DOI: 10.1016/j.atmosenv.2018.01.054
Scopus记录号: 2-s2.0-85041469984
论文题名: Determination of boundary layer top on the basis of the characteristics of atmospheric particles
作者: Liu B ; , Ma Y ; , Gong W ; , Zhang M ; , Yang J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 178 起始页码: 140
结束页码: 147
语种: 英语
英文关键词: Aerosol detection
; Colour ratio
; Lidar
; Planetary boundary layer
Scopus关键词: Aerosols
; Atmospheric thermodynamics
; Boundary layers
; Data handling
; Earth atmosphere
; Optical radar
; Aerosol concentration
; Aerosol detection
; Atmospheric particles
; Correlation coefficient
; Particle characteristics
; Planetary boundary layers
; Radiosonde measurements
; Vertical distributions
; Atmospheric boundary layer
; aerosol
; algorithm
; Article
; astronomy
; boundary layer
; comparative study
; controlled study
; filtration
; particle size
; particulate matter
; priority journal
; remote sensing
; thermodynamics
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The planetary boundary layer (PBL) is the lowest layer of the atmosphere that can be directly influenced with the Earth's surface. This layer can also respond to surface forcing. The determination of the PBL is significant to environmental and climate research. PBL can also serve as an input parameter for further data processing with atmospheric models. Traditional detection algorithms are susceptible to errors associated with the vertical distribution of aerosol concentrations. To overcome this limitation, a maximum difference search (MDS) algorithm was proposed to calculate the top of the boundary layer based on differences in particle characteristics. The top positions of the PBL from MDS algorithm under different convection states were compared with those from conventional methods. Experimental results demonstrated that the MDS method can determine the top of the boundary layer precisely. The proposed algorithm can also be used to calculate the top of the PBL accurately under weak convection conditions where the traditional methods cannot be applied. Finally, experimental data from June 2015 to December 2015 were analysed to verify the reliability of the MDS algorithm. The correlation coefficients R2 (RMSE) between the results of MDS algorithm and radiosonde measurements were 0.53 (115 m), 0.79 (141 m) and 0.96 (43 m) under weak, moderate and strong convections, respectively. These findings indicated that the proposed method possessed a good feasibility and stability. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82981
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University, Wuhan, China; International Research Center of Satellite Remote Sensing and Atmospheric Monitoring, Wuhan University, Wuhan, China
Recommended Citation:
Liu B,, Ma Y,, Gong W,et al. Determination of boundary layer top on the basis of the characteristics of atmospheric particles[J]. Atmospheric Environment,2018-01-01,178