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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >A statistical analysis of equatorial plasma bubble structures based on an all-sky airglow imager network in China
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A statistical analysis of equatorial plasma bubble structures based on an all-sky airglow imager network in China

机译：赤道的统计分析等离子体泡沫基于全天大气光成像仪结构网络在中国

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摘要

This paper investigates the statistical features of equatorial plasma bubbles (EPBs) using airglow images from 2012 to 2014 from a ground-based network of four imagers in the equatorial region of China. It is found that (1) EPBs mainly occur during 21:00–00:00 local time (LT) in equinoxes. There is an asymmetry in occurrence rates between March (June) and September equinoxes (December solstices). (2) Most EPBs occur in groups of two to six depletions. The distance between adjacent EPB depletions is ~100–700 km, and the average is 200–300 km. The zonal extension of an EPB group is usually less than 1500 km but can reach 3000 km. (3) EPBs usually have a maximum drift velocity near 100 m/s at 21:00–22:00 LT in 9.5°-1.5° geomagnetic latitude and then decrease to 50–70 m/s toward sunrise. (4) The averaged westward tilt angle of most EPBs (with respect to the geographic north-south) increased from 5°–10° to 23°–30° with LT between 20:00 and 03:00 LT, then decreasing to 10°–20° toward sunrise. (5) When 90140. The maximum PMLE increases by 3.4°–5.5° when F_(10.7) changes from 90 to 190. (6) The EPB occurrence patterns and zonal drift velocities are significantly different from those at Kolhapur, India, which locates west to our stations by 20.0°–32.0° in longitude.
机译：本文调查的统计特性使用大气光赤道等离子体泡沫(epb)从2012年到2014年从地面图像在赤道地区网络中四个影像中国。在春分和秋分期间21:00-00:00当地时间(LT)。有一个不对称发生利率之间3月(6月)和9月春分和秋分(12月二至点)。6消逝。EPB消逝~ 100 - 700公里,平均200 - 300公里。通常是不到1500公里,但可以达到3000公里。速度接近100 m / s 21:00-22:00 LT9.5°-1.5°地磁纬度,然后减少向日出50 - 70 m / s。向西倾斜角度的大多数组件(对地理南北)增加从5°-10°与LT 20:00至23°-30°03:00 LT,然后减少到10°-20°日出。当90 f(10.7) 140。3.4°-5.5°f(10.7)当变化从90年到190年。(6)环境保护局发生模式和纬向漂移速度是明显不同的戈尔,印度位于西给我们站在经度20.0°-32.0°。

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