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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >A survey of plasma irregularities as seen by the midlatitude Blackstone SuperDARN radar
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A survey of plasma irregularities as seen by the midlatitude Blackstone SuperDARN radar

机译：等离子体在违规行为的调查中间纬度百仕通SuperDARN雷达

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The Super Dual Auroral Radar Network (SuperDARN) is a chain of HF radars that monitor plasma dynamics in the ionosphere. In recent years, SuperDARN has expanded to midlatitudes in order to provide enhanced coverage during geomagnetically active periods. A new type of backscatter from F region plasma irregularities with low Doppler velocity has been frequently observed on the nightside during quiescent conditions. Using three years of data from the Blackstone, VA radar, we have implemented a method for extracting this new type of backscatter from routine observations. We have statistically characterized the occurrence properties of the Sub Auroral Ionospheric Scatter (SAIS) events, including the latitudinal relationships to the equatorward edge of the auroral oval and the ionospheric projection of the plasmapause. We find that the backscatter is confined to local night, occurs on ≈70% of nights, is fixed in geomagnetic latitude, and is equatorward of both the auroral region and the plasmapause boundary. We conclude that SAIS irregularities are observed within a range of latitudes that is conjugate to the inner magnetosphere (plasmasphere).
机译：超级双极光雷达网络(SuperDARN)高频雷达监控等离子体链吗在电离层动力学。SuperDARN已经扩大到情理之中期间提供增强的报道眼睛活跃的时期。后向散射从F地区等离子违规行为经常多普勒速度一直较低观察到在静止在阴面条件。百仕通(Blackstone)弗吉尼亚州雷达,我们实现了一个这种新型的检测方法后向散射从日常观察。统计特征发生子极光电离层散射的属性(SAIS)事件,包括纬度的的朝赤道方向边缘的关系极光椭圆和电离层的投影等离子体层顶。局限于当地的晚上,发生在≈70%晚上,在地磁纬度是固定的,极光区域和阻碍等离子体层顶边界。违规行为是观察到的范围内纬度共轭的内心磁气圈(等离子体层)。

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