predicted by 10 ionospheric models at solar zenith angles of 45-60 degrees against ion density measurements acquired by the MAVEN Neutral Gas and Ion Mass Spectrometer (NGIMS). The most successful models included three-dimensional plasma transport driven by interactions with the surrounding space environment but had relatively simple ionospheric chemistry.

引用

页码：8966 / 8976

页数：11

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