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Merging of Storm Time Midlatitude Traveling Ionospheric Disturbances and Equatorial Plasama Bubbles
文献类型：期刊论文
| 作者 | Aa, Ercha; Zou, Shasha; Ridley, Aaron; Zhang, Shunrong; Coster, Anthea J.; Erickson, Philip J.; Liu, Siqing; Ren, Jiaen |
| 刊名 | SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS
 |
| 出版日期 | 2019 |
| 卷号 | 17期号:2页码:285-298 |
| ISSN号 | 1542-7390 |
| DOI | 10.1029/2018SW002101 |
| 英文摘要 | Postsunset midlatitude traveling ionospheric disturbances (TIDs) and equatorial plasma bubbles (EPBs) were simultaneously observed over American sector during the geomagnetic storm on 8 September 2017. The characteristics of TIDs are analyzed by using a combination of the Millstone Hill incoherent scatter radar data and 2-D detrended total electron content (TEC) from ground-based Global Navigation Satellite System receivers. The main results associated with EPBs are as follows: (1) stream-like structures of TEC depletion occurred simultaneously at geomagnetically conjugate points, (2) poleward extension of the TEC irregularities/depletions along the magnetic field lines, (3) severe equatorial and midlatitude electron density (Ne) bite outs observed by Defense Meteorological Satellite Program and Swarm satellites, and (4) enhancements of ionosphere F layer virtual height and vertical drifts observed by equatorial lonosondes near the EPBs initiation region. The stream-like TEC depletions reached 46 degrees magnetic latitudes that map to an apex altitude of 6,800 km over the magnetic equator using International Geomagnetic Reference Field. The formation of this extended density depletion structure is suggested to be due to the merging between the altitudinal/latitudinal extension of EPBs driven by strong prompt penetration electric field and midlatitude TIDs. Moreover, the poleward portion of the depletion/irregularity drifted westward and reached the equatorward boundary of the ionospheric main trough. This westward drift occurred at the same time as the sudden expansion of the convection pattern and could be attributed to the strong returning westward flow near the subauroral polarization stream region. Other possible mechanisms for the westward tilt are also discussed. |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/6984]  |
| 专题 | 国家空间科学中心_空间环境部 |
| 推荐引用方式 GB/T 7714 | Aa, Ercha,Zou, Shasha,Ridley, Aaron,et al. Merging of Storm Time Midlatitude Traveling Ionospheric Disturbances and Equatorial Plasama Bubbles[J]. SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS,2019,17(2):285-298. |
| APA | Aa, Ercha.,Zou, Shasha.,Ridley, Aaron.,Zhang, Shunrong.,Coster, Anthea J..,...&Ren, Jiaen.(2019).Merging of Storm Time Midlatitude Traveling Ionospheric Disturbances and Equatorial Plasama Bubbles.SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS,17(2),285-298. |
| MLA | Aa, Ercha,et al."Merging of Storm Time Midlatitude Traveling Ionospheric Disturbances and Equatorial Plasama Bubbles".SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS 17.2(2019):285-298. |
入库方式： OAI收割
来源：国家空间科学中心
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