气候变化领域集成服务门户(CCPortal): Lidar measurements of thin laminations within Arctic clouds

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DOI	10.5194/acp-19-4595-2019
	Lidar measurements of thin laminations within Arctic clouds
	McCullough E.M.; Drummond J.R.; Duck T.J.
发表日期	2019
ISSN	16807316
起始页码	4595
结束页码	4614
卷号	19 期号:7
英文摘要	Very thin ( < 10 m) laminations within Arctic clouds have been observed in all seasons using the Canadian Network for the Detection of Atmospheric Change (CANDAC) Rayleigh-Mie-Raman lidar (CRL) at the Polar Environment Atmospheric Research Laboratory (PEARL; located at Eureka, Nunavut, in the Canadian High Arctic). CRL's time (1 min) and altitude (7.5 m) resolutions from 500m to greater than 12 km altitude make these measurements possible. We have observed a variety of thicknesses for individual laminations, with some at least as thin as the detection limit of the lidar (7.5 m). The clouds which contain the laminated features are typically found below 4 km, can last longer than 24 h, and occur most frequently during periods of snow and rain, often during very stable temperature inversion conditions. Results are presented for range-scaled photocounts at 532 and 355 nm, ratios of 532=355 nm photocounts, and the 532 nm linear depolarization parameter, and with context provided by twice-daily Eureka radiosonde temperature and relative humidity profiles. © Author(s) 2019.
语种	英语
scopus关键词	cloud cover; lidar; measurement method; radiosonde; relative humidity; Arctic
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/144501
作者单位	Department of Physics and Atmospheric Science, Dalhousie University, 6310 Coburg Rd., P.O. Box 15000, Halifax, NS B3Hg4R2, Canada
推荐引用方式 GB/T 7714	McCullough E.M.,Drummond J.R.,Duck T.J.. Lidar measurements of thin laminations within Arctic clouds[J],2019,19(7).
APA	McCullough E.M.,Drummond J.R.,&Duck T.J..(2019).Lidar measurements of thin laminations within Arctic clouds.Atmospheric Chemistry and Physics,19(7).
MLA	McCullough E.M.,et al."Lidar measurements of thin laminations within Arctic clouds".Atmospheric Chemistry and Physics 19.7(2019).