This study uses hourly meteor wind measurements from a longitudinal array of 10 high-latitude SuperDARN high-frequency (HF) radars to isolate the migrating diurnal, semidiurnal, and terdiurnal tides at mesosphere–lower-thermosphere (MLT) altitudes. The planetary-scale array of radars covers 180^∘ of longitude, with 8 out of 10 radars being in near-continuous operation since the year 2000. Time series spanning 16 years of tidal amplitudes and phases in both zonal and meridional wind are presented, along with their respective annual climatologies. The method to isolate the migrating tides from SuperDARN meteor winds is validated using 2 years of winds from a high-altitude meteorological analysis system. The validation steps demonstrate that, given the geographical spread of the radar stations, the derived tidal modes are most closely representative of the migrating tides at 60^∘ N. Some of the main characteristics of the observed migrating tides are that the semidiurnal tide shows sharp phase jumps around the equinoxes and peak amplitudes during early fall and that the terdiurnal tide shows a pronounced secondary amplitude peak around day of year (DOY) 265. In addition, the diurnal tide is found to show a bi-modal circular polarization phase relation between summer and winter.

中文翻译：

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迁移由SuperDARN HF雷达高纬度阵列测得的潮汐气候

这项研究使用来自10个高纬度SuperDARN高频（HF）雷达纵向阵列的每小时流星风测量值，来隔离中层-低层-高温层（MLT）高度的日，潮，半日和三日潮汐潮汐。行星级雷达阵列覆盖^180∘自2000年以来，每10台雷达中就有8台处于近乎连续运行状态。给出了16年潮汐振幅和相位在纬向和经向风中的时间序列，以及各自的年度气候。通过使用来自高空气象分析系统的2年风，验证了从SuperDARN流星风中隔离潮汐潮汐的方法。验证步骤表明，鉴于雷达站的地理分布，得出的潮汐模式最能代表^60∘处的迁徙潮汐。 N.观测到的迁徙潮汐的一些主​​要特征是半日潮在初秋期间显示出在昼夜平分点附近的急剧相跳和峰值振幅，而在昼夜（DOY）265处，地昼潮显示出明显的次级振幅峰值。另外，发现昼夜潮在夏季和冬季之间显示出双峰圆极化相位关系。