Investigation of the mesopheric OH-Layer via FT spectroscopy and mesospheric models, OHTEMP II

中间层作为连接空间和大气的纽带，给大气研究提出了许多悬而未决的问题。它的动力学和化学通过极地冬季的向下输送影响极帽上方的平流层。在提议的工作中，将研究斯匹次卑尔根岛（79◦N）上方的中间层OH层。FTS的高光谱分辨率测量和LIDAR的高海拔分辨率测量将结合起来更新和验证去激励模型。这被嵌入到一个中间层二维模型中，该模型将被增强，并将用于模拟中间层区域的OH层，这是臭氧催化破坏链的一部分。对中间层动力学和化学的影响将被研究。FT光谱仪的带宽和分辨率优于其他用于测量OH发射的光谱仪。激光雷达提供了OH分布的非常好的高度分辨率。测量和模型的结合将为中流层提供新的见解，特别是北极地区上方的动力学。

The mesosphere as the link between space and atmosphere poses still many open questions to atmospheric research. Its dynamics and chemistry influence the stratosphere above the polar caps via down transport in the polar winter. In the proposed work the mesospheric OH layer above Spitsbergen (79◦N) will be studied. High spectral resolution measurements by FTS and high altitude resolution measurements by LIDAR will be combined to update and validate a deexcitation model. This is embedded into a mesospheric 2-D-model which will be enhanced and will be used to model the OH layer in the mesopause region, which is part of catalytic destruction chain for ozone. The consequences for mesospheric dynamics and chemistry will be investigated. The bandwidth and the resolution of the FT spectrometer is superior to other spectrometers used to measure OH emissions. The LIDAR provides a very good altitude resolution of the OH distribution. The combination of both measurements and the model will provide new insight into the mesopause region, especially its dynamics above the arctic region.