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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >First results of a ULF wave injected on open field lines by Space Plasma Exploration by Active Radar (SPEAR)
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First results of a ULF wave injected on open field lines by Space Plasma Exploration by Active Radar (SPEAR)

机译：第一个ULF波注入在开放领域的结果行空间等离子体勘探主动雷达(枪)

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摘要

We present strong evidence that on 23 February 2007 between 2230 and 2330 UT the Space Plasma Exploration by Active Radar (SPEAR) system successfully modified the ionospheric electron density inside the northern polar cap. The modulated modification led to the generation of a small-scale ultralow frequency (ULF) wave on open field lines which was detected by ground-based magnetometers in the vicinity of the radar. It was not registered by magnetometer stations elsewhere inside the northern polar cap or at lower latitudes. The solar wind conditions are investigated, and although wave activity at the modulation frequency is present, it is shown that the local ULF wave is unlikely to originate from that activity.
机译：我们提出强有力的证据表明,2月23日2007年之间的2230年和2330年UT空间等离子体探索了主动雷达(枪)系统成功修改了电离层电子密度在北方极地冰冠。调制修改导致的一代小规模的超低频(ULF)波在开放电场线检测到地面磁力计附近的雷达。不是由磁力仪站注册的吗在北方极地冰冠或其他地方低纬度地区。在调查中,虽然波活动调制频率存在,表明当地的ULF波不太可能源自这活动。

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