globalchange  > 气候减缓与适应
DOI: 10.1002/2014GL062287
论文题名:
Discrepancy between ionopause and photoelectron boundary determined from Mars Express measurements
作者: Han X.; Fraenz M.; Dubinin E.; Wei Y.; Andrews D.J.; Wan W.; He M.; Rong Z.J.; Chai L.; Zhong J.; Li K.; Barabash S.
刊名: Geophysical Research Letters
ISSN: 0094-9551
EISSN: 1944-9282
出版年: 2014
卷: 41, 期:23
起始页码: 8221
结束页码: 8227
语种: 英语
英文关键词: ASPERA-3 ; ionopause ; Mars ; MARSIS ; PEB
Scopus关键词: Electron energy levels ; Ionosphere ; Photoelectrons ; Photons ; ASPERA-3 ; Ionopause ; Mars ; MARSIS ; PEB ; Photoelectron spectroscopy ; electron density ; ionosphere ; magnetic field ; Martian atmosphere ; solar wind
英文摘要: The Martian ionosphere directly interacts with the solar wind due to lack of a significant intrinsic magnetic field, and an interface is formed in between. The interface is usually recognized by two kinds of indicators: the ionopause identified from ionospheric density profiles and the photoelectron boundary (PEB) determined from the electron energy spectrum at higher energies. However, the difference between them remains unclear. We have determined the locations of crossings of the ionopause and PEB from Mars Express observations during 2005-2013 and found that the average position of the PEB appears to be ∼200 km higher than that of the ionopause, which corresponds to 103 cm-3 in the electron density profile. The discrepancy can be explained by cross-field transport of photoelectrons. © 2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921610840&doi=10.1002%2f2014GL062287&partnerID=40&md5=893da6d540b76a02a2faa643568b3fc2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6815
Appears in Collections:气候减缓与适应

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作者单位: Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Han X.,Fraenz M.,Dubinin E.,et al. Discrepancy between ionopause and photoelectron boundary determined from Mars Express measurements[J]. Geophysical Research Letters,2014-01-01,41(23).
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