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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Meteor observations using the Davis mesosphere-stratosphere-troposphere radar
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Meteor observations using the Davis mesosphere-stratosphere-troposphere radar

机译：使用戴维斯流星观测mesosphere-stratosphere-troposphere雷达

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摘要

The Davis mesosphere-stratosphere-troposphere (MST) radar (69°S, 78°E) was installed in February 2003. Although the primary interest is the observation of polar mesosphere summer echoes, external transmit and receive antennas were installed to allow all-sky interferometric meteor radar observations. This paper presents the first results from the meteor observations. The annual count rate variation shows good agreement with previous high-latitude observations, peaking in midsummer and minimizing in early spring. The height distribution shows significant annual variation, with minimum (maximum) peak heights and maximum (minimum) widths observed in early spring (midsummer). Radiant mapping has been used to identify the Southern delta-Aquarid Sagittariid and July Phoenicid meteor showers, and to investigate sources of sporadic meteors. Winds and temperatures derived from the meteor observations are also presented, showing good agreement with independent colocated measurements. There is some indication that the winds below the peak height of the meteor height distribution are smeared to lower heights, which may be indicative of a previously undocumented bias in meteor wind estimates.
机译：戴维斯mesosphere-stratosphere-troposphere(MST)雷达(69°、78°E)是安装在2003年2月。夏季极地中间层的观察回声,外部传输和接收天线安装允许全天干涉吗流星雷达观测。第一个流星观测的结果。一年一度的计数率变化显示良好协议与先前的高纬度地区观察,在盛夏和最小化达到顶峰在早春。重要的年度变化,最低(最大值)峰的高度和最大(最小)宽度在早春(仲夏)。辐射映射已被用于识别南部delta-Aquarid Sagittariid和7月Phoenicid流星雨,进行调查零星的流星的来源。温度来自流星的观察也提出,显示协议好吗独立托管的测量。表明风低于峰高流星的高度分布的涂抹降低了高度,这可能暗示的流星风先前未登记的偏见估计。

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