Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Geophysics》 2002-02
Add to Favorite Get Latest Update

A COMPARATIVE STUDY OF MAGNETIC STORM EFFECTS ON THE IONOSPHERE IN THE POLAR CAP AND AUROAL OVAL—F-REGION NEGATIVE STORM

MA SHU YING 1,3) LIU HUI XIN 1,2) K. SCHLEGEL 2) 1) College of Electronic Information Wuhan University, Wuhan 430072, China 2) Max Planck Institut fr Aeronomie, D 37191 Katlenburg Lindau, Germany 3) Wuhan Ionospheric Observatory,  
With coordinated EISCAT and ESR radar data, ionospheric storm in both the dayside polar cap and the auroral oval during the major magnetic storm of May 15, 1997 is studied, focusing on the F region negative storm. It is found that in both the polar cap and the auroral zone a F1 like peak of ionization appeared at 190km height during the main and recovery phases of the storm; while the normal F2 peak disappeared and great depletions of electron density occurred. In contrast, variations of ion temperature are very different in the two regions, with little change in polar cap while strong enhancement in auroral oval, implying a difference in key mechanisms for the negative storms in the two regions. The increase of O + ion loss rate through chemical reaction due to Joule heating and enhancement of ion temperature resulted from strong electric field played a crucial role in the auroral zone. The plasma transport process, however, especially the long lasting large ion upflow, is of great importance in the polar cap. In addition, large F region electron density depletion associated with null Joule heating and ion temperature enhancement is observed by EISCAT radar in the transient region of the two cells of plasma convection, which is caused by strong field aligned O + ion outflow when the radar passing through probably under the polar cleft ion fountain region. [
【Fund】: 国家自然科学基金 ( 4 0 0 74 0 39);; 国家重点基础研究 973项目 (G2 0 0 0 0 784 0 7);; 教育部高等学校博士学科 点专项科研基金资助课题
【CateGory Index】: P352
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 3 Hits
1 Huo Liang Ma Shuying Zhou Yunliang Dang Ge (College of Electronic Information,Wuhan University,Wuhan 430079,China);ION UPFLOW IN THE TOPSIDE POLAR IONOSPHERE—OBSERVATIONS BY THE DMSP SATELLITE[J];Chinese Journal of Polar Research;2006-02
2 DANG Ge, MA ShuYing & ZHOU YunLiang Key Lab of Geospace Environment and Geodesy, CNEM, College of Electronic Information, Wuhan University, Wuhan 430079, China;Morphology of polar ionospheric O~+ ion upflow: FAST observations during quiet time[J];科学通报(英文版);2007-24
3 YUAN Zhigang,TIAN Anmin,DENG Xiaohua(School of Electronic Information,Wuhan University,Wuhan 430072,Hubei,China);Observation and Analysis of the Ionosphere Response to Substorms by GPS[J];Journal of Wuhan University(Natural Science Edition);2007-03
【Citations】
Chinese Journal Full-text Database 1 Hits
1 MA Shuying ;LIU Huixin; XU Jisheng(Department of SPace Physics, Wuhan University, 430072);STORM-TIME JOULE HEATING OF AURORAL THERMOSPHERE AND IONIZATION DEPLETION IN THE F-REGION ──EISCAT RADAR OBSERVATION[J];CHINESE JOURNAL OF SPACE SCIENCE;1999-01
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 JAO\ Weixin (Department of Geophysics, Peking University, Beijing, 100871);The Correlation Between Field Aligned Currents and Geomagnetic and Substorm Activity[J];ACTA SCICENTIARUM NATURALUM UNIVERSITIS PEKINESIS;1996-03
2 NING Bai qi,LIN Chen,WANG Bing kang (Wuhan Institute of Physics and Mathemaitcs, The Chinese Academy of Sciences,Wuhan 430071,China);Uparading and networking of DGS 256 digisonde[J];CHINESE JOURNAL OF RADIO SCIENCE;2000-01
3 YUAN Zhi gang NING Bai qi YUAN Hong (Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan Hubei 430071, China);Real-time sounding and analyzing of HF Doppler shift and angle of arrival[J];Chinese Journal of Radio Science;2001-04
4 LI JUN(Wuhan Institute of Physis, Academia Sinica);DOPPLER FREQUENCY SHIFTS OF A HF RADIO WAVE CAUSED BY THE IONOSPHERIC ACOUSTIC-GRAVITY WAVES[J];Chinese Journal of Geophysics;1983-01
5 LI LI-BIN WU ZHEN-HUA NING BAI-QI LI JUN(Wuhan Institute of Physics, Acadcmia Sinica);SOME TECHNICAL ASPECTS OF A THREE-STATION ARRAY FOR OBSERVATION OF THE IONOSPHERIC DISTURBANCES[J];Chinese Journal of Geophysics;1987-06
6 XIAO ZUO HO HUNG-XIAN ZOU JI-QING ZHANG SHU-LI(Department of Geophysics, Peking University, Beijing);DQ-87 DATA PROCESSING SYSTEM FOR GEOPHYSICAL OBSERVATIONS[J];Chinese Journal of Geophysics;1987-06
7 ZHANG ZHAO-MING TSCHU KANG-KUN(Institute of Geophysics, Academia Sinica, Beijing);ANALYSIS OF IONOSPHERIC DISTURBANCES BY MEANS OF HIGH RESOLUTION DOPPLIONOGRAMS[J];Chinese Journal of Geophysics;1988-02
8 WAN WEI-XING LI JUN(Wuhan Institute of Physics, Academia Sinica);HF RADIO DIAGNOSTICS OF THE IONOSPHERIC AGW DISTURBANCE[J];Chinese Journal of Geophysics;1989-06
9 WAN WEI-XING Li JUN(Wuhan Institute of Physics, Academia Sinica; Wuhan 430071, P. R. China)ZHANG ZHAO-MING B. W. REINISCH(Center for Atmospheric Research University of Lowell, 450 Aiken St. Massachusetts, Ma. 01854, USA);STUDY OF IONOSPHERIC GRAVITY WAVE DISTURBANCES FROM DRIFT MEASUREMENTS OF A DIGISONDE[J];Chinese Journal of Geophysics;1993-05
10 HE LONG-SONG;LIU RUI-YUAN;LIU SHUN-LIU;YONG-HUA (Polar Research Institute of China, Shanghai 200129, China);OVERALL PROPERTIES OF F REGION AROUND SOLAR MINIMUM AT ZHONGSHAN STATION, ANTARCTICA[J];Chinese Journal of Geophysics;2000-03
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 WAN Weixing(Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029);A Review on the Ionospheric Research:Chinese Works During 2006—2008[J];Chinese Journal of Space Science;2008-05
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved