气候变化领域集成服务门户(CCPortal): A comprehensive evaluation of planetary boundary layer height retrieval techniques using lidar data under different pollution scenarios

CCPortal

DOI	10.1016/j.atmosres.2021.105483
	A comprehensive evaluation of planetary boundary layer height retrieval techniques using lidar data under different pollution scenarios
	Wang F.; Yang T.; Wang Z.; Chen X.; Wang H.; Guo J.
发表日期	2021
ISSN	0169-8095
卷号	253
英文摘要	Lidar is a powerful active remote sensing technique to monitor the planetary boundary layer (PBL), and there have already been many algorithms to retrieve the planetary boundary layer height (PBLH) using aerosol lidars. However, the algorithm suitable for all atmospheric conditions doesn't exist. This study evaluates the capability of nine lidar algorithms under different pollution scenarios in terms of the instantaneous performance and the diurnal evolution, which are derived from classical theories and expressed as GM, LGM, CRGM, IPM, VAR, VGM, WCT, WCTD, and POLARIS in this paper. Based on the nine algorithms, the continuous PBLHs are obtained from the observation dataset of a Beijing urban site in 2017. In order to verify the lidar results, the statical comparison analysis with radiosonde is also presented. On the premise of the inversion hypothesis, such as sufficient mixing in the PBL, the consistency of lidar results was the best, with the difference being not more than 200 m. And what's different from our cognition is that the concentration of pollutants near the ground under the light pollution condition makes the lidar results tend to be consistent. In fact, LGM prefers to get higher PBLHs because of filtering the information near the ground, whereas POLARIS is apt to underestimate unless the actual morphology can be captured by the depolarization ratio. VAR and IPM are more vulnerable to the conspicuous stratification. GM, CRGM, and WCTD have better consistency with radiosonde and capture the evolution characteristic no matter in clean or polluted days. Compared with the clean days, PBLH from lidar algorithms under the polluted condition reduced about 500 m overall, as well as the standard deviation. Generally speaking, the comprehensive comparison provides a reference to choose the proper lidar algorithm when retrieving the PBLH. GM is appropriate for the detection of clean days, while CRGM is robust for polluted days. WCTD is more suitable for the judgment of PBLH in the morning and evening and will underestimate at noon. As to the situation with cloud, WCTD is also the best choice. © 2021 Elsevier B.V.
英文关键词	Comparison; Diurnal evolution; Lidar algorithms; Planetary Boundary layer height
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236842
作者单位	State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; University of Chinese Academy of Sciences, Beijing, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China
推荐引用方式 GB/T 7714	Wang F.,Yang T.,Wang Z.,et al. A comprehensive evaluation of planetary boundary layer height retrieval techniques using lidar data under different pollution scenarios[J],2021,253.
APA	Wang F.,Yang T.,Wang Z.,Chen X.,Wang H.,&Guo J..(2021).A comprehensive evaluation of planetary boundary layer height retrieval techniques using lidar data under different pollution scenarios.Atmospheric Research,253.
MLA	Wang F.,et al."A comprehensive evaluation of planetary boundary layer height retrieval techniques using lidar data under different pollution scenarios".Atmospheric Research 253(2021).