Articles | Volume 25, issue 2
https://doi.org/10.5194/acp-25-1063-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-1063-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Jan 2025
Research article |
| 28 Jan 2025
| 28 Jan 2025
Investigating processes influencing simulation of local Arctic wintertime anthropogenic pollution in Fairbanks, Alaska, during ALPACA-2022
Natalie Brett
CORRESPONDING AUTHOR
Sorbonne Université, UVSQ, CNRS, LATMOS, 75252 Paris, France
Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, UK
Kathy S. Law
Sorbonne Université, UVSQ, CNRS, LATMOS, 75252 Paris, France
Institute for Climate and Atmospheric Science, School of Earth and Environment, University of Leeds, Leeds, UK
Javier G. Fochesatto
Department of Atmospheric Sciences, College of Natural Science and Mathematics, University of Alaska Fairbanks, Fairbanks, AK 99775, United States
Jean-Christophe Raut
Sorbonne Université, UVSQ, CNRS, LATMOS, 75252 Paris, France
Tatsuo Onishi
Sorbonne Université, UVSQ, CNRS, LATMOS, 75252 Paris, France
Robert Gilliam
Center for Environmental Measurement and Modeling, Office of Research and Development, US EPA, Research Triangle Park, NC 27709, United States
Kathleen Fahey
Center for Environmental Measurement and Modeling, Office of Research and Development, US EPA, Research Triangle Park, NC 27709, United States
Deanna Huff
Alaska Department of Environmental Conservation, P.O. Box 111800, Juneau, AK 99811-1800, United States
George Pouliot
Center for Environmental Measurement and Modeling, Office of Research and Development, US EPA, Research Triangle Park, NC 27709, United States
Brice Barret
Laboratoire d'Aérologie (LAERO), Université Toulouse III – Paul Sabatier, CNRS, 31400 Toulouse, France
Elsa Dieudonné
Laboratoire de Physico-Chimie de l'Atmosphère (LPCA), Université du Littoral Côte d’Opale (ULCO), 59140 Dunkirk, France
Roman Pohorsky
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne, Sion, 1950, Switzerland
Julia Schmale
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne, Sion, 1950, Switzerland
Andrea Baccarini
Extreme Environments Research Laboratory, École Polytechnique Fédérale de Lausanne, Sion, 1950, Switzerland
Laboratory of Atmospheric Processes and their Impacts, École Polytechnique Fédérale de Lausanne, Lausanne, 1015, Switzerland
Slimane Bekki
Sorbonne Université, UVSQ, CNRS, LATMOS, 75252 Paris, France
Gianluca Pappaccogli
Institute of Atmospheric Sciences and Climate (ISAC) of the National Research Council of Italy (CNR), Lecce 73100, Italy
Federico Scoto
Institute of Atmospheric Sciences and Climate (ISAC) of the National Research Council of Italy (CNR), Lecce 73100, Italy
Stefano Decesari
Institute of Atmospheric Sciences and Climate (ISAC) of the National Research Council of Italy (CNR), Bologna 40121, Italy
Antonio Donateo
Institute of Atmospheric Sciences and Climate (ISAC) of the National Research Council of Italy (CNR), Lecce 73100, Italy
Meeta Cesler-Maloney
Geophysical Institute and Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, AK 99775, United States
William Simpson
Geophysical Institute and Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, AK 99775, United States
Patrice Medina
Laboratoire d'Aérologie (LAERO), Université Toulouse III – Paul Sabatier, CNRS, 31400 Toulouse, France
Barbara D'Anna
Aix Marseille Univ, CNRS, LCE, 13331 Marseille, France
Brice Temime-Roussel
Aix Marseille Univ, CNRS, LCE, 13331 Marseille, France
Joel Savarino
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
Sarah Albertin
IGE, Univ. Grenoble Alpes, CNRS, INRAE, IRD, Grenoble INP, 38000 Grenoble, France
Sorbonne Université, UVSQ, CNRS, LATMOS, 75252 Paris, France
Jingqiu Mao
Geophysical Institute and Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, AK 99775, United States
Becky Alexander
Department of Atmospheric and Climate Science, University of Washington, Seattle, WA 98195, United States
Allison Moon
Department of Atmospheric and Climate Science, University of Washington, Seattle, WA 98195, United States
Peter F. DeCarlo
Department of Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
Vanessa Selimovic
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, United States
Robert Yokelson
Department of Chemistry and Biochemistry, University of Montana, Missoula, MT 59812, United States
Ellis S. Robinson
Department of Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD 21218, United States
Data sets
Multi-platform trace gas (CO, O3, NO, NO2) data from the MICROMEGAS low-cost sensors instrument in Fairbanks during the Alaskan Layered Pollution and Chemical Analysis (ALPACA) field campaign in winter 2022 Brice Barret et al. https://doi.org/10.18739/A2V11VN3Z
Gas and meteorological measurements at the CTC site and Birch Hill in Fairbanks, Alaska, during the ALPACA-2022 field study William Simpson et al. https://doi.org/10.18739/A27D2Q87W
ALPACA Data Portal Arctic Data Center https://arcticdata.io/catalog/portals/ALPACA/Data
Model code and software
Weather Research and Forecasting Model (WRF) version 4.3 NCAR https://github.com/wrf-model/WRF/releases
Short summary
Processes influencing dispersion of local anthropogenic pollution in Arctic wintertime are investigated with Lagrangian dispersion modelling. Simulated power plant plume rise that considers temperature inversion layers improves results compared to observations (interior Alaska). Modelled surface concentrations are improved by representation of vertical mixing and emission estimates. Large increases in diesel vehicle emissions at temperatures reaching −35°C are required to reproduce observed NOx.
Processes influencing dispersion of local anthropogenic pollution in Arctic wintertime are...
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