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Review

Atmospheric Pollutant Dispersion over Complex Terrain: Challenges and Needs for Improving Air Quality Measurements and Modeling

1
Department of Civil, Environmental and Mechanical Engineering, University of Trento, 38123 Trento, Italy
2
Department of Science and Technological Innovation, University of Eastern Piedmont, 15151 Alessandria, Italy
3
Department of Atmospheric and Cryospheric Sciences, University of Innsbruck, 6020 Innsbruck, Austria
4
Université Grenoble Alpes, CNRS, Grenoble INP, LEGI, 38000 Grenoble, France
5
Institute of Atmospheric Sciences and Climate, National Research Council, 10133 Torino, Italy
6
C3A—Center Agriculture Food Environment, University of Trento, 38010 San Michele all’Adige, Italy
*
Author to whom correspondence should be addressed.
Atmosphere 2020, 11(6), 646; https://doi.org/10.3390/atmos11060646
Received: 27 May 2020 / Revised: 13 June 2020 / Accepted: 16 June 2020 / Published: 18 June 2020
(This article belongs to the Special Issue Atmospheric Processes over Complex Terrain)
Pollutant dispersion processes over complex terrain are much more complicated than over flat areas, as they are affected by atmospheric interactions with the orography at different spatial scales. This paper reviews recent findings and progress in this field, focusing on both experimental and modeling perspectives. It highlights open questions and challenges to our capability for better understanding and representing atmospheric processes controlling the fate of pollutants over mountainous areas. In particular, attention is focused on new measurement techniques for the retrieval of spatially distributed turbulence information and air quality parameters, and on challenges for meteorological and dispersion models to reproduce fine-scale processes influenced by the orography. Finally, specific needs in this field are discussed, along with possible directions for future research efforts. View Full-Text
Keywords: air pollutant; turbulence; dispersion; transport; diffusion; atmospheric boundary layer; mountain; complex terrain air pollutant; turbulence; dispersion; transport; diffusion; atmospheric boundary layer; mountain; complex terrain
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MDPI and ACS Style

Giovannini, L.; Ferrero, E.; Karl, T.; Rotach, M.W.; Staquet, C.; Trini Castelli, S.; Zardi, D. Atmospheric Pollutant Dispersion over Complex Terrain: Challenges and Needs for Improving Air Quality Measurements and Modeling. Atmosphere 2020, 11, 646. https://doi.org/10.3390/atmos11060646

AMA Style

Giovannini L, Ferrero E, Karl T, Rotach MW, Staquet C, Trini Castelli S, Zardi D. Atmospheric Pollutant Dispersion over Complex Terrain: Challenges and Needs for Improving Air Quality Measurements and Modeling. Atmosphere. 2020; 11(6):646. https://doi.org/10.3390/atmos11060646

Chicago/Turabian Style

Giovannini, Lorenzo, Enrico Ferrero, Thomas Karl, Mathias W. Rotach, Chantal Staquet, Silvia Trini Castelli, and Dino Zardi. 2020. "Atmospheric Pollutant Dispersion over Complex Terrain: Challenges and Needs for Improving Air Quality Measurements and Modeling" Atmosphere 11, no. 6: 646. https://doi.org/10.3390/atmos11060646

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