Review of effective emissions modeling and computation 1Sciences de l'Univers au CERFACS, URA1875, CERFACS/CNRS, Toulouse, France
2Météo France, Toulouse, France
3Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany
Received: 07 Dec 2010 – Published in Geosci. Model Dev. Discuss.: 19 Jan 2011Abstract. An important issue in the evaluation of the environmental impact of
emissions from concentrated sources such as transport modes,
is to understand how processes
occurring at the scales of exhaust plumes can influence
the physical and chemical state of the atmosphere at regional
and global scales. Indeed, three-dimensional global circulation models
or chemistry transport models generally assume that emissions are instantaneously
diluted into large-scale grid boxes,
which may lead, for example, to overpredict the efficiency of NOx to produce ozone.
In recent times, various methods have been developed to incorporate
parameterizations of plume processes into global models that are based e.g. on correcting the original emission indexes or on introducing "subgrid"
reaction rates in the models.
This paper provides a review of the techniques proposed so far in the
literature to account for local conversion of emissions in the plume,
as well as the implementation of these techniques into atmospheric codes.
Revised: 25 Jun 2011 – Accepted: 28 Jul 2011 – Published: 05 Aug 2011
Citation: Paoli, R., Cariolle, D., and Sausen, R.: Review of effective emissions modeling and computation, Geosci. Model Dev., 4, 643-667, doi:10.5194/gmd-4-643-2011, 2011.