Errors analysis of dioxide carbon concentrations measurement by airborne lidar
| Autor: | 刘继桥 Liu Jiqiao, 李世光 Li Shiguang, 陈卫标 Chen Weibiao, 刘 丹 Liu Dan, 史成龙 Shi Chenglong, 毕德仓 Bi Decang |
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| Rok vydání: | 2016 |
| Předmět: |
Aerospace Engineering
chemistry.chemical_element Atmospheric temperature Atomic and Molecular Physics and Optics Atmosphere Lidar chemistry Space and Planetary Science Random error Differential absorption lidar Environmental science Electrical and Electronic Engineering Laser frequency Carbon Water vapor Remote sensing |
| Zdroj: | Infrared and Laser Engineering. 45:0530001 |
| ISSN: | 1007-2276 |
| DOI: | 10.3788/irla201645.0530001 |
| Popis: | Differential absorption lidar is an effective methods for high -precision CO_2 concentration measurements. In this paper, the major error sources of airborne differential absorption lidar CO_2 measurement were studied, and CO_2 concentration errors caused by them were analyzed. The airborne differential absorption lidar principle was introduced first, CO_2 concentration errors from atmospheric temperature, pressure and water vapor uncertainties, laser frequency stability and the aircraft speed and attitude measurements uncertainties, as well as random error were analyzed. The results show that airborne differential absorption lidar measured CO_2 column concentration error is about 0.71 ppm (1 ppm=10~(-6)) for 380 ppm atmosphere CO_2 concentration, which meets the 1 ppm accuracy requirement of CO_2 concentration measurement. |
| Databáze: | OpenAIRE |
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