DOI: 10.1016/j.atmosenv.2019.117097
论文题名: Measurement of CO2 rectifier effect during summer and winter using ground-based differential absorption LiDAR
作者: Shi T. ; Ma X. ; Han G. ; Xu H. ; Qiu R. ; He B. ; Gong W.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 220 语种: 英语
英文关键词: Boundary layer flow
; Boundary layers
; Optical radar
; Rectifying circuits
; Boundary layer heights
; CO2 profile
; Differential absorption lidars
; Negative correlation
; Planetary boundary layers
; Profile concentration
; Rectifier effect
; Vertical distributions
; Carbon dioxide
; carbon dioxide
; glass fiber
; boundary layer
; carbon dioxide
; carbon sequestration
; concentration (composition)
; experimental study
; gas exchange
; ground-based measurement
; lidar
; measurement method
; summer
; vertical distribution
; winter
; absorption
; altitude
; Article
; boundary layer
; China
; controlled study
; information processing
; priority journal
; summer
; temperature
; winter
; Anhui
; China
; Huainan
学科: Boundary layer height
; CO2 profile
; Differential absorption lidar
; Rectifier effect
中文摘要: The rectifier effect refers to the exchange of CO2 near the boundary layer of the atmosphere. This effect is an important part of the carbon cycle because it affects the vertical distribution of CO2 and indirectly affects global CO2 distribution. However, the intensity of this effect is difficult to measure directly. A differential absorption LiDAR (DIAL) system can observe the rectifier effect because this device can accurately measure planetary boundary layer height (PBLH) and CO2 profile concentration (Quan et al., 2014; Guo et al., 2016). Accordingly, we conducted experiments in Huainan, China using a DIAL system for CO2 detection developed by our group. We selected two cases, namely, summer and winter, for the analysis. Firstly, we calculated CO2 profile, average CO2 concentration and PBLH. Secondly, we analysed the rectifier effect. Results showed a negative correlation between PBLH and the rectifier effect. Simultaneously, we observed a special phenomenon in which CO2 concentration is lower near the ground than in high altitudes. This phenomenon may be explained by the activities of plants. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161115
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, 129 Luoyu Road4730079, China; CAS Key Laboratory of Spectral Imaging Technology, Xi'an, 710119, China; School of Remote Sensing and Information Engineering, Wuhan University, 129 Luoyu Road4730079, China
Recommended Citation:
Shi T.,Ma X.,Han G.,et al. Measurement of CO2 rectifier effect during summer and winter using ground-based differential absorption LiDAR[J]. Atmospheric Environment,2020-01-01,220