Special Issue "Atmospheric Dispersion of Pollutants in Urban Environments"

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Air Quality".

Deadline for manuscript submissions: 30 November 2019.

Special Issue Editor

Guest Editor
Dr. Silvia Trini Castelli Website E-Mail
Institute of Atmospheric Sciences and Climate (CNR-ISAC) Torino Branch, 10133 Torino, Italy
Interests: atmospheric physics; planetary boundary layer meteorology; turbulence; atmospheric dynamics and dispersion modelling; numerical modelling of atmospheric circulation, transport and pollutant dispersion, in particular over complex terrain

Special Issue Information

Dear Colleagues,

Since 2014, more than 50% of the world′s population is residing in urban areas. Urban areas represent hotspots for air pollution problems, given the presence of different pollution sources, such as traffic, industries, house heating. This is true especially for large and densely populated cities. This Special Issue is devoted to all theoretical, modelling, and observational aspects of atmospheric dispersion of pollutants in urban environments, characterized by distinctive processes due to the interaction of the atmospheric flow with the complex urban geometry. Studies on all scales are of interest, from the street scale to the city and regional scales, including those related to the effects of the urban heat island. The topics of interest of this Special Issue include the investigation and parameterization of all atmospheric processes related to dispersion, numerical modelling with different approaches at various scales, data analysis of observed quantities determining the dispersion of pollutants, in both real urban sites and physical models.

Dr. Silvia Trini Castelli
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • urban air pollution
  • turbulence and dispersion
  • modelling
  • observations
  • open theoretical issues

Published Papers (1 paper)

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Open AccessArticle
Parallelization Performances of PMSS Flow and Dispersion Modeling System over a Huge Urban Area
Atmosphere 2019, 10(7), 404; https://doi.org/10.3390/atmos10070404 - 16 Jul 2019
The use of modeling as a support tool for crisis management and decision planning requires fast simulations in complex built-up areas. The Parallel Micro SWIFT SPRAY (PMSS) modeling system offers a tradeoff between accuracy and fast calculations, while retaining the capability to model [...] Read more.
The use of modeling as a support tool for crisis management and decision planning requires fast simulations in complex built-up areas. The Parallel Micro SWIFT SPRAY (PMSS) modeling system offers a tradeoff between accuracy and fast calculations, while retaining the capability to model buildings at high resolution in three dimensions. PMSS has been applied to actual areas of responsibilities of emergency teams during the EMERGENCIES (very high rEsolution eMERGEncy simulatioN for citIES) and EMED (Emergencies for the MEDiterranean sea) projects: these areas cover several thousands of square kilometers. Usage of metric meshes on such large areas requires domain decomposition parallel algorithms within PMSS. Sensitivity and performance of the domain decomposition has been evaluated both for the flow and dispersion models, using from 341 up to 8052 computing cores. Efficiency of the Parallel SWIFT (PSWIFT) flow model on the EMED domain remains above 50% for up to 4700 cores. Influence of domain decomposition on the Parallel SPRAY (PSPRAY) Lagrangian dispersion model is less straightforward to evaluate due to the complex load balancing process. Due to load balancing, better performance is achieved with the finest domain decomposition. PMSS is able to simulate accidental or malevolent airborne release at high resolution on very large areas, consistent with emergency team responsibility constrains, and with computation time compatible with operational use. This demonstrates that PMSS is an important asset for emergency response applications. Full article
(This article belongs to the Special Issue Atmospheric Dispersion of Pollutants in Urban Environments)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Three-Dimensional Modelling of Radiative and Convective Exchanges over a European City Centre
Yongfeng QU, Maya MILLIEZ, and Bertrand CARISSIMO
Centre d'Enseignement et de Recherche en Environnement Atmosphérique (CEREA) , Chatou Cedex, France

Comparison of the Turbulence in Rome and the Surrounding Rural Areas
Roberto SOZZI(1),  Giampietro CASASANTA(2), Sandro FINARDI(1), Igor PETENKO(2), and Stefania ARGENTINI(2)
(1)Arianet Srl, Milano, Italy; (2)Institute of Atmospheric Sciences and Climate (CNR-ISAC), Roma, Italy

Parallelisation Performance of Pmss Flow and Dispersion Simulations over a Huge Urban Area
Olivier OLDRINI(1), Patrick ARMAND(2), Christophe DUCHENNE(2), and Sylvie PERDRIEL(1)
1AmpliSIM, Paris, France; 2CEA, DAM, DIF, F-91297 Arpajon, France

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