Temperature and aerosol soundings in the middle atmosphere at different mid and high-latitude lidar stations during day and night
Temperature and aerosol soundings in the middle atmosphere at different mid and high-latitude lidar stations during day and night
复制标题
中高纬度不同激光雷达站昼夜中层大气温度和气溶胶探测
DOI：
10.1117/12.830363
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
und F.-J. Lübken
中科院分区：
文献类型：
--
作者：
Gerding;G. Baumgarten;J. Höffner;J. Fiedler;R. Eixmann;und F.-J. Lübken
激光雷达提供了一种重要的工具来测量高达~110 km高度的大气中的温度和次要成分，具有高精度和时间分辨率。莱布尼茨大气物理研究所在对流层和低层热层之间的整个范围内使用各种激光雷达。激光雷达安装在德国k<s:1> hlunsborn(54°N, 12°E)，挪威ALOMAR(69°N, 16°E)，或者在一个20英尺的移动集装箱中。极地地区的夏季探测以及潮汐和重力波的覆盖范围需要在白天进行测量。使用标准激光雷达，日光背景比中间层中的信号大几个数量级。实现了标准子窄带光谱滤波和小视场（~50 μrad）空间滤波。在这种低视场湍流和波束指向的抖动影响信号，必须进行补偿。我们将介绍激光雷达应用的技术。此外，我们将讨论标准子滤波技术对计算温度分布的影响。多普勒加宽后向散射信号的标准子传输与温度有关，必须加以考虑以避免系统误差。总的来说，窄带激光雷达提供整个范围内直至低层热层的温度分布。我们将介绍低层和中层大气以及夜光云（NLC）的温度分布观测。这些量提供了对中层大气动力学的重要见解。将显示不同地点观测的时间分辨和平均剖面，并比较不同纬度的结果。
Lidars provide an important tool to measure temperature and minor constituents in the atmosphere up to ~110 km altitude with high accuracy and temporal resolution. The Leibniz-Institute of Atmospheric Physics operates various lidars for the whole range between troposphere and lower thermosphere. The lidars are installed at Kühlungsborn, Germany (54°N, 12°E), at the ALOMAR site, Norway (69°N, 16°E), or in a mobile 20-foot container. Summertime soundings in polar regions as well as coverage of tides and gravity waves require measurements during full daylight. With a standard lidar the daylight background is several magnitudes larger than the signal in the mesosphere. Narrowband spectral filtering by etalons as well as spatial filtering by small fields of view (~50 μrad) are realized instead. At this low FOV turbulence and jitter of the beam pointing affects the signal and have to be compensated. We describe the techniques applied at our lidars. Additionally we will discuss the influence of the etalon filter technique on calculated temperature profiles. The etalon transmission of the Doppler-broadened backscatter signal is temperature dependent and has to be taken into account to avoid systematic errors. Overall, narrow-band lidars provide temperature profiles in the whole range up to the lower thermosphere. We will present observations of temperatures profiles of the lower and middle atmosphere as well as noctilucent clouds (NLC). These quantities provide important insights into the dynamics of the middle atmosphere. Time-resolved and averaged profiles of observations at the different locations will be shown and the results from different latitudes compared.
北极异常中平流层气溶胶层的观测：极涡动力学的可能来源和影响
影响因子：
1.9
作者：
M. Gerding;G. Baumgarten;U. Blum;J. Thayer;K. Fricke;R. Neuber;J. Fiedler
通讯作者：
J. Fiedler
激光雷达观测到的 54°N 海拔 1 至 105 公里之间温度的季节变化
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
M. Gerding;J. Lautenbach;M. Rauthe;F. Lübken
通讯作者：
F. Lübken
NLC 在 ALOMAR 上空一个太阳周期期间的观测
DOI：
10.1016/j.jastp.2008.11.010
发表时间：
2009
影响因子：
1.9
作者：
J. Fiedler;G. Baumgarten;F. Lübken
通讯作者：
F. Lübken