Investigation of low-latitude E and valley region irregularities: Their relationship to equatorial plasma bubble bifurcation
文献类型:期刊论文
作者 | Li, Guozhu1; Ning, Baiqi1; Patra, A. K.2; Wan, Weixing1; Hu, Lianhuan1 |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS |
出版日期 | 2011-11-17 |
卷号 | 116 |
ISSN号 | 0148-0227 |
DOI | 10.1029/2011JA016895 |
文献子类 | Article |
英文摘要 | The low-latitude E, valley and F region 3 m scale irregularities are studied with the Sanya (18.4 degrees N, 109.6 degrees E, dip latitude 12.8 degrees N) VHF coherent scatter radar. The observations show that the E region irregularities (ERIs) often weaken or disappear during the development of postsunset equatorial plasma bubbles (EPBs) in equinoctial months. However, the valley region irregularities (VRIs) are found to occur during the EPB development and show structures with close relation to those of EPBs. The interesting aspect is that the ERI disruption and VRI generation are simultaneously detected. In terms of the electric field coupling from the equatorial F region down to low-latitude E and valley regions, the polarization electric fields (PEFs) associated with the EPB bifurcation are suggested to play key roles in the evolution of ERIs and VRIs. It is shown that the mapping of upward and eastward PEFs generated within the equatorial west tilted bubble would inhibit the occurrence of low-latitude ERIs. However, for the east tilted bubble structure, the associated downward PEFs might map to the low-latitude valley region and play an active role for the development of 3 m scale irregularities through gradient drift instability. |
WOS关键词 | SPREAD-F ; MAGNETIC FIELD ; MANIFESTATION ; DISRUPTION ; RADAR |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000297259600004 |
资助机构 | Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; 41074113 ; 41074113 ; 41074113 ; 41074113 ; 41174136) ; 41174136) ; 41174136) ; 41174136) ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; 41074113 ; 41074113 ; 41074113 ; 41074113 ; 41174136) ; 41174136) ; 41174136) ; 41174136) ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; 41074113 ; 41074113 ; 41074113 ; 41074113 ; 41174136) ; 41174136) ; 41174136) ; 41174136) ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Natural Science Foundation of China(40904038 ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; Chinese Academy of Sciences(KZCX2-YW-Y10) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; National Important Basic Research Project of China(2011CB811405) ; 41074113 ; 41074113 ; 41074113 ; 41074113 ; 41174136) ; 41174136) ; 41174136) ; 41174136) |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/73598] |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Li, Guozhu |
作者单位 | 1.Chinese Acad Sci, Beijing Natl Observ Space Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Natl Atmospher Res Lab, Gadanki 517112, Andhra Pradesh, India |
推荐引用方式 GB/T 7714 | Li, Guozhu,Ning, Baiqi,Patra, A. K.,et al. Investigation of low-latitude E and valley region irregularities: Their relationship to equatorial plasma bubble bifurcation[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2011,116. |
APA | Li, Guozhu,Ning, Baiqi,Patra, A. K.,Wan, Weixing,&Hu, Lianhuan.(2011).Investigation of low-latitude E and valley region irregularities: Their relationship to equatorial plasma bubble bifurcation.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,116. |
MLA | Li, Guozhu,et al."Investigation of low-latitude E and valley region irregularities: Their relationship to equatorial plasma bubble bifurcation".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 116(2011). |
入库方式: OAI收割
来源:地质与地球物理研究所
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