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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >OH layer characteristics during unusual boreal winters of 2004 and 2006
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OH layer characteristics during unusual boreal winters of 2004 and 2006

机译:哦层特征在不同寻常的北方2004年和2006年的冬天

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摘要

We report observations of unusual mesospheric OH airglow made by the SABER instrument on the TIMED satellite. During portions of the boreal winters of 2004 and 2006, and over much of the region poleward of 60°N, the OH layer was ~5–8 km lower than normal and twice as bright. Using retrieved volume emission rates (VERs) in two SABER channels, we document the characteristics, spatial extent, and temporal variability of the anomalous behavior. We show that it is correlated with unusual mesospheric and upper stratospheric temperature patterns that have been reported, and other observations. The unusual layer properties are likely produced by enhanced downward transport of atomic oxygen, a circumstance consistent with the planetary wave dynamics thought to be responsible for the other changes. These observations raise the possibility of using easily observed OH airglow as a proxy for perturbed meteorological conditions.
机译:我们报告的观察不寻常的中间层哦大气光剑的计时仪器卫星。2004年和2006年,在大部分地区向极60°N,哦层低~ 5 - 8公里比正常的和明亮的两倍。在两剑卷发射率(更小)渠道,我们文档的特点,的空间范围和时间变化反常的行为。不寻常的中间层和平流层上层已报告的温度模式,其他观察结果。有可能产生的增强下行吗原子氧的运输情况与行星波动态一致负责其他变化。这些观察提高使用的可能性很容易观察到的哦,大气光作为一个代理摄动的气象条件。

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