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The current level of technical development has led to increased number of anthropogenic hazards including emissions from industrial and agricultural enterprises, terrorist threats using chemical and organic components etc. An important factor in ensuring safety is the timely detection, identification, and localization of sources of danger. In this regard, remote methods, including laser ones, become more and more important allowing detecting and identifying danger in real time and at a distance from its source. The paper presents a calculation of the laser radiation absorption by water vapor for the wavelengths of CO2-laser generation lines. It is shown that absorption caused by H2O, C2H4 and NH3 at some laser generation lines can significantly affects the results of remote detection of organic components depending on the concentration of these gases in the atmosphere. These results can be useful for specialists that develop instruments and methods for remote detection of organic compounds in the atmosphere.

Lidar, as an important tool for studying atmospheric aerosol, is widely used in studying the distribution of atmospheric aerosol pollution. In environmental monitoring, especially when using mobile lidar for measurements, it's important to know not only situations of the pollution, but also the coordinates of their sources, and their dynamics distribution . The article introduces a method for calculating the coordinates of the objects locations according to the coordinates of the lidar, the detection direction and the distance between the lidar to the objects. Finally, the programming implementation of the method and its application in the development of auxiliary lidar systems.

В работе представлен расчёт поглощения лазерного излучения парами воды для длин волн линий генерации CO2-лазера. Показано, что отличия в коэффициентах поглощения для различных линий генерации лазера могут существенно влиять на результаты измерений в зависимости от концентрации паров воды в атмосфере.