帮助 关于我们

返回检索结果

2006年4月13~17日西太平洋地区电离层暴时特性研究
An investigation of ionospheric responses during the magnetic storm of 13~17 April 2006 at Western Pacific area

查看参考文献27篇

文摘 本文利用西太平洋地区的15个电离层台站的测高仪数据和国际GPS服务中心IGS 36个站提供的TEC数据,以及由美国喷气推进动力学实验室提供的Jason-1 TEC数据对2006年4月13~17日间一次由冕洞高速流所引发的磁暴所造成的电离层效应进行了分析.分析结果表明这次电离层暴呈现出显著的纬度效应,f_oF_2和TEC等参量显示在磁暴主相期间对称分布的强正暴效应中心在磁纬±30°~±40°,且持续时间超过12 h.负暴效应被限制在中高纬地区,在磁暴进入恢复相时,开始向低纬渗透,且具有明显的地方时效应.TIMIED卫星测量的Σ[O/N_2]显示磁暴发生后,暴时环流使得中低纬地区的Σ[O/N_2]有大幅增加,而中高纬地区则显著下降.通过对hmF2的分析发现磁暴主相期间,有磁层电场向中低纬地区穿透,且持续时间较长为1~3 h.因此这次强正暴效应可能是由风场、电场和化学成分这三个因素的共同作用造成的.这次磁暴造成的电离层暴响应非常复杂,对造成各种正负暴的物理和化学机制还需要进一步的研究.
其他语种文摘 Based on a large data base from 15 ionosonde stations and 36 GPS stations combining with TEC data measured from the Oceanic satellite Jason-1, a case study is made on the ionospheric responses at Western Pacific area to the magnetic storm triggered by coronal hole high-speed streams during 13-17 April 2006. The results show that the ionospheric storm has a clear latitudinal dependence. f_0F_2 and TEC increased dramatically in the region where the magnetic latitude is between ± 30° and ± 40° and last more than 12 hours. Negative phase was confined at middle-high latitude during the storm main phase and start to pervade to middle-low latitudes as the Earth rotated to the nightside. TIMED satellite had shown that the ∑[ O/N_2 ] decreased substantially at high-middle latitude area and increased significantly at middle-low latitudes. Through the analysis on the h_mF_2 variation, we had observed the magnetospheric electric fields penetrating to the low-middle latitude ionosphere with long-duration, 1~3 hours, during the storm main phase when IMF B_z remained southward. Therefore, the strong positive phase at this area might be caused by additional eastward electric fields, equatorward neutral winds as well as composition changes. Further study is needed to elucidate the effects of various physical and chemical processes on the plasma at this Western Pacific area.
来源 地球物理学报 ,2007,50(4):957-968 【核心库】
关键词 磁暴 ; 电离层暴 ; 中低纬
地址

中国科学院地质与地球物理研究所, 北京, 100029

语种 中文
文献类型 研究性论文
ISSN 0001-5733
学科 地球物理学
基金 国家自然科学基金项目 ;  中国科学院知识创新工程重要方向项目
文献收藏号 CSCD:2839724

参考文献 共 27 共2页

1.  Liu L. The low latitude ionospheric effects of the April 2000 magnetic storm near the longitude 120°E.. Earth Planets Space,2004,56:607-612 被引 3    
2.  Lin C H. Theoretical study of the low-and midlatitude ionospheric electron density enhancement during the October\2003 \superstorm:relative importance of the neutral wind and the electric field.. J.Geophys.Res,2003,110:A12312 被引 1    
3.  Rüster R. Negative ionospheric storms caused by thermospheric winds. J Atmos Sol Terr Phys,1976,38:593-598 被引 1    
4.  Rishbeth H. The F-layer at sunrise.. J. Atmos. Terr. Phys,1961,21:263-276 被引 10    
5.  Ho C M. A comparative study of ionospheric total electron content measurements using global ionospheric maps of GPS TOPEX radar and the Bent model. Radio Sci,1997,32(4):1499-1512 被引 7    
6.  Imel D A. Evaluation of the TOPEX/POSEIDON dual frequency ionosphere correction. J Geophys Res,1994,99(C12):24895-24906 被引 11    
7.  Mendillo M. Storms in the ionosphere:patterns and processes for total electron content. Rev Geophys,2006,44:RG4001 被引 14    
8.  Fejer B G. Low latitude electrodynamic plasma drifts:a review. J Atmos Terr Phys,1991,53:677-693 被引 8    
9.  Rishbeth H. Field-aligned and field-perpendicular velocities in the ionospheric F2 layer. J Atmos Terr Phys,1978,40:767-784 被引 5    
10.  Dudeney J R. The accuracy of simple methods for determining the height of the maximum electron concentration of the F2-layer from scaled ionospheric characteristics. J Atmos Terr Phys,1983,45:629-640 被引 6    
11.  沈长寿. 1989年3月特强磁暴期间的电离层暴. 地球物理学报,2004,47(3):385-391 被引 4    
12.  张奇伟. 不同类型磁暴和中低纬电离层暴的关系. 地球物理学报,1995,38(5):581-589 被引 12    
13.  苏元智. 1986年2月特大电离层暴的动力学表现. 地球物理学报,1989,32(5):507-515 被引 7    
14.  Yeh C C. Global ionospheric effects of the October 1989 geomagnetic storm. J Geophys Res,1994,99(A4):6201-6218 被引 2    
15.  Zhao B. Responses of equatorial anomaly to the October-November 2003 superstorms. Ann Geophys,2005,23:693-706 被引 7    
16.  Mannucci A J. Dayside global ionospheric response to the major interplanetary events of October 29-30 2003Halloween Storms. Geophys Res Lett,2005,32:L12S02 被引 7    
17.  Tsurutani B T. Global dayside ionospheric uplift and enhancement associated with interplanetary electric fields. J Geophys Res,2004,109:A08302 被引 8    
18.  Vlasov M. Analysis of ground-based and satellite observations of F-region behavior during the great magnetic storm of 15 July. J Atmos Sol Terr Phys,2003,65:1223-1234 被引 4    
19.  Burns A G. Geomagnetic storm effects in low-to middle-latitude upper thermosphere. J Geophys Res,1995,100(A8):14673-14691 被引 2    
20.  Fuller-Rowell T J. On the seasonal response of the thermosphere and ionosphere to geomagnetic storms. J Geophys Res,1996,101(A2):2343-2353 被引 13    
引证文献 4

1 孙凌峰 2001年3月19日至22日期间电离层暴分析 地球物理学进展,2009,24(5):1554-1560
被引 6

2 於晓 地磁暴期间中国中低纬电离层的CIT研究 空间科学学报,2010,30(3):221-227
被引 2

显示所有4篇文献

论文科学数据集
PlumX Metrics
相关文献

 作者相关
 关键词相关
 参考文献相关

版权所有 ©2008 中国科学院文献情报中心 制作维护:中国科学院文献情报中心
地址:北京中关村北四环西路33号 邮政编码:100190 联系电话:(010)82627496 E-mail:cscd@mail.las.ac.cn 京ICP备05002861号-4 | 京公网安备11010802043238号