Ecological Systems and Devices Annotation << Back HIGH-ENERGY COSMIC LIDAR BASED ON QUASI-CONTINUOUS RADIATION SOURCE FOR MONITORING TASKS ATMOSPHERIC METHANE G.A. Akimova, V.I. Grigorevsky, V.V. Mataybaev, V.P. Sadovnikov, Yu.P. Syrykh, Ya.A. Tezadov, A.V. Fedenev, V.V. Khabarov Methods of increasing the capacity of quasi-continuous lidar of methane in Earth’s atmosphere are developed. Theoretically and experimentally shown that with the use of optimized signal processing, parallel operation of the Raman amplifi ers in a quasi-continuous mode, one can record the methane concentration close to the background on long distances up to low satellite orbits. A layout of analyzer based on photodetector with avalanche photodiode allows for remote measurements of methane concentration at distances up to 3 km for the beam refl ected from natural and construction objects. It is also possible to search methane leaks and monitor the background concentration of the gas. Keywords: Laser gas analyzer; wavelength; concentration; methane; photodetector; optical amplifi er. Contacts: E-mail: vig248@ire216.msk.su Pp. 08-14.