Remote sensing of the middle and upper atmosphere from satellite platforms

拟议的研究工作的重点是检索有关大气层状况的信息。特别是，我们开发了以前所未有的空间分辨率测量臭氧全球分布的技术。我们通过分析卫星平台上的光学测量结果来做到这一点。这项工作有两个同样重要的方面。首先，必须开发工具，在掌握准确知识的情况下，准确计算辐射在大气中的传输。其次，必须开发算法来提取最符合观测光学信号的大气剖面。这些反演算法调整大气状态，直到模拟信号和测量信号之间有很好的一致性。我们小组目前专注于分析来自加拿大制造的OSIRIS仪器的数据。OSIRIS的主要目标是为与高纬度臭氧消耗相关的化学和光化学研究提供测量结果。该项目中提议的工作将极大地提高OSIRIS和加拿大航天局未来旨在增进我们对大气过程的了解的飞行任务的科学回报。我们打算开发一套世界级的辐射传输模型和检索技术，将加拿大置于具有竞争力的全球努力的前沿。

The proposed research work is focused on the retrieval of information about the state of the atmosphere. In particular, we develop techniques to measure the global distribution of ozone at unprecedented spatial resolution. We do this through analysis of optical measurements from satellite platforms. There are two equally important aspects to this work. Firstly, tools must be developed to accurately calculate the transmission of radiation through the atmosphere given exact knowledge. Secondly, algorithms must be developed to extract atmospheric profiles that best fit the observed optical signal. These retrieval algorithms adjust the state of the atmosphere until there is good agreement between the simulated and measured signals. Our group is currently focused on the analysis of data from the Canadian built OSIRIS instrument. The primary objective of OSIRIS is to produce measurements for the study of chemistry and photochemistry associated with high latitude ozone depletion. The work proposed in this project will greatly enhance the scientific return from OSIRIS and future Canadian Space Agency missions designed to further our knowledge of atmospheric processes. It is our intention to develop a world class suite of radiative transfer models and retrieval techniques to place Canada at the forefront of a competitive worldwide endeavour.