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赤道低纬电离层瑞利-泰勒不稳定性初始扰动波数的临界值

孙志强 方涵先 汪四成 马杰

孙志强, 方涵先, 汪四成, 马杰. 赤道低纬电离层瑞利-泰勒不稳定性初始扰动波数的临界值[J]. 空间科学学报, 2018, 38(6): 871-878. doi: 10.11728/cjss2018.06.871
引用本文: 孙志强, 方涵先, 汪四成, 马杰. 赤道低纬电离层瑞利-泰勒不稳定性初始扰动波数的临界值[J]. 空间科学学报, 2018, 38(6): 871-878. doi: 10.11728/cjss2018.06.871
SUN Zhiqiang, FANG Hanxian, WANG Sicheng, MA Jie. Critical Value of Initial Disturbance Wave-number Affecting Rayleigh-Taylor Instability in Equatorial and Low-latitude Ionosphere[J]. Journal of Space Science, 2018, 38(6): 871-878. doi: 10.11728/cjss2018.06.871
Citation: SUN Zhiqiang, FANG Hanxian, WANG Sicheng, MA Jie. Critical Value of Initial Disturbance Wave-number Affecting Rayleigh-Taylor Instability in Equatorial and Low-latitude Ionosphere[J]. Journal of Space Science, 2018, 38(6): 871-878. doi: 10.11728/cjss2018.06.871

赤道低纬电离层瑞利-泰勒不稳定性初始扰动波数的临界值

doi: 10.11728/cjss2018.06.871
基金项目: 

国家自然科学基金项目(40505005)和国家重点实验室专项基金项目共同资助

详细信息
    作者简介:

    孙志强,E-mail:sunzq830259@foxmail.com

    通讯作者:

    方涵先,E-mail:fanghx@qq.com

  • 中图分类号: P352

Critical Value of Initial Disturbance Wave-number Affecting Rayleigh-Taylor Instability in Equatorial and Low-latitude Ionosphere

  • 摘要: 在文献[1]推导的基础上将不稳定判据扩展到±30°磁纬之间的低纬地区.为研究初始扰动波数对等离子体泡的影响,分析了λmin随初始扰动波数的变化规律,选择二分法计算λmin=1时的临界波数αc,并分析αc随经纬度、太阳活动、季节、地方时以及水平东向电场强度的变化.主要结论如下:αc随经纬度、季节、太阳活动以及地方时的变化规律和等离子体泡及闪烁活动的规律基本一致,αc越小,等离子体泡越容易产生;水平东向电场增强有利于等离子体泡形成.αc的值对人工影响电离层时选择最优扰动条件具有一定的指导意义.

     

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出版历程
  • 收稿日期:  2017-06-05
  • 修回日期:  2017-12-20
  • 刊出日期:  2018-11-15

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