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首页> 外文期刊>Annales Geophysicae >Spectral Wave Analysis At The Mesopause From Sciamachy Airglow Data Compared To Saber Temperature Spectra
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Spectral Wave Analysis At The Mesopause From Sciamachy Airglow Data Compared To Saber Temperature Spectra

机译：夏马赫气辉数据与军刀温度光谱比较中绝经期的波分析

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Space-time spectral analysis of satellite data is an important method to derive a synoptic picture of the atmosphere from measurements sampled asynoptically by satellite instruments. In addition, it serves as a powerful tool to identify and separate different wave modes in the atmospheric data. In our work we present space-time spectral analyses of chemical heating rates derived from Scanning Imaging Absorption SpectroMeter for Atmospheric CHartographY (SCIAMACHY) hydroxyl nightglow emission measurements onboard Envisat for the years 2002-2006 at mesopause heights. Since SCIAMACHY nightglow hydroxyl emission measurements are restricted to the ascending (nighttime) part of the satellite orbit, our analysis also includes temperature spectra derived from 15 μm CO_2 emissions measured by the Sounding of the Atmosphere using Broadband Emission Ra-diometry (SABER) instrument. SABER offers better temporal and spatial coverage (daytime and night-time values of temperature) and a more regular sampling grid. Therefore SABER spectra also contain information about higher frequency waves. Comparison of SCIAMACHY and SABER results shows that SCIAMACHY, in spite of its observational restrictions, provides valuable information on most of the wave modes present in the mesopause region. The main differences between wave spectra obtained from these sensors can be attributed to the differences in their sampling patterns.
机译：卫星数据的时空频谱分析是一种重要的方法，它可以通过卫星仪器非常规采样的测量结果得出大气的天气概况。此外，它还可以作为强大的工具来识别和分离大气数据中的不同波动模式。在我们的工作中，我们介绍了2002年至2006年在中绝经高度从Envisat上进行的大气制图扫描成像吸收光谱仪（SCIAMACHY）羟基夜光发射测量得出的化学加热速率的时空光谱分析。由于SCIAMACHY的夜光羟基发射量测量仅限于卫星轨道的上升部分（夜间），因此我们的分析还包括由15μmCO_2排放量得出的温度谱图，该CO_2排放量是通过大气探测法使用宽带发射辐射比（SABER）仪器测量的。 SABRE提供更好的时间和空间覆盖范围（白天和晚上的温度值）和更规则的采样网格。因此，SABRE频谱还包含有关高频波的信息。 SCIAMACHY和SABRE结果的比较表明，尽管有观测限制，SCIAMACHY仍能提供有关绝经区存在的大多数波模的有价值的信息。从这些传感器获得的波谱之间的主要差异可以归因于其采样模式的差异。

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