Retrieval of Atmospheric State variables from GLORIA limb emission spectral images (RASGLO)

该项目的目的是利用TACTS、POLSTRACC和CIRRUS-RS测量活动期间的GLORIA遥感数据，分析控制对流层上层/平流层最下层交换的过程。GLORIA是一种基于成像FTIR光谱仪技术的大气辐射成像的环架翼面观测仪，安装在HALO飞机的腹部吊舱中。特殊的仪器模式允许对中尺度事件进行全三维层析测量，具有前所未有的空间分辨率和各种大气成分的推导。在该项目的第一个资助期内，研究人员开发了层析测量分析的方法和算法，以及更先进的云检测方案。在项目的第二部分（按此处要求），将完成温度、水汽、CFC-11、PAN、臭氧、SF6、HDO等几个物种的检索准备工作，包括对检索不确定性的详细分析。这些物种的二维和三维场将从TACTS、POLSTRACC和CIRRUS-RS活动期间获得的真实GLORIA测量数据中获得，然后对检索性能和产品进行详细的质量分析。之后，将对这些数据进行有关对流层上层和平流层最下层的混合事件和冷凝过程的科学分析。

The aim of this project is to analyze processes controlling upper troposphere / lowermost stratosphere exchange by means of GLORIA remote sensing data during the TACTS, POLSTRACC and CIRRUS-RS measurement campaigns. GLORIA is a gimballed limb observer for radiance imaging of the atmosphere based on imaging FTIR spectrometer technology, mounted in the belly pod of the HALO aircraft. Special instrument modes allow for tomographic measurements of mesoscale events in full 3-D with unprecedented spatial resolution and the derivation of a wide variety of atmospheric constituents. In the first funding period of this project, methods and algorithms for the analysis of tomographic measurements as well as more advanced cloud detection schemes were developed. In the second part of the project (as requested here), preparatory work for the retrieval of temperature, water vapor, CFC-11, PAN, ozone, SF6, HDO, and several other species will be completed, including a detailed analysis of retrieval uncertainties. 2-D and 3-D fields of these species will be derived from real GLORIA measurements obtained during the TACTS, POLSTRACC, and CIRRUS-RS campaigns, followed by detailed quality analysis of the retrieval performance and the products. After that, scientific analyses of this data with respect to mixing events and condensational processes in the upper troposphere and lowermost stratosphere will be performed.