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2010年海口上空突发钠层事件观测

DOI: 10.11728/cjss2015.05.566, PP. 566-573

Keywords: 激光雷达,突发钠层,电离层偶发,低纬度地区

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Abstract:

使用钠荧光激光雷达观测2010年低纬度地区海口(20.0°N,110.3°E)上空突发钠层事件.2010年总计观测时间为458h,观测到突发钠层事件38次,即每观测12h有1次突发钠层事件发生.结合武汉上空突发钠层数据,对比巴西低纬度地区数据,揭示低纬度地区突发钠层频发现象.观测到2010年12月30日突发钠层峰值时刻钠层密度廓线具有很好的空间对称性.分析了距海口激光雷达西南约160km中国海南澹州(19.5°N,109.1°E)的测高仪数据,检测了13对突发钠层和电离层偶发事件,结果表明突发钠层与Es有很强的相关性.通过分析低纬度地区上空突发钠层峰值径迹平均速度发现,大多数突发钠层峰值向下运动.

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