Longitudinal Structure of the Midlatitude Ionosphere Using COSMIC Electron Density Profiles
文献类型：期刊论文
| 作者 | Li, Qiaoling1,2,3,4; Liu, Libo1,2,3,4; Balan, N.1; Huang, He1,2,3; Zhang, Ruilong1,2,3,4; Chen, Yiding1,2,3,4; Le, Huijun1,2,3,4 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 123期号:10页码:8766-8777 |
| 关键词 | longitudinal difference midlatitude ionosphere |
| ISSN号 | 2169-9380 |
| DOI | 10.1029/2017JA024927 |
| 英文摘要 | Longitudinal variations of electron density (Ne) near zero magnetic declination lines at midlatitude ionosphere have been disclosed earlier in some longitude regions. However, its global picture remains unclear. In this study, Ne at midlatitudes (40-50 degrees magnetic latitude) within 170- to 550-km altitudes obtained from Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) satellites for low solar activity (2006-2011) are used to investigate the local time, seasonal, altitudinal, and hemispheric variations of Ne (difference between Ne and its zonal mean). Results indicate (1) Delta Ne showing different patterns below 180 km and above 220 km and (2) an eastward phase shift of Delta Ne above 220 km. The Delta Ne above 220 km shows wave-1 longitudinal structure during forenoon in northern winter, which differs from the wave-2 longitudinal structure in other seasons. The Delta Ne below 180 km presents solstice asymmetries and wave-1 longitudinal structures. (3) On average, Ne above 220km is stronger in North American sector (30-150 degrees W) by 32% compared to Europe-Asian sector (30-150 degrees E), and it is also stronger in Southern Hemisphere by 35% than in Northern Hemisphere. The wave-1 longitudinal structure below 180 km is due to the latitudinal difference of solar zenith angle in magnetic coordinates. The Delta Ne above 220 km has high consistency with that of Delta h(m)F(2) (peak height) indicating significant effects of neutral wind dynamics. Results of the empirical model Horizontal Wind Model 14 further disclose that the vertical drifts due to zonal wind (via magnetic declination) and meridional wind (via its zonal difference) are responsible for the longitudinal structures in Delta Ne above 220 km. Plain Language Summary Longitudinal variation is such that ionospheric parameters show evident zonal difference at a same local time. Many researchers disclosed significant longitudinal variations of electron density on either side of zero magnetic declination lines at midlatitude ionosphere. What is the vertical structure of this longitudinal variation around the world? How does the longitudinal structure vary with season? Longitudinal variation can be presented by Delta Ne which is the difference between Ne and its zonal mean at the same local time. This study provides a comprehensive picture of Delta Ne at the midlatitude ionosphere (40-50 degrees magnetic latitude) within 170- to 550-km altitudes at different local times and seasons during low solar activity (2006-2011). |
| WOS关键词 | INCOHERENT-SCATTER RADAR ; NEUTRAL-AIR WINDS ; EQUIVALENT WINDS ; IONOSONDE MEASUREMENTS ; NIGHTTIME ; MODEL ; TEC ; DEPENDENCE ; UPDATE |
| 资助项目 | National Natural Science Foundation of China[41621063] ; National Natural Science Foundation of China[41774161] ; National Natural Science Foundation of China[41704157] ; National Postdoctoral Program for Innovative Talents[BX20180301] ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000451038700044 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; National Postdoctoral Program for Innovative Talents ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project ; Open Research Project of Large Research Infrastructures of CAS-Study on the interaction between low/midlatitude atmosphere and ionosphere based on the Chinese Meridian Project |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/89617]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Liu, Libo |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qiaoling,Liu, Libo,Balan, N.,et al. Longitudinal Structure of the Midlatitude Ionosphere Using COSMIC Electron Density Profiles[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2018,123(10):8766-8777. |
| APA | Li, Qiaoling.,Liu, Libo.,Balan, N..,Huang, He.,Zhang, Ruilong.,...&Le, Huijun.(2018).Longitudinal Structure of the Midlatitude Ionosphere Using COSMIC Electron Density Profiles.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,123(10),8766-8777. |
| MLA | Li, Qiaoling,et al."Longitudinal Structure of the Midlatitude Ionosphere Using COSMIC Electron Density Profiles".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123.10(2018):8766-8777. |
入库方式： OAI收割
来源：地质与地球物理研究所
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