Search Results - "Siour, G."

CHIMERE 2013: a model for regional atmospheric composition modelling by Menut, L, Bessagnet, B, Khvorostyanov, D, Beekmann, M, Blond, N, Colette, A, Coll, I, Curci, G, Foret, G, Hodzic, A, Mailler, S, Meleux, F, Monge, J.-L, Pison, I, Siour, G, Turquety, S, Valari, M, Vautard, R, Vivanco, M. G

“…Tropospheric trace gas and aerosol pollutants have adverse effects on health, environment and climate. In order to quantify and mitigate such effects, a wide…”
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Study of the unknown HONO daytime source at a European suburban site during the MEGAPOLI summer and winter field campaigns by Michoud, V, Colomb, A, Borbon, A, Miet, K, Beekmann, M, Camredon, M, Aumont, B, Perrier, S, Zapf, P, Siour, G, Ait-Helal, W, Afif, C, Kukui, A, Furger, M, Dupont, J. C, Haeffelin, M, Doussin, J. F

“…Nitrous acid measurements were carried out during the MEGAPOLI summer and winter field campaigns at SIRTA observatory in Paris surroundings. Highly variable…”
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Volatile and intermediate volatility organic compounds in suburban Paris: variability, origin and importance for SOA formation by Ait-Helal, W, Borbon, A, Sauvage, S, de Gouw, J. A, Colomb, A, Gros, V, Freutel, F, Crippa, M, Afif, C, Baltensperger, U, Beekmann, M, Doussin, J.-F, Durand-Jolibois, R, Fronval, I, Grand, N, Leonardis, T, Lopez, M, Michoud, V, Miet, K, Perrier, S, Prévôt, A. S. H, Schneider, J, Siour, G, Zapf, P, Locoge, N

“…Measurements of gaseous and particulate organic carbon were performed during the MEGAPOLI experiments, in July 2009 and January–February 2010, at the SIRTA…”
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Source contributions to 2012 summertime aerosols in the Euro-Mediterranean region by Rea, G, Turquety, S, Menut, L, Briant, R, Mailler, S, Siour, G

“…In the Mediterranean area, aerosols may originate from anthropogenic or natural emissions (biogenic, mineral dust, fire and sea salt) before undergoing complex…”
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A 3 °C global RCP8.5 emission trajectory cancels benefits of European emission reductions on air quality by Fortems-Cheiney, A., Foret, G., Siour, G., Vautard, R., Szopa, S., Dufour, G., Colette, A., Lacressonniere, G., Beekmann, M.

“…Despite the international agreement to reduce global warming to below 2 °C, the Intended Nationally Determined Contributions submitted for the COP21 would lead…”
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Prediction and forecast of surface wind using ML tree-based algorithms by ElTaweel, M. H., Alfaro, S. C., Siour, G., Coman, A., Robaa, S. M., Wahab, M. M. Abdel

“…This study focuses on the importance of reliable surface wind forecasts for various sectors, particularly energy production. Traditional numerical weather…”
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Radical budget analysis in a suburban European site during the MEGAPOLI summer field campaign by Michoud, V, Kukui, A, Camredon, M, Colomb, A, Borbon, A, Miet, K, Aumont, B, Beekmann, M, Durand-Jolibois, R, Perrier, S, Zapf, P, Siour, G, Ait-Helal, W, Locoge, N, Sauvage, S, Afif, C, Gros, V, Furger, M, Ancellet, G, Doussin, J. F

“…Chemical Ionisation Mass Spectrometer measurements of hydroxyl radical (OH) and the sum of hydroperoxy and organic peroxy (HO2+RO2) radicals were conducted…”
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The Respective Roles of Wind Speed and Green Vegetation in Controlling Sahelian Dust Emission During the Wet Season by Bergametti, G., Marticorena, B., Rajot, J. L., Siour, G., Féron, A., Gaimoz, C., Coman, A., Chatenet, B., Coulibaly, M., Maman, A., Koné, I., Zakou, A.

“…Based on 10 years of continuous measurements of wind speed, rainfall, and PM10 concentrations (i.e., concentrations of the particulate matter having a diameter…”
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Formation of organic aerosol in the Paris region during the MEGAPOLI summer campaign: evaluation of the volatility-basis-set approach within the CHIMERE model by Zhang, Q. J, Beekmann, M, Drewnick, F, Freutel, F, Schneider, J, Crippa, M, Prevot, A. S. H, Baltensperger, U, Poulain, L, Wiedensohler, A, Sciare, J, Gros, V, Borbon, A, Colomb, A, Michoud, V, Doussin, J.-F, Denier van der Gon, H. A. C, Haeffelin, M, Dupont, J.-C, Siour, G, Petetin, H, Bessagnet, B, Pandis, S. N, Hodzic, A, Sanchez, O, Honoré, C, Perrussel, O

“…Simulations with the chemistry transport model CHIMERE are compared to measurements performed during the MEGAPOLI (Megacities: Emissions, urban, regional and…”
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Ozone and aerosol tropospheric concentrations variability analyzed using the ADRIMED measurements and the WRF and CHIMERE models by Menut, L, Mailler, S, Siour, G, Bessagnet, B, Turquety, S, Rea, G, Briant, R, Mallet, M, Sciare, J, Formenti, P, Meleux, F

“…During the months of June and July 2013, over the Euro–Mediterranean area, the ADRIMED (Aerosol Direct Radiative Impact on the regional climate in the…”
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On the radiative impact of aerosols on photolysis rates: comparison of simulations and observations in the Lampedusa island during the ChArMEx/ADRIMED campaign by Mailler, S, Menut, L, di Sarra, A. G, Becagli, S, Di Iorio, T, Bessagnet, B, Briant, R, Formenti, P, Doussin, J.-F, Gómez-Amo, J. L, Mallet, M, Rea, G, Siour, G, Sferlazzo, D. M, Traversi, R, Udisti, R, Turquety, S

“…The Mediterranean basin is characterized by large concentrations of aerosols from both natural and anthropogenic sources. These aerosols affect tropospheric…”
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Parameterization of convective transport in the boundary layer and its impact on the representation of the diurnal cycle of wind and dust emissions by Hourdin, F, Gueye, M, Diallo, B, Dufresne, J-L, Escribano, J, Menut, L, Marticorena, B, Siour, G, Guichard, F

“…We investigate how the representation of the boundary layer in a climate model impacts the representation of the near-surface wind and dust emission, with a…”
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Evaluation of receptor and chemical transport models for PM10 source apportionment by Belis, C.A., Pernigotti, D., Pirovano, G., Favez, O., Jaffrezo, J.L., Kuenen, J., Denier van Der Gon, H., Reizer, M., Riffault, V., Alleman, L.Y., Almeida, M., Amato, F., Angyal, A., Argyropoulos, G., Bande, S., Beslic, I., Besombes, J.-L., Bove, M.C., Brotto, P., Calori, G., Cesari, D., Colombi, C., Contini, D., De Gennaro, G., Di Gilio, A., Diapouli, E., El Haddad, I., Elbern, H., Eleftheriadis, K., Ferreira, J., Vivanco, M. Garcia, Gilardoni, S., Golly, B., Hellebust, S., Hopke, P.K., Izadmanesh, Y., Jorquera, H., Krajsek, K., Kranenburg, R., Lazzeri, P., Lenartz, F., Lucarelli, F., Maciejewska, K., Manders, A., Manousakas, M., Masiol, M., Mircea, M., Mooibroek, D., Nava, S., Oliveira, D., Paglione, M., Pandolfi, M., Perrone, M., Petralia, E., Pietrodangelo, A., Pillon, S., Pokorna, P., Prati, P., Salameh, D., Samara, C., Samek, L., Saraga, D., Sauvage, S., Schaap, M., Scotto, F., Sega, K., Siour, G., Tauler, R., Valli, G., Vecchi, R., Venturini, E., Vestenius, M., Waked, A., Yubero, E.

“…In this study, the performance of two types of source apportionment models was evaluated by assessing the results provided by 40 different groups in the…”
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Unaccounted variability in NH3 agricultural sources detected by IASI contributing to European spring haze episode by Fortems‐Cheiney, A., Dufour, G., Hamaoui‐Laguel, L., Foret, G., Siour, G., Van Damme, M., Meleux, F., Coheur, P.‐F., Clerbaux, C., Clarisse, L., Favez, O., Wallasch, M., Beekmann, M.

“…Ammonia (NH3), whose main source in the troposphere is agriculture, is an important gaseous precursor of atmospheric particulate matter (PM). We derived daily…”
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Dust Uplift Potential in the Central Sahel: An Analysis Based on 10 years of Meteorological Measurements at High Temporal Resolution by Bergametti, G., Marticorena, B., Rajot, J. L., Chatenet, B., Féron, A., Gaimoz, C., Siour, G., Coulibaly, M., Koné, I., Maman, A., Zakou, A.

“…A 10 year data set of wind speed and precipitation recorded in two Sahelian stations located in Niger and Mali is used to investigate the duration and the…”
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Improving direct normal irradiance retrieval in cloud-free, but high aerosol load conditions by using aerosol optical depth by Boraiy, M., Korany, M., Aoun, Y., Alfaro, S.C., El-Metwally, M., Abdel Wahab, M.M., Blanc, P., Eissa, Y., Ghedira, H., Siour, G., Hungershoefer, K., Wald, L.

“…Measurements of the global surface solar irradiation and its direct and diffuse components performed at three Egyptian sites (Aswan, Cairo, and Port Said) are…”
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Bridging the scales in a eulerian air quality model to assess megacity export of pollution by Siour, G., Colette, A., Menut, L., Bessagnet, B., Coll, I., Meleux, F.

“…In Chemistry Transport Models (CTMs), spatial scale interactions are often represented through off-line coupling between large and small scale models. However,…”
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The unintended consequence of SO2 and NO2 regulations over China: increase of ammonia levels and impact on PM2.5 concentrations by Lachatre, Mathieu, tems-Cheiney, Audrey, et, Gilles, Siour, Guillaume, Gaëlle Dufour, Lieven Clarisse, Clerbaux, Cathy, Pierre-François Coheur, Martin Van Damme, Beekmann, Matthias

“…Air pollution reaching hazardous levels in many Chinese cities has been a major concern in China over the past decades. New policies have been applied to…”
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Impact of Landes forest fires on air quality in France during the 2022 summer by Menut, Laurent, Cholakian, Arineh, Siour, Guillaume, Lapere, Rémy, Pennel, Romain, Mailler, Sylvain, Bessagnet, Bertrand

“…The atypical huge forest fires observed in France during the summer of 2022 are modeled using the CHIMERE model. The impact of these emissions is quantified on…”
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Modelling SO2 conversion into sulfates in the mid-troposphere with a 3D chemistry transport model: the case of Mount Etna's eruption on 12 April 2012 by Lachatre, Mathieu, Mailler, Sylvain, Menut, Laurent, Cholakian, Arineh, Sellitto, Pasquale, Siour, Guillaume, Guermazi, Henda, Salerno, Giuseppe, Giammanco, Salvatore

“…Volcanic activity is an important source of atmospheric sulfur dioxide (SO2), which, after conversion into sulfuric acid, induces impacts on rain acidity,…”
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