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Summer-time nocturnal wave characteristics in mesospheric OH and O-2 airglow emissions

机译：中层OH和O-2气辉发射的夏季夜间波特征

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摘要

The mesospheric temperature mapper (MTM) measurements on mesospheric OH (6, 2) and 02 (0, 1) band emissions from Maui, Hawaii during July, 2002 show significant day-to-day variability. The nocturnal variability reveals prominent wave signatures with a periodicity ranging from 6 to 13 h. For better characterization of the nocturnal wave in the data, a Krassovsky's eta (similar to vertical bar eta vertical bar e(i theta)) analysis was carried out. Deduced Krassovsky parameters show significant variability, with ranges of vertical bar eta vertical bar similar to 1.7-3.9 for the OH data and similar to 4.3-13 for the O-2 data. The phase values of Krassovsky parameters exhibit larger variability, with variations from approximately -91 degrees to +23 degrees for the OH data and -45 degrees to -10 degrees for the O-2 data. Comparison of these values with existing observations and models show large deviations from model values and relatively better agreements with the observed values reported by other investigators. The deduced vertical wavelength from vertical bar eta vertical bar and phi indicates that our data is mostly dominated by upward propagating waves with occasional high values >= 100 km, implying possible evanescent waves.
机译：2002年7月，夏威夷毛伊岛的中层OH（6，2）和02（0，1）波段发射的中层温度映射器（MTM）测量显示出每天的显着变化。夜间变化显示出显着的波浪特征，周期为6至13 h。为了更好地表征数据中的夜行波，进行了Krassovsky的eta（类似于垂直线eta垂直线e（i theta））分析。推导的Krassovsky参数显示出显着的可变性，OH数据的竖线eta竖线的范围类似于1.7-3.9，而O-2数据的竖线eta-竖线的范围类似于4.3-13。 Krassovsky参数的相位值表现出较大的可变性，OH数据的范围从大约-91度到+23度，O-2数据的范围从-45度到-10度。这些值与现有观测值和模型的比较表明与模型值存在较大偏差，并且与其他研究者报告的观测值相对较好。从竖线eta竖线和phi推导出的竖向波长表明，我们的数据主要由向上传播的波控制，偶尔高值> = 100 km，这意味着可能存在e逝波。

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