| DOI: | 10.1002/2015GL065732
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| 论文题名: | MAVEN and the mars initial reference ionosphere model |
| 作者: | Mendillo M.; Narvaez C.; Matta M.; Vogt M.; Mahaffy P.; Benna M.; Jakosky B.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8508
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| EISSN: | 1944-8239
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| 出版年: | 2015
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| 卷: | 42, 期:21 | | 起始页码: | 9080
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| 结束页码: | 9086
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| 语种: | 英语
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| 英文关键词: | electron density model
; MAVEN
; MIRI
; NGIMS
; predicting electron densities
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| Scopus关键词: | Carrier concentration
; Electron density measurement
; Electrons
; Forecasting
; Ionosphere
; Ionospheric measurement
; Ions
; Orbits
; Electron density models
; Ion mass spectrometer
; Ionosphere modeling
; Ionospheric heights
; MAVEN
; MIRI
; NGIMS
; Volatile evolution
; Satellites
; electron density
; ion exchange
; ionosphere
; Martian atmosphere
; model test
; orbit determination
; photochemistry
; plasma
; prediction
; satellite data
; spacecraft
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| 英文摘要: | The Neutral Gas and Ion Mass Spectrometer (NGIMS) on the Mars Atmosphere and Volatile EvolutioN (MAVEN) satellite measured the distribution of thermal ions (2-150 amu) at ionospheric heights (~130-400 km) under midday conditions during the "Deep-Dip" orbit campaign from 17 to 22 April 2015. Assuming charge neutrality, we use the sum of NGIMS ions as a proxy for electron density (Ne) and compare results with a new version of the Mars Initial Reference Ionosphere (MIRI) developed for this study. At altitudes where the transition between photochemical and dynamical processes occurs (130-200 km), the NGIMS results agree with the shape of the MIRI-predicted Ne(h) profiles, but the model predictions are a factor of 2 higher. Above 200 km, the NGIMS gradients of total ions versus height diverge even more from MIRI's Ne(h) predictions for reasons that may involve crustal-B field effects, ionopause-like boundaries, and horizontal plasma transport away from the noon sector - factors not yet included in MIRI. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955202134&doi=10.1002%2f2015GL065732&partnerID=40&md5=01b52f3adfd49569c7309e18ed29caa6
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8124
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Center for Space Physics, Boston University, Boston, MA, United States
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| Recommended Citation: | |
Mendillo M.,Narvaez C.,Matta M.,et al. MAVEN and the mars initial reference ionosphere model[J]. Geophysical Research Letters,2015-01-01,42(21).
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