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首页> 外文期刊>Journal of atmospheric and solar-terrestrial physics >Multi-year observations of mesoscale variances of hydroxyl nightglow near the mesopause at Tory and Zvenigorod
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Multi-year observations of mesoscale variances of hydroxyl nightglow near the mesopause at Tory and Zvenigorod

机译：Tory and Zvenigorod的中源羟基夜蛾患者秋季夜总会的多年观察

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摘要

Digital difference filters were used for the analysis of data of the spectral observations of the rotational temperature and emission intensity of vibrationally excited hydroxyl (OH*) at altitudes 85-90 km at observatories Zvenigorod (56 degrees N, 37 degrees E) for 2004-2016 years and Tory (52 degrees N, 103 degrees E) for 2012-2017. The monthly-average values and standard deviations of mesoscale perturbations of the OH* emission characteristics with periods 0.8-11 h are obtained. These mesoscale perturbations may reflect internal gravity waves (IGWs) in the mesopause region. To filter out mesoscale perturbations, differences between the sequential values of the OH* emission characteristics, averaged over the intervals by duration from 0.5 h to 2 h, were obtained. The average monthly variances of mesoscale perturbations in the OH* rotational temperature obtained at Tory are larger compared to Zvenigorod ones. Average seasonal changes of relative mesoscale variances demonstrate maxima in winter and in summer, with the summer maximum shifted closer to spring months for the Tory station. The reasons for the differences could be different orography and jet streams in the lower and middle atmosphere, also different spectra of IGW horizontal wavelengths due to different geometry of observations at Tory and Zvenigorod.
机译：数字差过滤器用于分析振动激发羟基（OH *）的旋转温度和发射强度的旋转温度和发射强度的数据，在2004年的观察区（56摄氏度为56摄氏度，37℃） 2016年和Tory（52°N，103摄氏度）2012-2017。获得了OH *发射特性的月平均值和标准偏差，oh *发射特性与周期为0.8-11 h。这些Mescle扰动可以反映中断区域中的内重波（IGW）。为了过滤掉MESCLE扰动，获得OH *发射特性的顺序值之间的差异，通过持续时间从0.5小时平均为0.5小时。与Zvenigorod的OH *旋转温度中获得的oH *旋转温度中的MES尺度扰动的平均月度差异。相对Mesoscale Variances的平均季节变化在冬季和夏季展示了最大值，夏季最大的最大转移到Tory Station的春季。由于Tory和Zvenigorod的不同观察几何形状，差异差异的原因可能是下层和中部大气中的不同奇数和中间大气中的射流，以及IGW水平波长的不同。

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