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Chemical Weather Forecasting: a New Concept of Integrated Modelling : Volume 4, Issue 1 (26/03/2010)

By Baklanov, A.

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Book Id: WPLBN0003987556
Format Type: PDF Article :
File Size: Pages 5
Reproduction Date: 2015

Title: Chemical Weather Forecasting: a New Concept of Integrated Modelling : Volume 4, Issue 1 (26/03/2010)  
Author: Baklanov, A.
Volume: Vol. 4, Issue 1
Language: English
Subject: Science, Advances, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Baklanov, A. (2010). Chemical Weather Forecasting: a New Concept of Integrated Modelling : Volume 4, Issue 1 (26/03/2010). Retrieved from

Description: Danish Meteorological Institute, Lyngbyvej 100, 2100 Copenhagen, Denmark. During the last decade a new field of atmospheric modelling – the chemical weather forecasting (CWF) – is quickly developing and growing. However, in the most of the current studies and publications, this field is considered in a simplified concept of the off-line running chemical transport models with operational numerical weather prediction (NWP) data as a driver. A new concept and methodology considering the chemical weather as two-way interacting meteorological weather and chemical composition of the atmosphere is suggested and discussed. The on-line integration of mesometeorological models and atmospheric aerosol and chemical transport models gives a possibility to utilize all meteorological 3-D fields in the chemical transport model at each time step and to consider feedbacks of air pollution (e.g. urban aerosols) on meteorological processes/climate forcing and then on the atmospheric chemical composition. This very promising way for future atmospheric simulation systems (as a part of and a step to Earth System Modelling) will lead to a new generation of models for meteorological, environmental and chemical weather forecasting. The methodology how to realise the suggested integrated CWF concept is demonstrated on the example of the European Enviro-HIRLAM integrated system. The importance of different feedback mechanisms for CWF is also discussed in the paper.

Chemical weather forecasting: a new concept of integrated modelling

Baklanov, A. and Korsholm, U.: On-line integrated meteorological and chemical transport modelling: advantages and prospective, in: ITM 2007: 29th NATO/SPS International Technical Meeting on Air Pollution. Modelling and its Application, 24–28.09.2007, University of Aveiro, Portugal, 21–34, 2007.; Baklanov, A., Korsholm, U., Mahura, A., Petersen, C., and Gross, A.: ENVIRO-HIRLAM: on-line coupled modelling of urban meteorology and air pollution, Adv. Sci. Res., 2, 41–46, 2008a.; Baklanov, A., Mestayer, P. G., Clappier, A., Zilitinkevich, S., Joffre, S., Mahura, A., and Nielsen, N. W.: Towards improving the simulation of meteorological fields in urban areas through updated/advanced surface fluxes description, Atmos. Chem. Phys., 8, 523–543, 2008b.; Bellouin, N., Boucher, O., Haywood, J., and Reddy, M. S.: Global estimate of aerosol direct radiative forcing from satellite measurements, Nature, 438, 1138–1141, 2005.; Chenevez, J., Baklanov, A., and Sørensen, J. H.: Pollutant transport schemes integrated in a numerical weather prediction model: Model description and verification results, Meteorol. Appl., 11(3), 265–275, 2004.; COST-NetFAM: Integrated systems of meso-meteorological and chemical transport models, edited by: Baklanov, A., Mahura, A., and Sokhi, R., Materials of the COST-728/NetFAM workshop, DMI, Copenhagen, 21–23 May 2007, 183 pp., Springer (in press), available at:, 2008.; COST-WMO: Overview of existing integrated (off-line and on-line) meso-scale systems in Europe, edited by: Baklanov, A., Fay, B., Kaminski, J., Sokhi, R., Joint Report of COST728 and GURME, May 2007, WMO-COST publication, GAW Report No. 177, WMO TD No. 1427, available at:, 2007.; Grell, G. A., Knoche, R., Peckham, S. E., and McKeen, S.: Online versus offline air quality modeling on cloud-resolving scales, Geophys. Res. Lett., 31, L16117, doi:10.1029/2004GL020175, 2004.; Grell, G. A., Peckham, S. E., Schmitz, R., McKeen, S. A., Frost, G., Skamarock, W. C., and Eder, B.: Fully coupled online chemistry within the WRF model, Atmos. Environ., 39(37), 6957–6975, 2005.; Gross, A. and Baklanov, A.: Modelling the influence of dimethyl sulphide on the aerosol production in the marine boundary layer, Int. J. Environ. Pollut., 22, 51–71, 2004.; Jacobson, M. Z.: Control of fossil-fuel particulate black carbon and organic matter, possibly the most effective method of slowing global warming, J. Geophys. Res., 107(D19), 4410, doi:10.1029/2001JD001376, 2002.; Korsholm, U.: Integrated modeling of aerosol indirect effects – development and application of a chemical weather model, PhD thesis University of Copenhagen, Niels Bohr Institute and Danish Meteorological Institute, Research department,, 2009.; Lawrence, M. G., Hov, Ø., Backmann, M., Brandt, J., Elbern, H., Eskes, H., Feichter, H., and Takigawa, M.: The Chemical Weather. Environ. Chem., 2, 6–8, 2005.; Korsholm, U. S., Baklanov, A., Gross, A., Mahura, A., Sass, B. H., and Kaas, E.: Online coupled chemical weather forecasting based on HIRLAM – overview and prospective of Enviro-HIRLAM, HIRLAM Newsletter, 54, 151–168, 2008.; Korsholm, U. S., Baklanov, A., Gross, A., and Sørensen, J. H.: On the importance of the meteorological coupling interval in dispersion modeling during ETEX-1, Atmos. Environ., 43(31), 4805–4810, 2009.; Ramanathan, V. and Carmichael, G.: Global and regional climate changes due to black carbon, Nature Geosci., 1(4), 221–227, 2008.; Rosenfeld, D.: Suppression of Rain and Snow by Urban and Industrial Air Pollution, Science, 287(5459), 1793–1796, 2000.; Schulz, M., Textor, C., Kinne, S., Balkanski, Y., Bauer, S., Berntsen, T., Berglen, T., Boucher, O., Dentener, F., Guibert, S., Isaksen, I. S. A., Iversen, T., Koch, D., Kirkevåg, A., Liu, X., Montanaro, V., Myhre


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