Articles | Volume 20, issue 20
Research article
27 Oct 2020
Research article |  | 27 Oct 2020

Ceilometers as planetary boundary layer height detectors and a corrective tool for COSMO and IFS models

Leenes Uzan, Smadar Egert, Pavel Khain, Yoav Levi, Elyakom Vadislavsky, and Pinhas Alpert

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New insights into the vertical structure of the September 2015 dust storm employing eight ceilometers and auxiliary measurements over Israel
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Ceilometer evaluation of the eastern Mediterranean summer boundary layer height – first study of two Israeli sites
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Subject: Dynamics | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Alpert, P. and Neumann, J.: On the enhanced smoothing over topography in some mesometeorological models, Bound. Lay.-Meteorol., 30, 293–312, 1984. 
Alpert, P. and Rabinovich-Hadar, M.: Pre- and post-frontal lines – A meso gamma scale analysis over south Israel, J. Atmos. Sci., 60, 2994–3008, 2003. 
Alpert, P. and Ziv, B.: The Sharav cyclone observations and some theoretical considerations, J. Geophys. Res., 94, 18495–18514, 1989. 
Alpert, P., Abramsky, R., and Neeman, B. U.: The prevailing summer synoptic system in Israel-Subtropical high, not Persian Trough, Isr. J. Earth Sci., 39, 93–102, 1990. 
Alpert, P., Herman, J., Kaufman, Y. J., and Carmona, I.: Response of the climatic temperature to dust forcing, inferred from TOMS Aerosol Index and the NASA assimilation model, J. Atmos. Res., 53, 3–14, 2000. 
Short summary
Detection of the planetary boundary layer (PBL) height is crucial to various fields, from air pollution assessment to weather prediction. We examined the diurnal summer PBL height by eight ceilometers in Israel, radiosonde profiles, the global IFS, and regional COSMO models. Our analysis utilized the bulk Richardson number method, the parcel method, and the wavelet covariance transform method. A novel correction tool to improve model results against in-situ ceilometer measurements is introduced.
Final-revised paper