Simulation of fine organic aerosols in the western Mediterranean area during the ChArMEx 2013 summer campaign
The simulation of fine organic aerosols with CTMs (chemistry–transport models) in the western Mediterranean basin has not been studied until recently. The ChArMEx (the Chemistry-Aerosol Mediterranean Experiment) SOP 1b (Special Observation Period 1b) intensive field campaign in summer of 2013 ga...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2018-05-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://www.atmos-chem-phys.net/18/7287/2018/acp-18-7287-2018.pdf |
| _version_ | 1811191859250200576 |
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| author | A. Cholakian A. Cholakian M. Beekmann A. Colette I. Coll G. Siour J. Sciare J. Sciare N. Marchand F. Couvidat J. Pey J. Pey V. Gros S. Sauvage V. Michoud V. Michoud K. Sellegri A. Colomb K. Sartelet H. Langley DeWitt M. Elser M. Elser A. S. H. Prévot S. Szidat F. Dulac |
| author_facet | A. Cholakian A. Cholakian M. Beekmann A. Colette I. Coll G. Siour J. Sciare J. Sciare N. Marchand F. Couvidat J. Pey J. Pey V. Gros S. Sauvage V. Michoud V. Michoud K. Sellegri A. Colomb K. Sartelet H. Langley DeWitt M. Elser M. Elser A. S. H. Prévot S. Szidat F. Dulac |
| author_sort | A. Cholakian |
| collection | DOAJ |
| description | The simulation of fine organic aerosols with
CTMs (chemistry–transport models) in the western Mediterranean basin has not
been studied until recently. The ChArMEx (the Chemistry-Aerosol Mediterranean
Experiment) SOP 1b (Special Observation Period 1b) intensive field campaign
in summer of 2013 gathered a large and comprehensive data set of observations,
allowing the study of different aspects of the Mediterranean atmosphere
including the formation of organic aerosols (OAs) in 3-D models. In this study,
we used the CHIMERE CTM to perform simulations for the duration of the SAFMED
(Secondary Aerosol Formation in the MEDiterranean) period (July to August 2013) of this campaign. In particular, we evaluated four schemes for the
simulation of OA, including the CHIMERE standard scheme, the VBS (volatility
basis set) standard scheme with two parameterizations including aging of
biogenic secondary OA, and a modified version of the VBS scheme which
includes fragmentation and formation of nonvolatile OA. The results from
these four schemes are compared to observations at two stations in the
western Mediterranean basin, located on Ersa, Cap Corse (Corsica, France),
and at Cap Es Pinar (Mallorca, Spain). These observations include OA mass
concentration, PMF (positive matrix factorization) results of different OA
fractions, and <sup>14</sup>C observations showing the fossil or nonfossil origins
of carbonaceous particles. Because of the complex orography of the Ersa site,
an original method for calculating an orographic representativeness error
(ORE) has been developed. It is concluded that the modified VBS scheme is
close to observations in all three aspects mentioned above; the standard VBS
scheme without BSOA (biogenic secondary organic aerosol) aging also has a
satisfactory performance in simulating the mass concentration of OA, but not
for the source origin analysis comparisons. In addition, the OA sources over
the western Mediterranean basin are explored. OA shows a major biogenic
origin, especially at several hundred meters height from the surface; however
over the Gulf of Genoa near the surface, the anthropogenic origin is of
similar importance. A general assessment of other species was performed to
evaluate the robustness of the simulations for this particular domain before
evaluating OA simulation schemes. It is also shown that the Cap Corse site
presents important orographic complexity, which makes comparison between model
simulations and observations difficult. A method was designed to estimate an
orographic representativeness error for species measured at Ersa and yields
an uncertainty of between 50 and 85 % for primary pollutants, and around
2–10 % for secondary species. |
| first_indexed | 2024-04-11T23:44:03Z |
| format | Article |
| id | doaj.art-18883474dc7a4ebfbc11f4c6758da434 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-04-11T23:44:03Z |
| publishDate | 2018-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-18883474dc7a4ebfbc11f4c6758da4342022-12-22T03:56:42ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242018-05-01187287731210.5194/acp-18-7287-2018Simulation of fine organic aerosols in the western Mediterranean area during the ChArMEx 2013 summer campaignA. Cholakian0A. Cholakian1M. Beekmann2A. Colette3I. Coll4G. Siour5J. Sciare6J. Sciare7N. Marchand8F. Couvidat9J. Pey10J. Pey11V. Gros12S. Sauvage13V. Michoud14V. Michoud15K. Sellegri16A. Colomb17K. Sartelet18H. Langley DeWitt19M. Elser20M. Elser21A. S. H. Prévot22S. Szidat23F. Dulac24Laboratoire Inter-Universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil, FranceInstitut National de l'Environnement Industriel et des Risques, Parc Technologique ALATA, Verneuil-en-Halatte, FranceLaboratoire Inter-Universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil, FranceInstitut National de l'Environnement Industriel et des Risques, Parc Technologique ALATA, Verneuil-en-Halatte, FranceLaboratoire Inter-Universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil, FranceLaboratoire Inter-Universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583, Université Paris Est Créteil et Université Paris Diderot, Institut Pierre Simon Laplace, Créteil, FranceLaboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, FranceThe Cyprus Institute, Energy, Environment and Water Research Center, Nicosia, CyprusAix-Marseille Université, CNRS, LCE FRE 3416, Marseille, 13331, FranceInstitut National de l'Environnement Industriel et des Risques, Parc Technologique ALATA, Verneuil-en-Halatte, FranceAix-Marseille Université, CNRS, LCE FRE 3416, Marseille, 13331, Francenow at: the Spanish Geological Survey, IGME, 50006 Zaragoza, SpainLaboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, FranceIMT Lille Douai, Univ. Lille, Département Sciences de l'Atmosphère et Génie de l'Environnement, 59000 Lille, FranceIMT Lille Douai, Univ. Lille, Département Sciences de l'Atmosphère et Génie de l'Environnement, 59000 Lille, Francenow at: Laboratoire Inter-Universitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583, Université Paris Est, FranceLAMP, Campus universitaire des Cezeaux, 4 Avenue Blaise Pascal, 63178 Aubière, FranceLAMP, Campus universitaire des Cezeaux, 4 Avenue Blaise Pascal, 63178 Aubière, FranceCEREA, Joint Laboratory École des Ponts ParisTech – EDF R and D, Université Paris-Est, 77455 Marne la Vallée, FranceAix-Marseille Université, CNRS, LCE FRE 3416, Marseille, 13331, FrancePaul Scherrer Institute, 5232 Villigen – PSI, Switzerlandnow at: Laboratory for Advanced Analytical Technologies, Empa, Dübendorf, 8600, SwitzerlandPaul Scherrer Institute, 5232 Villigen – PSI, SwitzerlandUniversity of Bern, Freiestrasse 3, 3012 Bern, SwitzerlandLaboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, FranceThe simulation of fine organic aerosols with CTMs (chemistry–transport models) in the western Mediterranean basin has not been studied until recently. The ChArMEx (the Chemistry-Aerosol Mediterranean Experiment) SOP 1b (Special Observation Period 1b) intensive field campaign in summer of 2013 gathered a large and comprehensive data set of observations, allowing the study of different aspects of the Mediterranean atmosphere including the formation of organic aerosols (OAs) in 3-D models. In this study, we used the CHIMERE CTM to perform simulations for the duration of the SAFMED (Secondary Aerosol Formation in the MEDiterranean) period (July to August 2013) of this campaign. In particular, we evaluated four schemes for the simulation of OA, including the CHIMERE standard scheme, the VBS (volatility basis set) standard scheme with two parameterizations including aging of biogenic secondary OA, and a modified version of the VBS scheme which includes fragmentation and formation of nonvolatile OA. The results from these four schemes are compared to observations at two stations in the western Mediterranean basin, located on Ersa, Cap Corse (Corsica, France), and at Cap Es Pinar (Mallorca, Spain). These observations include OA mass concentration, PMF (positive matrix factorization) results of different OA fractions, and <sup>14</sup>C observations showing the fossil or nonfossil origins of carbonaceous particles. Because of the complex orography of the Ersa site, an original method for calculating an orographic representativeness error (ORE) has been developed. It is concluded that the modified VBS scheme is close to observations in all three aspects mentioned above; the standard VBS scheme without BSOA (biogenic secondary organic aerosol) aging also has a satisfactory performance in simulating the mass concentration of OA, but not for the source origin analysis comparisons. In addition, the OA sources over the western Mediterranean basin are explored. OA shows a major biogenic origin, especially at several hundred meters height from the surface; however over the Gulf of Genoa near the surface, the anthropogenic origin is of similar importance. A general assessment of other species was performed to evaluate the robustness of the simulations for this particular domain before evaluating OA simulation schemes. It is also shown that the Cap Corse site presents important orographic complexity, which makes comparison between model simulations and observations difficult. A method was designed to estimate an orographic representativeness error for species measured at Ersa and yields an uncertainty of between 50 and 85 % for primary pollutants, and around 2–10 % for secondary species.https://www.atmos-chem-phys.net/18/7287/2018/acp-18-7287-2018.pdf |
| spellingShingle | A. Cholakian A. Cholakian M. Beekmann A. Colette I. Coll G. Siour J. Sciare J. Sciare N. Marchand F. Couvidat J. Pey J. Pey V. Gros S. Sauvage V. Michoud V. Michoud K. Sellegri A. Colomb K. Sartelet H. Langley DeWitt M. Elser M. Elser A. S. H. Prévot S. Szidat F. Dulac Simulation of fine organic aerosols in the western Mediterranean area during the ChArMEx 2013 summer campaign Atmospheric Chemistry and Physics |
| title | Simulation of fine organic aerosols in the western Mediterranean area during the ChArMEx 2013 summer campaign |
| title_full | Simulation of fine organic aerosols in the western Mediterranean area during the ChArMEx 2013 summer campaign |
| title_fullStr | Simulation of fine organic aerosols in the western Mediterranean area during the ChArMEx 2013 summer campaign |
| title_full_unstemmed | Simulation of fine organic aerosols in the western Mediterranean area during the ChArMEx 2013 summer campaign |
| title_short | Simulation of fine organic aerosols in the western Mediterranean area during the ChArMEx 2013 summer campaign |
| title_sort | simulation of fine organic aerosols in the western mediterranean area during the charmex 2013 summer campaign |
| url | https://www.atmos-chem-phys.net/18/7287/2018/acp-18-7287-2018.pdf |
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