Global characteristics of gravity waves in the upper atmosphere of Mars as measured by MAVEN/NGIMS

被引：47

作者：

Siddlea, A. G. ^{[1
]}

Mueller-Wodarg, I. C. F. ^{[1
]}

Stone, S. W. ^{[2
]}

Yelle, R., V ^{[2
]}

机构：

[1] Imperial Coll London, Blackett Lab, Prince Consort Rd, London SW7 2AZ, England

[2] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA

来源：

ICARUS | 2019年 / 333卷

基金：

英国科学技术设施理事会;

关键词：

Mars; Thermosphere; Gravity waves; MAVEN; MARTIAN ATMOSPHERE; VARIABILITY;

D O I：

10.1016/j.icarus.2019.05.021

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present an analysis of gravity waves in Mars' upper atmosphere above 120 km. Using in-situ data from NGIMS onboard MAVEN we have been able to characterise waves from nearly 4000 orbits. We have used temperature and density profiles to extract perturbations and interpret these as vertically propagating gravity waves which we characterise by their amplitude and wavelength. In this region of the atmosphere gravity waves have amplitudes of around 10%. Vertical wavelengths are found to be around 10-30 km. We observe an increase in gravity wave amplitudes with increasing solar zenith angle. Gravity wave amplitudes appear invariant in altitude on the dayside, however increase with altitude on the nightside.

引用

页码：12 / 21

页数：10

共 48 条

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Stone, Shane W.
Yelle, Roger V.
Benna, Mehdi
Elrod, Meredith K.
Mahaffy, Paul R.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2018, 123 (11) : 2842 - 2867
[2] Structure and composition of the neutral upper atmosphere of Mars from the MAVEN NGIMS investigation
Mahaffy, P. R.
Benna, M.
Elrod, M.
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Bougher, S. W.
Stone, S. W.
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GEOPHYSICAL RESEARCH LETTERS, 2015, 42 (21) : 8951 - 8957
[3] Neutral Composition and Horizontal Variations of the Martian Upper Atmosphere From MAVEN NGIMS
Stone, Shane W.
Yelle, Roger, V
Benna, Mehdi
Elrod, Meredith K.
Mahaffy, Paul R.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2022, 127 (06)
[4] Thermospheric Expansion Associated With Dust Increase in the Lower Atmosphere on Mars Observed by MAVEN/NGIMS
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England, Scott L.
Lillis, Robert J.
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Mahaffy, Paul R.
Rowland, Douglas E.
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Benna, Mehdi
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Janches, Diego
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GEOPHYSICAL RESEARCH LETTERS, 2018, 45 (07) : 2901 - 2910
[5] Propagation of tropospheric gravity waves into the upper atmosphere of Mars
Parish, Helen F.
Schubert, Gerald
Hickey, Michael P.
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ICARUS, 2009, 203 (01) : 28 - 37
[6] Longitude structure of Martian upper atmosphere seen from MAVEN/ NGIMS during 2018 Mars dust storm
Liu, Wendong
Liu, Libo
Wu, Zhaopeng
Chen, Yiding
Le, Huijun
Zhang, Ruilong
Li, Wenbo
Ma, Han
Yang, Yuyan
ICARUS, 2024, 420
[7] He bulge revealed: He and CO2 diurnal and seasonal variations in the upper atmosphere of Mars as detected by MAVEN NGIMS
Elrod, M. K.
Bougher, S.
Bell, J.
Mahaffy, P. R.
Benna, M.
Stone, S.
Yelle, R.
Jakosky, B.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2017, 122 (02) : 2564 - 2573
[8] Structural and Compositional Changes in the Upper Atmosphere Related to the PEDE-2018 Dust Event on Mars as Observed by MAVEN NGIMS
Elrod, M. K.
Bougher, S. W.
Roeten, K.
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GEOPHYSICAL RESEARCH LETTERS, 2020, 47 (04)
[9] Impacts of Gravity Waves in the Martian Thermosphere: The Mars Global Ionosphere-Thermosphere Model Coupled With a Whole Atmosphere Gravity Wave Scheme
Roeten, K. J.
Bougher, S. W.
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JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2022, 127 (12)
[10] Model for Nitric oxide and its dayglow emission in the martian upper atmosphere using NGIMS/MAVEN measured neutral and ion densities
Raghuram, Susarla
Bhardwaj, Anil
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ICARUS, 2022, 382

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