Martian Ionospheric Magnetic Fluctuations Below 200 km

Esman, T. M.; Espley, Jared; Gruesbeck, J.; Fowler, C. M.; Xu, Shaosui; Elrod, M. K.; Harada, Yuki; Giacalone, J.

doi:10.1029/2022ja030470

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

2024

Publication Types

Select...

Article3

Other2

Relationship

Self Cite1

Independent4

Authors

Journals

Cited by 5 publications

(1 citation statement)

References 95 publications

(123 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We discuss an analysis of 54 ionospheric events using multiple MAVEN instruments [1,3]. Stronger crustal magnetic field regions have fewer events and may be a result of stronger crustal fields preventing draped field lines from reaching lower altitudes.…”

mentioning

confidence: 99%

Magnetic Field Fluctuations from the Solar Wind to the Surface of Mars

Esman,

Espley,

Gruesbeck

et al. 2023

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023

View full text Add to dashboard Cite

mentioning

confidence: 99%

Magnetic Field Fluctuations from the Solar Wind to the Surface of Mars

Esman,

Espley,

Gruesbeck

et al. 2023

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023

View full text Add to dashboard Cite

Alfvén Waves at Mars

Romanelli,

Fowler,

DiBraccio

et al. 2024

Alfvén Waves Across Heliophysics

View full text Add to dashboard Cite

Total Magnetic Field Perturbations at Martian Low Altitudes (≤500 km): MAVEN Observations in 2014–2023

Park

2024

JGR Space Physics

View full text Add to dashboard Cite

Magnetic perturbations in the Martian ionosphere are often considered as representing plasma irregularities, but thorough statistical comparisons between the two independent phenomena have been rarely conducted. In this study, we investigate the statistical relationship between total magnetic field perturbations and those of O2+ density as observed by the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft at altitudes below 500 km in 2014–2023. From the 1 Hz time series of magnetic field strength, perturbation intensity is estimated by subtracting a signal smoothed with a Savitzky‐Golay filter (window size ∼36 km). Statistically, the magnetic perturbations are stronger on the dayside than at night, in the local summer hemisphere than in winter, and away from crustal magnetic anomalies than nearby. Also, day‐to‐day variability of the magnetic perturbations exhibits a weak but significant correlation with that of solar wind electron density. The statistical behavior of total magnetic field perturbations is not the same as that of O2+ density perturbations: that is, the former is not a perfect proxy for the latter. The seemingly counter‐intuitive discrepancy can be explained by effects of inhomogeneous background magnetic field strength (participating in total pressure balance across plasma perturbations) and localized ionospheric currents at altitudes unreachable by MAVEN.

show abstract

Martian Ionospheric Magnetic Fluctuations Below 200 km

Abstract: Without a protective global magnetic field, the ionosphere of Mars interacts directly with the solar wind and undergoes large spatial and temporal fluctuations (e.g.,

Cited by 5 publications

References 95 publications

Magnetic Field Fluctuations from the Solar Wind to the Surface of Mars

Magnetic Field Fluctuations from the Solar Wind to the Surface of Mars

Alfvén Waves at Mars

Total Magnetic Field Perturbations at Martian Low Altitudes (≤500 km): MAVEN Observations in 2014–2023

Contact Info

Product

Resources

About