气候变化领域集成服务门户(CCPortal): Analyzing the turbulent planetary boundary layer by remote sensing systems: The Doppler wind lidar; aerosol elastic lidar and microwave radiometer

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DOI	10.5194/acp-19-1263-2019
	Analyzing the turbulent planetary boundary layer by remote sensing systems: The Doppler wind lidar; aerosol elastic lidar and microwave radiometer
	De Arruda Moreira G.; Guerrero-Rascado J.L.; Benavent-Oltra J.A.; Ortiz-Amezcua P.; Román R.; Bedoya-Velásquez A.E.; Bravo-Aranda J.A.; Reyes F.J.O.; Landulfo E.; Alados-Arboledas L.
发表日期	2019
ISSN	16807316
起始页码	1263
结束页码	1280
卷号	19 期号:2
英文摘要	The planetary boundary layer (PBL) is the lowermost region of troposphere and is endowed with turbulent characteristics, which can have mechanical and/or thermodynamic origins. This behavior gives this layer great importance, mainly in studies about pollutant dispersion and weather forecasting. However, the instruments usually applied in studies of turbulence in the PBL have limitations in spatial resolution (anemometer towers) or temporal resolution (instrumentation aboard an aircraft). Ground-based remote sensing, both active and passive, offers an alternative for studying the PBL. In this study we show the capabilities of combining different remote sensing systems (microwave radiometer-MWR, Doppler lidar-DL-and elastic lidar-EL) for retrieving a detailed picture on the PBL turbulent features. The statistical moments of the high frequency distributions of the vertical wind velocity, derived from DL, and of the backscattered coefficient, derived from EL, are corrected by two methodologies, namely first lag correction and -2=3 law correction. The corrected profiles, obtained from DL data, present small differences when compared with the uncorrected profiles, showing the low influence of noise and the viability of the proposed methodology. Concerning EL, in addition to analyzing the influence of noise, we explore the use of different wavelengths that usually include EL systems operated in extended networks, like the European Aerosol Research Lidar Network (EARLINET), Latin American Lidar Network (LALINET), NASA Micro-Pulse Lidar Network (MPLNET) or Skyradiometer Network (SKYNET). In this way we want to show the feasibility of extending the capability of existing monitoring networks without strong investments or changes in their measurements protocols. Two case studies were analyzed in detail, one corresponding to a well-defined PBL and another corresponding to a situation with presence of a Saharan dust lofted aerosol layer and clouds. In both cases we discuss results provided by the different instruments showing their complementarity and the precautions to be applied in the data interpretation. Our study shows that the use of EL at 532 nm requires a careful correction of the signal using the first lag time correction in order to get reliable turbulence information on the PBL. © Author(s) 2019.
语种	英语
scopus关键词	Doppler lidar; error correction; ground-based measurement; instrumentation; microwave radiometer; remote sensing; spatial resolution; troposphere; turbulence; turbulent boundary layer; wind field
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144681
作者单位	Andalusian Institute for Earth System Research (IISTA-CEAMA), Granada, Spain; Department of Applied Physics, University of Granada, Granada, Spain; Institute of Research and Nuclear Energy (IPEN), São Paulo, Brazil; Grupo de Óptica Atmosférica (GOA), Universidad de Valladolid, Valladolid, Spain; Sciences Faculty, Department of Physics, Universidad Nacional de Colombia, Medellín, Colombia
推荐引用方式 GB/T 7714	De Arruda Moreira G.,Guerrero-Rascado J.L.,Benavent-Oltra J.A.,et al. Analyzing the turbulent planetary boundary layer by remote sensing systems: The Doppler wind lidar; aerosol elastic lidar and microwave radiometer[J],2019,19(2).
APA	De Arruda Moreira G..,Guerrero-Rascado J.L..,Benavent-Oltra J.A..,Ortiz-Amezcua P..,Román R..,...&Alados-Arboledas L..(2019).Analyzing the turbulent planetary boundary layer by remote sensing systems: The Doppler wind lidar; aerosol elastic lidar and microwave radiometer.Atmospheric Chemistry and Physics,19(2).
MLA	De Arruda Moreira G.,et al."Analyzing the turbulent planetary boundary layer by remote sensing systems: The Doppler wind lidar; aerosol elastic lidar and microwave radiometer".Atmospheric Chemistry and Physics 19.2(2019).