Experimental & Theoretical Investigation of Stratospheric Ozone, Ozone Related Trace Gas Abundances

该项目的主要目标是测量北极地面的紫外线和可见光辐射，并利用这些数据推断大气臭氧和臭氧化学中重要的其他痕量气体的柱丰度。这将通过测量哈金斯波段中波长对的强度比来确定柱臭氧含量，并通过可见光吸收光谱来得出NO2和NO3的柱丰度来实现。由于OClO的丰度很小，测量OClO的难度要大得多，但可以尝试推断其柱丰度。然而，重点将放在发展能力和论证在北极测量NO2、O3和NO3柱丰度的可行性上。因此，研究项目的主要工作将集中在开发实验技术和获得可靠的痕量气体测量所需的经验，以及开发分析测量所必需的理论建模工具。

The principal objective of this project is to measure UV and visible radiation at the ground in the Arctic and utilize these data to infer column abundances of atmospheric ozone and other trace gases important in the ozone chemistry. This will be accomplished by measuring intensity ratios for wavelength pairs in the Huggins band to determine column ozone content, and visible absorption spectroscopy to derive column abundances of NO2, NO3. Measuring OClO is far more difficult because of its small abundance, but inference of its column abundance may be attempted. However, the emphasis will be on developing the capability and demonstrating the feasibility of measuring NO2, O3 and NO3 column abundances in the Arctic. Thus, the main effort of the research project will be focused on developing the experimental techniques and acquiring the experience required for reliable trace gas measurements as well as on developing the theoretical modeling tools essential for the analysis of the measurements.