Ionospheric measurement
; Ions
; Solar energy
; Solar radiation
; Current models
; Ion mass spectrometer
; Mars atmosphere
; Mixing ratios
; Neutral gas
; Solar activity
; Solar minima
; Volatile evolution
; Ionosphere
; carbon dioxide
; comparative study
; ion exchange
; ionosphere
; Mars
; Martian atmosphere
; mixing ratio
; nitrous oxide
; oxygen
; prediction
; solar activity
; solar cycle
; spacecraft
; thermosphere
Department of Astronomy, Boston University, Boston, MA, United States
Recommended Citation:
Withers P.,Vogt M.,Mahaffy P.,et al. Changes in the thermosphere and ionosphere of Mars from Viking to MAVEN[J]. Geophysical Research Letters,2015-01-01,42(21).