| DOI: | 10.1002/grl.50448
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| 论文题名: | Annual/semiannual variation of the ionosphere |
| 作者: | Qian L.; Burns A.G.; Solomon S.C.; Wang W.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9036
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| EISSN: | 1944-8767
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| 出版年: | 2013
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| 卷: | 40, 期:10 | | 起始页码: | 1928
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| 结束页码: | 1933
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| 语种: | 英语
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| 英文关键词: | annual/semiannual variations
; climatology
; eddy diffusion
; gravity waves
; NmF2
; neutral density and composition
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| Scopus关键词: | annual/semiannual variations
; Constellation observing system for meteorology , ionosphere , and climates
; Eddy diffusions
; General circulation model
; GPS radio occultations
; Neutral densities
; Semiannual variation
; Thermospheric density
; Climatology
; Gravity waves
; Ionosphere
; Ionospheric measurement
; annual variation
; climatology
; data acquisition
; diffusion
; eddy
; gravity wave
; ionization
; ionosphere
; measurement method
; molecular analysis
; numerical model
; thermosphere
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| 英文摘要: | We investigated the relationship between the systematic annual and semiannual variations in the ionosphere and thermosphere using a combination of data analysis and model simulation. A climatology of daytime peak density and height of the ionospheric F2 layer was obtained from GPS radio occultation measurements by the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) during 2007-2010. These measurements were compared to simulations by the NCAR Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIE-GCM). Model reproduction of the ionospheric annual and semiannual variations was significantly improved by imposing seasonal variation of eddy diffusion at the lower boundary, which also improves agreement with thermospheric density measurements. Since changes in turbulent mixing affect both the thermosphere and ionosphere by altering the proportion of atomic and molecular gases, these results support the proposition that composition change drives the annual/semiannual variation in both the neutral and ionized components of the coupled system. © 2013 American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879994210&doi=10.1002%2fgrl.50448&partnerID=40&md5=096b6a7b3dc8dd88cc2200c11c50e4ef
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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/6300
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| Appears in Collections: | 气候减缓与适应
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作者单位: | High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO, United States
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| Recommended Citation: | |
Qian L.,Burns A.G.,Solomon S.C.,et al. Annual/semiannual variation of the ionosphere[J]. Geophysical Research Letters,2013-01-01,40(10).
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