干旱区生态环境知识资源中心(Arid): Ceilometers as planetary boundary layer height detectors and a corrective tool for COSMO and IFS models

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DOI	10.5194/acp-20-12177-2020
	Ceilometers as planetary boundary layer height detectors and a corrective tool for COSMO and IFS models
	Uzan, Leenes; Egert, Smadar; Khain, Pavel; Levi, Yoav; Vadislavsky, Elyakom; Alpert, Pinhas
通讯作者	Uzan, L
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
EISSN	1680-7324
出版年	2020
卷号	20 期号:20 页码:12177-12192
英文摘要	The significance of planetary boundary layer (PBL) height detection is apparent in various fields, especially in air pollution dispersion assessments. Numerical weather models produce a high spatial and temporal resolution of PBL heights; however, their performance requires validation. This necessity is addressed here by an array of eight ceilometers; a radiosonde; and two models - the Integrated Forecast System (IFS) global model and COnsortium for Small-scale MOdeling (COSMO) regional model. The ceilometers were analyzed with the wavelet covariance transform method, and the radiosonde and models with the parcel method and the bulk Richardson method. Good agreement for PBL height was found between the ceilometer and the adjacent Bet Dagan radiosonde (33 m a.s.l.) at 11:00 UTC launching time (N = 91 d, ME = 4 m, RMSE = 143 m, R = 0.83). The models' estimations were then compared to the ceilometers' results in an additional five diverse regions where only ceilometers operate. A correction tool was established based on the altitude (h) and distance from shoreline (d) of eight ceilometer sites in various climate regions, from the shoreline of Tel Aviv (h = 5 m a.s.l., d = 0.05 km) to eastern elevated Jerusalem (h = 830 m a.s.l., d = 53 km) and southern arid Hazerim (h = 200 m a.s.l., d = 44 km). The tool examined the COSMO PBL height approximations based on the parcel method. Results from a 14 August 2015 case study, between 09:00 and 14:00 UTC, showed the tool decreased the PBL height at the shoreline and in the inner strip of Israel by similar to 100m and increased the elevated sites of Jerusalem and Hazerim up to similar to 400 m, and similar to 600 m, respectively. Cross-validation revealed good results without Bet Dagan. However, without measurements from Jerusalem, the tool underestimated Jerusalem's PBL height by up to similar to 600 m.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000582569200003
WOS关键词	MIXED-LAYER ; MEDITERRANEAN CLIMATE ; TEMPORAL BEHAVIOR ; DUST STORM ; IN-SITU ; SUMMER ; LIDAR ; SEA ; ISRAEL ; PARAMETERIZATION
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327137
作者单位	[Uzan, Leenes; Egert, Smadar; Alpert, Pinhas] Tel Aviv Univ, Dept Geophys, Raymond & Beverly Sackler Fac Exact Sci, Porter Sch Environm & Earth Sci, IL-6997801 Tel Aviv, Israel; [Uzan, Leenes; Khain, Pavel; Levi, Yoav; Vadislavsky, Elyakom] Israeli Meteorol Serv, Bet Dagan, Israel
推荐引用方式 GB/T 7714	Uzan, Leenes,Egert, Smadar,Khain, Pavel,et al. Ceilometers as planetary boundary layer height detectors and a corrective tool for COSMO and IFS models[J],2020,20(20):12177-12192.
APA	Uzan, Leenes,Egert, Smadar,Khain, Pavel,Levi, Yoav,Vadislavsky, Elyakom,&Alpert, Pinhas.(2020).Ceilometers as planetary boundary layer height detectors and a corrective tool for COSMO and IFS models.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(20),12177-12192.
MLA	Uzan, Leenes,et al."Ceilometers as planetary boundary layer height detectors and a corrective tool for COSMO and IFS models".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.20(2020):12177-12192.