Investigating the relative contributions of power plant and surface emissions to air pollution in Fairbanks, Alaska during the wintertime ALPACA 2022 campaign
International audience Local air pollution sources in the Arctic lead to poor air quality in Arctic cities, particularly during the winter months. Fairbanks in central Alaska, is a prime example of such an Arctic city which suffers from acute wintertime pollution episodes. The topography of Fairbank...
Main Authors: | , , , , , , , , , , , , , , , , , , , |
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Language: | English |
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HAL CCSD
2023
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Online Access: | https://insu.hal.science/insu-04135389 https://doi.org/10.5194/egusphere-egu23-6258 |
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ftmeteofrance:oai:HAL:insu-04135389v1 |
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Open Polar |
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Météo-France: HAL |
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ftmeteofrance |
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English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Brett, Natalie Law, Kathy S. Arnold, Stephen Barret, Brice Dieudonné, Elsa Fochesatto, Gilberto Gilliam, Robert Onishi, Tatsuo Bekki, Slimane Schmale, Julia Pohorsky, Roman Baccarini, Andrea d'Anna, Barbara Temime-Roussel, Brice Decesari, Stefano Pappaccogli, Gianluca Donateo, Antonio Scoto, Federico Cesler-Maloney, Meeta Huff, Deanna Investigating the relative contributions of power plant and surface emissions to air pollution in Fairbanks, Alaska during the wintertime ALPACA 2022 campaign |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Local air pollution sources in the Arctic lead to poor air quality in Arctic cities, particularly during the winter months. Fairbanks in central Alaska, is a prime example of such an Arctic city which suffers from acute wintertime pollution episodes. The topography of Fairbanks (situated in a basin), coupled with strong surface-based temperature inversions, contributes to stable meteorological conditions that hinder the dispersion of pollutants and surface temperatures reaching -40 °C. These harsh winter conditions result in enhanced domestic and power plant combustion emissions. Stable meteorological regimes are frequently interspersed with less stable episodes, resulting in vertical mixing between surface and elevated inversion layers. However, there are many uncertainties in our understanding about pollution sources and secondary aerosol formation under cold, dark winter conditions, where photochemistry is limited. These issues were addressed through the collection of comprehensive datasets on atmospheric composition and meteorology in Fairbanks, during the international ALPACA (Alaskan Layered Pollution and Chemical Analysis) field campaign in January and February 2022. Data were collected at the surface and vertical profiles were collected using a tethered balloon (EPFL Helikite).Here, we examine the relative contributions and distributions of power plant emissions, emitted above the surface, and surface emission sources to pollution levels in the Fairbanks region. The FLEXPART-Weather Research and Forecasting (WRF) Lagrangian particle dispersion model, driven by meteorological fields from WRF-Environmental Protection Agency (EPA, Alaska) simulations is deployed. Firstly, model runs are used to evaluate the transport and dispersion of emissions from power plants at several altitudes in and around Fairbanks. Surface-based and elevated temperature inversions, characteristic of the winter boundary layer in Fairbanks, are considered in a parameterisation of power plant plume injection ... |
author2 |
TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Institute for Climate and Atmospheric Science Leeds (ICAS) School of Earth and Environment Leeds (SEE) University of Leeds-University of Leeds Laboratoire d'aérologie (LAERO) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Physico-Chimie de l'Atmosphère (LPCA) Université du Littoral Côte d'Opale (ULCO) University of Alaska Fairbanks (UAF) US Environmental Protection Agency (EPA) Extreme Environments Research Laboratory (EERL) Ecole Polytechnique Fédérale de Lausanne (EPFL) Laboratory of Atmospheric Processes and their Impacts (LAPI) Laboratoire Chimie de l'environnement (LCE) Aix Marseille Université (AMU)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Istituto di Scienze dell'Atmosfera e del Clima Bologna (ISAC) National Research Council of Italy Istituto di Scienze dell'Atmosfera e del Clima Lecce (ISAC) Alaska Department of Environmental Conservation (ADEC) |
format |
Conference Object |
author |
Brett, Natalie Law, Kathy S. Arnold, Stephen Barret, Brice Dieudonné, Elsa Fochesatto, Gilberto Gilliam, Robert Onishi, Tatsuo Bekki, Slimane Schmale, Julia Pohorsky, Roman Baccarini, Andrea d'Anna, Barbara Temime-Roussel, Brice Decesari, Stefano Pappaccogli, Gianluca Donateo, Antonio Scoto, Federico Cesler-Maloney, Meeta Huff, Deanna |
author_facet |
Brett, Natalie Law, Kathy S. Arnold, Stephen Barret, Brice Dieudonné, Elsa Fochesatto, Gilberto Gilliam, Robert Onishi, Tatsuo Bekki, Slimane Schmale, Julia Pohorsky, Roman Baccarini, Andrea d'Anna, Barbara Temime-Roussel, Brice Decesari, Stefano Pappaccogli, Gianluca Donateo, Antonio Scoto, Federico Cesler-Maloney, Meeta Huff, Deanna |
author_sort |
Brett, Natalie |
title |
Investigating the relative contributions of power plant and surface emissions to air pollution in Fairbanks, Alaska during the wintertime ALPACA 2022 campaign |
title_short |
Investigating the relative contributions of power plant and surface emissions to air pollution in Fairbanks, Alaska during the wintertime ALPACA 2022 campaign |
title_full |
Investigating the relative contributions of power plant and surface emissions to air pollution in Fairbanks, Alaska during the wintertime ALPACA 2022 campaign |
title_fullStr |
Investigating the relative contributions of power plant and surface emissions to air pollution in Fairbanks, Alaska during the wintertime ALPACA 2022 campaign |
title_full_unstemmed |
Investigating the relative contributions of power plant and surface emissions to air pollution in Fairbanks, Alaska during the wintertime ALPACA 2022 campaign |
title_sort |
investigating the relative contributions of power plant and surface emissions to air pollution in fairbanks, alaska during the wintertime alpaca 2022 campaign |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://insu.hal.science/insu-04135389 https://doi.org/10.5194/egusphere-egu23-6258 |
op_coverage |
Vienna (Austria), Austria |
geographic |
Arctic Fairbanks |
geographic_facet |
Arctic Fairbanks |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_source |
EGU General Assembly 2023 https://insu.hal.science/insu-04135389 EGU General Assembly 2023, Apr 2023, Vienna (Austria), Austria. pp.EGU23-6258, ⟨10.5194/egusphere-egu23-6258⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu23-6258 insu-04135389 https://insu.hal.science/insu-04135389 doi:10.5194/egusphere-egu23-6258 |
op_doi |
https://doi.org/10.5194/egusphere-egu23-6258 |
_version_ |
1798840869027053568 |
spelling |
ftmeteofrance:oai:HAL:insu-04135389v1 2024-05-12T07:59:30+00:00 Investigating the relative contributions of power plant and surface emissions to air pollution in Fairbanks, Alaska during the wintertime ALPACA 2022 campaign Brett, Natalie Law, Kathy S. Arnold, Stephen Barret, Brice Dieudonné, Elsa Fochesatto, Gilberto Gilliam, Robert Onishi, Tatsuo Bekki, Slimane Schmale, Julia Pohorsky, Roman Baccarini, Andrea d'Anna, Barbara Temime-Roussel, Brice Decesari, Stefano Pappaccogli, Gianluca Donateo, Antonio Scoto, Federico Cesler-Maloney, Meeta Huff, Deanna TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Institute for Climate and Atmospheric Science Leeds (ICAS) School of Earth and Environment Leeds (SEE) University of Leeds-University of Leeds Laboratoire d'aérologie (LAERO) Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Physico-Chimie de l'Atmosphère (LPCA) Université du Littoral Côte d'Opale (ULCO) University of Alaska Fairbanks (UAF) US Environmental Protection Agency (EPA) Extreme Environments Research Laboratory (EERL) Ecole Polytechnique Fédérale de Lausanne (EPFL) Laboratory of Atmospheric Processes and their Impacts (LAPI) Laboratoire Chimie de l'environnement (LCE) Aix Marseille Université (AMU)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Istituto di Scienze dell'Atmosfera e del Clima Bologna (ISAC) National Research Council of Italy Istituto di Scienze dell'Atmosfera e del Clima Lecce (ISAC) Alaska Department of Environmental Conservation (ADEC) Vienna (Austria), Austria 2023-04-23 https://insu.hal.science/insu-04135389 https://doi.org/10.5194/egusphere-egu23-6258 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.5194/egusphere-egu23-6258 insu-04135389 https://insu.hal.science/insu-04135389 doi:10.5194/egusphere-egu23-6258 EGU General Assembly 2023 https://insu.hal.science/insu-04135389 EGU General Assembly 2023, Apr 2023, Vienna (Austria), Austria. pp.EGU23-6258, ⟨10.5194/egusphere-egu23-6258⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/conferenceObject Conference papers 2023 ftmeteofrance https://doi.org/10.5194/egusphere-egu23-6258 2024-04-18T00:23:02Z International audience Local air pollution sources in the Arctic lead to poor air quality in Arctic cities, particularly during the winter months. Fairbanks in central Alaska, is a prime example of such an Arctic city which suffers from acute wintertime pollution episodes. The topography of Fairbanks (situated in a basin), coupled with strong surface-based temperature inversions, contributes to stable meteorological conditions that hinder the dispersion of pollutants and surface temperatures reaching -40 °C. These harsh winter conditions result in enhanced domestic and power plant combustion emissions. Stable meteorological regimes are frequently interspersed with less stable episodes, resulting in vertical mixing between surface and elevated inversion layers. However, there are many uncertainties in our understanding about pollution sources and secondary aerosol formation under cold, dark winter conditions, where photochemistry is limited. These issues were addressed through the collection of comprehensive datasets on atmospheric composition and meteorology in Fairbanks, during the international ALPACA (Alaskan Layered Pollution and Chemical Analysis) field campaign in January and February 2022. Data were collected at the surface and vertical profiles were collected using a tethered balloon (EPFL Helikite).Here, we examine the relative contributions and distributions of power plant emissions, emitted above the surface, and surface emission sources to pollution levels in the Fairbanks region. The FLEXPART-Weather Research and Forecasting (WRF) Lagrangian particle dispersion model, driven by meteorological fields from WRF-Environmental Protection Agency (EPA, Alaska) simulations is deployed. Firstly, model runs are used to evaluate the transport and dispersion of emissions from power plants at several altitudes in and around Fairbanks. Surface-based and elevated temperature inversions, characteristic of the winter boundary layer in Fairbanks, are considered in a parameterisation of power plant plume injection ... Conference Object Arctic Alaska Météo-France: HAL Arctic Fairbanks |