The neutral winds in the Mesosphere and Lower Thermosphere (MLT) region have been observed at King Sejong Station, Antarctica using a meteor radar and a Fabry‐Perot interferometer (FPI) simultaneously. These two independent MLT wind measurements are compared to each other to identify the characteristics of FPI measurement. Instead of using a fixed emission height for FPI winds, for the first time, we consider the temporal variations of airglow emission layer in association with corresponding meteor height distributions for more accurate comparison between the FPI and meteor radar winds. The temporal variations of the airglow emission layers are examined from the inverse relationship between the height integrated emission rate and the peak emission height derived from the TIMED/SABER observations. It is found that FPI winds are consistently smaller than meteor radar winds and the discrepancy becomes larger for OI emission at higher altitude, which may be related to large wind shear in the MLT region and variabilities of the emission layers. Finally, we found that the FPI can provide reliable height‐averaged winds in the MLT region where existing a strong wind shear from this simultaneous MR wind measurements.

中文翻译：

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法布里-珀罗干涉仪和流星雷达测风在极地更年期附近地区的比较

在南极洲金世宗站同时使用流星雷达和法布里-珀罗干涉仪（FPI）观测到了中层和较低热层（MLT）区域的中性风。将这两个独立的MLT风测量结果相互比较，以识别FPI测量的特征。我们第一次没有使用固定的FPI风发射高度，而是考虑了气辉发射层的时间变化以及相应的流星高度分布，以便更精确地比较FPI和流星雷达风。根据从TIMED / SABER观测得出的高度综合发射率与峰值发射高度之间的反比关系，检查了气辉发射层的时间变化。结果发现，FPI风始终小于流星雷达风，并且在较高高度的OI排放差异越来越大，这可能与MLT地区的大风切变和排放层的变化有关。最后，我们发现FPI可以在MLT地区提供可靠的高度平均风，而该地区同时进行的MR风测量存在强烈的风切变。