Mobile multi-wavelength aerosol lidar

An important factor of the ecological and safety provision is real-time detection, identification, and localization of different types of hazardous aerosol and gas emissions. The remote laser detection techniques are promising for the solution of these problems. In this work, we present the optical...

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Bibliographic Details
Published inInternational journal of remote sensing Vol. 39; no. 24; pp. 9400 - 9414
Main Authors Gritsuta, A. N., Klimkin, A. V., Kokhanenko, G. P., Kuryak, A. N., Osipov, K. Yu, Ponomarev, Yu. N., Simonova, G. V.
Format Journal Article
LanguageEnglish
Published London Taylor & Francis 17.12.2018
Taylor & Francis Ltd
Subjects
Aerosols
Air pollution
Backscattering
Detection
Elastic scattering
Excitation
Excitation spectra
Fluorescence
Gases
Lasers
Lidar
Optical design
Pollutants
Radiation
Raman scattering
Raman spectra
Recording
Software
Spectral resolution
Tracking
Twilight glow
Wavelength
Workstations
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Summary:An important factor of the ecological and safety provision is real-time detection, identification, and localization of different types of hazardous aerosol and gas emissions. The remote laser detection techniques are promising for the solution of these problems. In this work, we present the optical design, hardware, and software of a mobile multi-wavelength aerosol lidar. The lidar is intended for detecting aerosol formations, tracing their movements, and recording fluorescent spectra during laser excitation. The fundamental laser harmonic (1064 nm) is used for detection and tracking an object, while the third and fourth harmonics, for excitation of fluorescence in polluting substances. The receiving system records fluorescence backscattered radiation within the spectral range 280-580 nm with a spectral resolution of no worse than 1-10 nm. The sounding range is 30 000 m in the elastic scattering channel and 4 000 m in the fluorescence channel. The recording of the Raman scattering signals (atmospheric nitrogen, polluting gases) is possible at night and twilight. The lidar (lift and rotation of the scanner, control of the distance to the object, change of filters, etc.) is controlled from the operators' workstation. The lidar software is implemented in LabVIEW 2015 environment. The lidar has been pretested; the test results are given in this paper.
ISSN:0143-1161
1366-5901
DOI:10.1080/01431161.2018.1524609