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Parameterization of Vertical Diffusion and the Atmospheric Boundary Layer Height Determination in the Emep Model : Volume 9, Issue 2 (16/04/2009)

By Jeričević, A.

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Book Id: WPLBN0003998572
Format Type: PDF Article :
File Size: Pages 49
Reproduction Date: 2015

Title: Parameterization of Vertical Diffusion and the Atmospheric Boundary Layer Height Determination in the Emep Model : Volume 9, Issue 2 (16/04/2009)  
Author: Jeričević, A.
Volume: Vol. 9, Issue 2
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Kraljević, L., Fagerli, H., Grisogono, B., & Jeričević, A. (2009). Parameterization of Vertical Diffusion and the Atmospheric Boundary Layer Height Determination in the Emep Model : Volume 9, Issue 2 (16/04/2009). Retrieved from http://ebooklibrary.org/


Description
Description: Meteorological and Hydrological Service of Croatia, Zagreb, Croatia. A new vertical diffusion scheme, called Grisogono, has been implemented in the Unified EMEP (European Monitoring and Evaluation Programme) model. It is shown based on Large Eddy Simulation (LES) that the Grisogono method performs better than the operational O'Brien's polynomial, especially in the stable conditions. In this work, the operational and proposed new parameterization for eddy diffusivity K(z) have been validated against observed daily surface nitrogen dioxide (NO2), sulphur dioxide (SO2) and sulphate (SO4−2) concentrations at different EMEP stations during year 2001. Moderate improvement in the correlation coefficient and bias for NO2 and SO2 and slight improvement for sulphate is found for most of the analyzed stations with the Grisogono K(z) scheme, which is recommended for further application due to its scientific and technical advantages. Special emphasis is given to the representation of the atmospheric boundary layer (ABL) in order to capture vertical transport and dispersion of atmospheric air pollution. Two different ABL schemes are evaluated against radiosounding data in January and July 2001, and against data from the Cabauw tower, the Netherlands, in the same year. Based on validation of the ABL parameterizations, it is found that the EMEP model is able to reproduce spatial and temporal mixing height variability. Improvements are identified especially in stable conditions with the new ABL scheme based on the bulk Richardson number (RiB).

Summary
Parameterization of vertical diffusion and the atmospheric boundary layer height determination in the EMEP model

Excerpt
Athanassiadis, G., Trivikrama, R., Jia-Yeong, K., and Clarc, R.: Boundary layer evolution and its influence on ground level ozone concentrations, Environ. Fluid Mech., 2(4), 339–357, doi:10.1023/A:102456018087, 2002.; Bartnicki, J., Gusev, A., Barrett, K., and Simpson, D.: Atmospheric Supply of Nitrogen, Lead, Cadmium, Mercury and Dioxins/Furans to the Baltic Sea in 1996–2000, Joint MSC-W & NILU Note 6/02, for the Helsinki Commission (HELCOM), Baltic Marine Environment Protection Commission, 2002.; Beljaars, A. C. M. and Bosveld, F. C.: Cabauw data for the validation of land surface parameterization schemes, J. Climate, 10(6), 1172–1193, doi:10.1175/1520-0442(1997)010<1172;CDFTVO>2.0.CO;2, 1997.; Berge, E. and Jakobsen, H. A.: A regional scale multi-layer model for the calculation of long-term transport and deposition of air pollution in Europe, Tellus, 50, 205–223, doi:10.1034/j.1600-0889.1998.t01-2-00001.x, 1998.; Biswas, J. and Rao, T.: Uncertainties in episodic ozone modeling stemming from uncertainties in the meteorological fields, J. Appl. Meteorol., 40, 117–136, doi:10.1175/1520-0450(2001)040<0117:UIEOMS>2.0.CO;2, 2000.; Blackadar, A. K.: Modeling pollutant transfer during daytime convection. In: Fourth Symposium on Atmospheric Turbulence Diffusion and Air Quality, AMS, Reno, NV, USA, 443–447, 1979.; Fagerli, H., Simpson, D., and Tsyro, S.: Unified EMEP model: Updates. In EMEP Report 1/2004, Transboundary acidification, eutrophication and ground level ozone in Europe, Status Report 1/2004, The Norwegian Meteorological Institute, Oslo, Norway, 11–18, 2004.; Ivatek-Šahdan, S. and Tudor, M.: Use of high-resolution dynamical adaptation in operational suite and research impact studies, Meteorol. Z., 13(2), 99–108, 2004.; Chen, T. H., Henderson-Sellers, A., Milly, P. C. D., Pitman, A., Beljaars, A. C. M., Abramopoulos, F., Boone, A., Chang, S., Chen, F., Dai, Y., Desborough, C., Dickinson, R., Duemenil, L., Ek, M., Garratt, J., Gedney, N., Gusev, Y., Kim, J., Koster, R., Kowalczyk, E., Laval, K., Lean, J., Lettenmaier, D., Liang, X., Mengelkamp, T.-H., Mahfouf, J.-F., Mitchell, K., Nasonova, O., Noilhan, J., Polcher, J., Robock, A., Rosenzweig, C., Schaake, J., Schlosser, C. A., Schulz, J. P., Shao, Y., Shmakin, A., Verseghy, D., Wetzel, P., Wood, E., Xue, Y., Yang, Z.-L., and Zeng, Q.-C.: Cabauw experimental results from the Project for Intercomparison of Land-surface Parameterization Schemes (PILPS), J. Climate, 10, 1194–1215, doi:10.1175/1520-0442(1997)010<1194;CERFTP>2.0.CO;2, 1997.; Deardorff, J. W.: Parameterization of the planetary boundary layer for use in general circulation model, Mon. Weather Rev., 100, 93–106, doi:10.1175/1520-0469(19729029<0091:NIONAU>2.0.CO;2, 1972.; Ek, M. B. and Holtslag, A. A. M.: Evaluation of a land-surface scheme at Cabauw, Theor. Appl. Climatol., 80, 213–227, doi:10.1007/S00704-004-0101-4, 2005.; ENVIRON: User's Guide to the Comprehensive Air Quality Model with Extensions (CAMx) Version 2.00. ENVIRON International Corporation, 101 Rowland Way, Suite 220, Novato, California, USA, 94945-5010, online available at: http://www.camx.com/, 1998.; Esau, I. and Zilitinkevich, S. S.: Universal dependences between turbulent and mean flow parameters in stably and neutrally stratified planetary boundary layers, Nonlinear Proc. Geoph., 13, 122–144, 2006.; Fagerli, H. and Eliassen, A.: Modified parametrization of vertical diffusion, in: Transboundary Acidification, Eutrophication and Ground Level ozone in Europe, EMEP Summary Status Report 2002, Joint CCC & MSC-W Research Report No. 1{&}2/01, Norwegian Meteorological Institute, Oslo, Norway, 74 pp., online available at: http://emep.int/publ/common_publications.html#2003, 2002.; Fagerli, H., Simpson, D., and Aas, W.: Model performance for sulphur and nitrogen compounds for the period 1980 to

 

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