Direct radiative effect of the Russian wildfires and its impact on air temperature and atmospheric dynamics during August 2010
International audience In this study, we investigate the shortwave aerosol direct radiative forcing (ADRF) and its feedback on air temperature and atmospheric dynamics during a major fire event that occurred in Russia during August 2010. The methodology is based on an offline coupling between the CH...
Published in: | Atmospheric Chemistry and Physics |
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Main Authors: | , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2014
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Online Access: | https://polytechnique.hal.science/hal-01083242 https://polytechnique.hal.science/hal-01083242/document https://polytechnique.hal.science/hal-01083242/file/acp-14-1999-2014.pdf https://doi.org/10.5194/acp-14-1999-2014 |
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[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
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[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology Péré, J. C. Bessagnet, B. Mallet, M. Waquet, F. Chiapello, I. Minvielle, F. Pont, V. Menut, L. Direct radiative effect of the Russian wildfires and its impact on air temperature and atmospheric dynamics during August 2010 |
topic_facet |
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology |
description |
International audience In this study, we investigate the shortwave aerosol direct radiative forcing (ADRF) and its feedback on air temperature and atmospheric dynamics during a major fire event that occurred in Russia during August 2010. The methodology is based on an offline coupling between the CHIMERE chemistry-transport and the Weather Research and Forecasting (WRF) models. First, simulations for the period 5–12 August 2010 have been evaluated by using AERONET (AErosol RObotic NETwork) and satellite measurements of the POLarization and Directionality of the Earth's Reflectance (POLDER) and the Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP) sensors. During this period, elevated POLDER aerosol optical thickness (AOT) is found over a large part of eastern Europe, with values above 2 (at 550 nm) in the aerosol plume. According to CALIOP observations, particles remain confined to the first five kilometres of the atmospheric layer. Comparisons with satellite measurements show the ability of CHIMERE to reproduce the regional and vertical distribution of aerosols during their transport from the source region. Over Moscow, AERONET measurements indicate an important increase of AOT (340 nm) from 0.7 on 5 August to 2–4 between 6 and 10 August when the aerosol plume was advected over the city. Particles are mainly observed in the fine size mode (radius in the range 0.2–0.4 μm) and are characterized by elevated single-scattering albedo (SSA) (0.95–0.96 between 440 and 1020 nm). Comparisons of simulations with AERONET measurements show that aerosol physical–optical properties (size distribution, AOT, SSA) have been well simulated over Moscow in terms of intensity and/or spectral dependence. Secondly, modelled aerosol optical properties have been used as input in the radiative transfer code of WRF to evaluate their direct radiative impact. Simulations indicate a significant reduction of solar radiation at the ground (up to 80–150 W m−2 in diurnal averages over a large part of eastern Europe due to the presence ... |
author2 |
Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) Institut National de l'Environnement Industriel et des Risques (INERIS) 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 Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) |
format |
Article in Journal/Newspaper |
author |
Péré, J. C. Bessagnet, B. Mallet, M. Waquet, F. Chiapello, I. Minvielle, F. Pont, V. Menut, L. |
author_facet |
Péré, J. C. Bessagnet, B. Mallet, M. Waquet, F. Chiapello, I. Minvielle, F. Pont, V. Menut, L. |
author_sort |
Péré, J. C. |
title |
Direct radiative effect of the Russian wildfires and its impact on air temperature and atmospheric dynamics during August 2010 |
title_short |
Direct radiative effect of the Russian wildfires and its impact on air temperature and atmospheric dynamics during August 2010 |
title_full |
Direct radiative effect of the Russian wildfires and its impact on air temperature and atmospheric dynamics during August 2010 |
title_fullStr |
Direct radiative effect of the Russian wildfires and its impact on air temperature and atmospheric dynamics during August 2010 |
title_full_unstemmed |
Direct radiative effect of the Russian wildfires and its impact on air temperature and atmospheric dynamics during August 2010 |
title_sort |
direct radiative effect of the russian wildfires and its impact on air temperature and atmospheric dynamics during august 2010 |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://polytechnique.hal.science/hal-01083242 https://polytechnique.hal.science/hal-01083242/document https://polytechnique.hal.science/hal-01083242/file/acp-14-1999-2014.pdf https://doi.org/10.5194/acp-14-1999-2014 |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://polytechnique.hal.science/hal-01083242 Atmospheric Chemistry and Physics Discussions, 2014, 14 (4), pp.1999-2013. ⟨10.5194/acp-14-1999-2014⟩ |
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info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/acp-14-1999-2014 |
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Atmospheric Chemistry and Physics |
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1999 |
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ftsorbonneuniv:oai:HAL:hal-01083242v1 2024-09-15T17:35:19+00:00 Direct radiative effect of the Russian wildfires and its impact on air temperature and atmospheric dynamics during August 2010 Péré, J. C. Bessagnet, B. Mallet, M. Waquet, F. Chiapello, I. Minvielle, F. Pont, V. Menut, L. Laboratoire d’Optique Atmosphérique - UMR 8518 (LOA) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) Institut National de l'Environnement Industriel et des Risques (INERIS) 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 Météorologie Dynamique (UMR 8539) (LMD) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL) 2014 https://polytechnique.hal.science/hal-01083242 https://polytechnique.hal.science/hal-01083242/document https://polytechnique.hal.science/hal-01083242/file/acp-14-1999-2014.pdf https://doi.org/10.5194/acp-14-1999-2014 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/acp-14-1999-2014 hal-01083242 https://polytechnique.hal.science/hal-01083242 https://polytechnique.hal.science/hal-01083242/document https://polytechnique.hal.science/hal-01083242/file/acp-14-1999-2014.pdf doi:10.5194/acp-14-1999-2014 info:eu-repo/semantics/OpenAccess ISSN: 1680-7367 EISSN: 1680-7375 Atmospheric Chemistry and Physics Discussions https://polytechnique.hal.science/hal-01083242 Atmospheric Chemistry and Physics Discussions, 2014, 14 (4), pp.1999-2013. ⟨10.5194/acp-14-1999-2014⟩ [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology info:eu-repo/semantics/article Journal articles 2014 ftsorbonneuniv https://doi.org/10.5194/acp-14-1999-2014 2024-08-01T23:46:54Z International audience In this study, we investigate the shortwave aerosol direct radiative forcing (ADRF) and its feedback on air temperature and atmospheric dynamics during a major fire event that occurred in Russia during August 2010. The methodology is based on an offline coupling between the CHIMERE chemistry-transport and the Weather Research and Forecasting (WRF) models. First, simulations for the period 5–12 August 2010 have been evaluated by using AERONET (AErosol RObotic NETwork) and satellite measurements of the POLarization and Directionality of the Earth's Reflectance (POLDER) and the Cloud-Aerosol LIdar with Orthogonal Polarization (CALIOP) sensors. During this period, elevated POLDER aerosol optical thickness (AOT) is found over a large part of eastern Europe, with values above 2 (at 550 nm) in the aerosol plume. According to CALIOP observations, particles remain confined to the first five kilometres of the atmospheric layer. Comparisons with satellite measurements show the ability of CHIMERE to reproduce the regional and vertical distribution of aerosols during their transport from the source region. Over Moscow, AERONET measurements indicate an important increase of AOT (340 nm) from 0.7 on 5 August to 2–4 between 6 and 10 August when the aerosol plume was advected over the city. Particles are mainly observed in the fine size mode (radius in the range 0.2–0.4 μm) and are characterized by elevated single-scattering albedo (SSA) (0.95–0.96 between 440 and 1020 nm). Comparisons of simulations with AERONET measurements show that aerosol physical–optical properties (size distribution, AOT, SSA) have been well simulated over Moscow in terms of intensity and/or spectral dependence. Secondly, modelled aerosol optical properties have been used as input in the radiative transfer code of WRF to evaluate their direct radiative impact. Simulations indicate a significant reduction of solar radiation at the ground (up to 80–150 W m−2 in diurnal averages over a large part of eastern Europe due to the presence ... Article in Journal/Newspaper Aerosol Robotic Network HAL Sorbonne Université Atmospheric Chemistry and Physics 14 4 1999 2013 |