Mobile mid-infrared differential absorption lidar for methane monitoring in the atmosphere: Calibration and first in situ tests

被引：5

作者：

Yakovlev, S. V. ^{[1
]}

Romanovskii, O. A. ^{[1
]}

Sadovnikov, S. A. ^{[1
]}

Tuzhilkin, D. A. ^{[1
]}

Nevzorov, A. A. ^{[1
]}

Kharchenko, O. V. ^{[1
]}

Kravtsova, N. S. ^{[1
]}

Zuev, V. E. ^{[1
]}

机构：

[1] Russian Acad Sci, VE Zuev Inst Atmospher Opt, Siberian Branch, Acad Zuev Sq 1, Tomsk 634055, Russia

来源：

RESULTS IN OPTICS | 2022年 / 8卷

基金：

俄罗斯基础研究基金会;

关键词：

Lidar; Infrared region; Differential absorption; Atmosphere; Methane; SYSTEM; CO2; PERFORMANCE; H2O; NM;

D O I：

10.1016/j.rio.2022.100233

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A mobile infrared (IR) differential absorption lidar designed for the study of methane in the atmosphere is described. A mobile IR radiation source for the differential absorption lidar was calibrated in the informative range for methane sounding near -3400 nm. Informative methane sounding wavelengths for mid-latitude summer conditions are 3428.428 nm (on-line) and 3431.708 nm (off-line), respectively. The maximum output energy in a pulse of the mobile lidar is 4.3 mJ (for on-line wavelength) and 2.5 mJ (for off-line wavelength). The lidar was in situ tested in recording the atmospheric response at calibrated sounding wavelengths and in retrieving background methane concentrations of -2.0 ppm along surface atmospheric sounding paths. The test results at the Basic Experimental Complex and the Fonovaya Observatory of IAO SB RAS are presented.

引用

页数：8

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