Известия Томского политехнического университета: Инжиниринг георесурсов (May 2019)
Lidar sensing of ozone in the upper troposphere - lower stratosphere: technique and results of measurements
Abstract
Prediction of atmospheric ozone layer, which is the valuable and irreplaceable geo asset, is currently the important scientific and engineering problem. The relevance of the research is caused by the necessity to develop laser remote methods for sensing ozone to solve the problems of controlling the environment and climatology. The main aim of the research is to develop the technique for laser remote ozone sensing in the upper troposphere - lower stratosphere by differential absorption method for temperature and aerosol correction and analysis of measurement results. Research methods: the method of differential absorption based on the effect of resonant absorption of laser radiation within a selective absorption lines of the investigated gas components. Results. The paper introduces the technique of recovering profiles of ozone vertical distribution considering temperature and aerosol correction in atmosphere lidar sounding by differential absorption method. The authors have determined wavelengths, promising to measure ozone profiles in the upper troposphere - lower stratosphere. To obtain promptly the results of the methodology the authors developed the software based on the method of differential absorption with user-friendly interface in the programming language C# for the Windows 7 operating system using the lidar measurements. The software allows calculating the recovery profiles of the vertical ozone distribution based on aerosol and temperature correction. The recovered ozone profiles, resulting from the program operation, were compared with IASI satellite data and Kruger model. The results of applying the developed technique to recover the profiles of ozone vertical distribution considering temperature and aerosol correction in the altitude range of 6-18 km in lidar atmosphere sounding by differential absorption method confirm the prospects of using the selected wavelengths of ozone sensing 341 and 299 nm in the ozone lidar.
