Development of a Pulsed 2-Micron Integrated Path Differential Absorption Lidar for CO2 Measurement

[摘要] Atmospheric carbon dioxide (CO2) is an important greenhouse gas that significantly contributes to the carbon cycle andglobal radiation budget on Earth. Active remote sensing of CO2 is important to address several limitations that contendwith passive sensors. A 2-micron double-pulsed, Integrated Path Differential Absorption (IPDA) lidar instrument forground and airborne atmospheric CO2 concentration measurements via direct detection method is being developed atNASA Langley Research Center. This active remote sensing instrument will provide an alternate approach of measuringatmospheric CO2 concentrations with significant advantages. A high energy pulsed approach provides high-precisionmeasurement capability by having high signal-to-noise ratio level and unambiguously eliminates the contamination fromaerosols and clouds that can bias the IPDA measurement. Commercial, on the shelf, components are implemented for thedetection system. Instrument integration will be presented in this paper as well as a background for CO2 measurement atNASA Langley research Center

[发布日期] 2013-08-26

[学科分类] 工程和技术（综合）