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《Chinese Journal of Geophysics》 1993-01
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NUMERICAL SIMULATION OF SPREAD-F IN LOW AND MID-LATITUDES

XIE HONG XIAO Zuo(Department of Geophysics, Peking University , Beijing 100871)  
In this paper, a linear growth rate for the collisional Rayleigh-Taylor instability in the ionospheric F region of low and mid-latitudes is derived and numerical simulations for certain typical cases conducted. The results show that the growth rate becomes smaller as the latitude increases. In mid-latitudes, it is hard for a pure R-T mode to grow without a proper external horizontal electric field East-Westly directed, in hose latitudes, initial disturbances will soon be stabilized. It is also shown that although the growth rate of E×B mode driven by the external electric field becomes smaller,, too, as latitude increases, the actual change rate is less than that of the R-T mode. The numerical simulation with non-linear effects included gives out the results that non-linear E×B drift can not make the initial density depletion (bubbles) rising above the F peak in mid-latitude zones, instead, in the lower part of F region, a larger area of electron enhancement can evolve. This is in agree nent with some observational characteristics of the mid-latitude spread-F. It is thought that the collisional R-T instability together with a proper East-West electric field is probably one of the mechanism leading to the development of spread-F in mid-latitudes.
【Fund】: 国家自然科学基金
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【References】
Chinese Journal Full-text Database 5 Hits
1 ZHANG Tianhua XIAO Zuo (Geophysics Department,Peking University,Beijing,100871);Model of Spread F Longitudinal Effect[J];Acta Scicentiarum Naturalum Universitis Pekinesis;2001-03
2 HUANG CHAO-SONG(Wuhan Institute of Physics, Academia Sinica, Wuhan 430071, China)M. C. KELLEY(School of Electncal Engineering, Cornell Universty, Ithaca, NY 14853, USA);NUMERICAL SIMULATIONS OF LARGE SCALE PERTURBATIONS IN THE MIDLATITUDE F REGION[J];Chinese Journal of Geophysics;1997-03
3 Xiao Zuo; Xie Hong(Department of Ceophysics, Peking University, Beijing 100871);EQUATORIAL SPREAD-F INITIATED BY ACOUSTIC-GRAVITY WAVES[J];Chinese Journal of Space Science;1994-03
4 ZHANG Tianhua; XIAO Zuo(Geophysics Department, Peking University, Beijing 100871);THE CHARACTERISTICS AND RELATIONSHIPS OF EQUATORIAL AND MID-LATITUDE SPREAD-F[J];CHINESE JOURNAL OF SPACE SCIENCE;2000-03
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【Co-references】
Chinese Journal Full-text Database 3 Hits
1 Xie Hong;Liu Binsha;Xiao Zuo (Department of Geophysics,Peking University Beijing,100871);The Role of Neutral Wind in Spread-F of Low and Mid-latitudes[J];Acta Scicentiarum Naturalum Universitis Pekinesis;1996-01
2 HUANG CHAO-SONG; LI JUN(Wuhan Institute of Physics,Academic Sinica,Wuhan 430071);SPATIAL AND TEMPORAL EVOLUTION OF THE RAYLEIGH-TAYLOR INSTABILITY INITIATED BY ATMOSPHERIC GRAVITY WAVES[J];Chinese Journal of Geophysics;1995-03
3 Xiao Zuo; Xie Hong(Department of Ceophysics, Peking University, Beijing 100871);EQUATORIAL SPREAD-F INITIATED BY ACOUSTIC-GRAVITY WAVES[J];Chinese Journal of Space Science;1994-03
【Secondary References】
Chinese Journal Full-text Database 8 Hits
1 ZHEN Wei-min1 FENG Jian1,2 CHEN li1 HAN Yi-ping2(1.China Research Institute of Radiowave Propagation,QingdaoShandong 266071,China;2.School of Science,Xidian university,Xi' an Shaanxi 710071,China);Investigation of low-latitude ionospheric irregularities by using multi-station GPS multi-link signals[J];Chinese Journal of Radio Science;2007-01
2 XIAO ZUO (Department of Geophysics, Peking University, Beijing 100871, China);RESEARCHES ON IONOSPHERIC PHYSICS IN RECENT YEARS IN CHINA[J];Chinese Journal of Geophysics;1997-S1
3 XIAO Sai-Guan,HAO Yong-Qiang,ZHANG Dong-He,XIAO ZuoDepartment of Geophysics,Peking University,Beijing 100871,China;A case study on whole response processes of the ionosphere to typhoons[J];Chinese Journal of Geophysics;2006-03
4 XIE Hong; XIAO Zuo(Department of Geophysics, Peking University, 100871)WANG Xianmin(Institate of Space-Medico Engineering);A STUDY ON TOPOLOGICAL FEATURE OF THE EQUATORIAL SPREAD-F UNDER THE EXISTENCE OF ACOUSTIC-GRAVITY WAVES[J];CHINESE JOURNAL OF SPACE SCIENCE;1997-04
5 ZHANG Tianhua; ZHANG Donghe; XIAO Zuo(Department of Geophysics, Peking University 100871);THE EFFECTS OF THE VERTICAL WAVELENGTHOF THE GRAVITY WAVES ON ESF[J];CHINESE JOURNAL OF SPACE SCIENCE;1999-02
6 ZHANG Tianhua; XIAO Zuo(Geophysics Department, Peking University, Beijing 100871);THE CHARACTERISTICS AND RELATIONSHIPS OF EQUATORIAL AND MID-LATITUDE SPREAD-F[J];CHINESE JOURNAL OF SPACE SCIENCE;2000-03
7 LUO Zhixian~(1,2) SHI Jiankui~1 GAO Taichang~2 WANG Guojun~1 SHANG Sheping~1 WANG Xiao~1 FANG Hanxian~2 WANG Zhao~3 G A Zherebtsov 1(State Key Laboratory of Space Weather,Center for Space Science and Applied Research, Chinese Academy of Sciences,Beijing 100190) 2(Institute of Meteorology,People's Liberation Army University of Science and Technology) 3(College of Materials Science and Chemical Engineering,Hainan University) 4(Institute of Solar Terrestrial Physics,Russian Academy of Sciences,Irkutsk Russia);Influence of the Storm on the Ionospheric Spread-F in Hainan Region[J];Chinese Journal of Space Science;2010-01
8 QIAO Xiao-lin,CAO Bing-xia(Harbin Institute of Technology,Harbin 150001,China);Research Progress of ELF/VLF Radiation Generation from Ionosphere Modulated by Powerful HF Waves[J];Journal of Astronautics;2009-03
China Proceedings of conference Full-text Database 1 Hits
1 XIAO ZUO (Department of Geophysics, Peking University, Beijing 100871, China);RESEARCHES ON IONOSPHERIC PHYSICS IN RECENT YEARS IN CHINA[A];[C];1997
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