气候变化领域集成服务门户(CCPortal): The dual-field-of-view polarization lidar technique: A new concept in monitoring aerosol effects in liquid-water clouds

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DOI	10.5194/acp-20-15247-2020
	The dual-field-of-view polarization lidar technique: A new concept in monitoring aerosol effects in liquid-water clouds - Theoretical framework
	Jimenez C.; Ansmann A.; Engelmann R.; Donovan D.; Malinka A.; Schmidt J.; Seifert P.; Wandinger U.
发表日期	2020
ISSN	1680-7316
起始页码	15247
结束页码	15263
卷号	20 期号:23
英文摘要	In a series of two articles, a novel, robust, and practicable lidar approach is presented that allows us to derive microphysical properties of liquid-water clouds (cloud extinction coefficient, droplet effective radius, liquid-water content, cloud droplet number concentration) at a height of 50-100m above the cloud base. The temporal resolution of the observations is on the order of 30-120 s. Together with the aerosol information (aerosol extinction coefficients, cloud condensation nucleus concentration) below the cloud layer, obtained with the same lidar, in-depth aerosol-cloud interaction studies can be performed. The theoretical background and the methodology of the new cloud lidar technique is outlined in this article (Part 1), and measurement applications are presented in a companion publication (Part 2) (Jimenez et al., 2020a). The novel cloud retrieval technique is based on lidar observations of the volume linear depolarization ratio at two different receiver fields of view (FOVs). Extensive simulations of lidar returns in the multiple scattering regime were conducted to investigate the capabilities of a dual-FOV polarization lidar to measure cloud properties and to quantify the information content in the measured depolarization features regarding the basic retrieval parameters (cloud extinction coefficient, droplet effective radius). Key simulation results and the overall data analysis scheme developed to obtain the aerosol and cloud products are presented. © 2020 BMJ Publishing Group. All rights reserved.
英文关键词	aerosol; cloud microphysics; field of view; lidar; monitoring system; polarization; scattering; theoretical study
语种	英语
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/168902
作者单位	Leibniz Institute for Tropospheric Research, Leipzig, Germany; Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; National Academy of Sciences of Belarus, Minsk, Belarus; Institute of Meteorology, University of Leipzig, Leipzig, Germany
推荐引用方式 GB/T 7714	Jimenez C.,Ansmann A.,Engelmann R.,et al. The dual-field-of-view polarization lidar technique: A new concept in monitoring aerosol effects in liquid-water clouds - Theoretical framework[J],2020,20(23).
APA	Jimenez C..,Ansmann A..,Engelmann R..,Donovan D..,Malinka A..,...&Wandinger U..(2020).The dual-field-of-view polarization lidar technique: A new concept in monitoring aerosol effects in liquid-water clouds - Theoretical framework.Atmospheric Chemistry and Physics,20(23).
MLA	Jimenez C.,et al."The dual-field-of-view polarization lidar technique: A new concept in monitoring aerosol effects in liquid-water clouds - Theoretical framework".Atmospheric Chemistry and Physics 20.23(2020).