Alma Roux

Scientist III

Atmospheric Chemistry Observations & Modeling Lab

Information

Bio

I am currently working as a Scientist III at the NCAR Atmospheric Chemistry Observation and Modeling laboratory on air quality modeling. In particular, my research is aimed at understanding and improving the representation of atmospheric aerosols, and their retroactions on regional photochemistry and meteorology. My work has led to significant insights into the sources, formation and removal pathways of organic aerosols, which are not only toxic pollutants but are also one of the major sources of uncertainty in climate models. The fundamental challenge in organic aerosol research is the range of scales that has to be considered: from molecular scales at which hundreds of thousand of chemical reactions occur, to urban scales relevant to air quality, to regional and global scales relevant to climate change. Thus, I have been using explicit chemical models such as GECKO-A that focus on the molecular scale to identify and develop fundamental insights on processes that are important in controlling the distribution and characteristics of organic aerosols, and to develop computationally-efficient representations of these processes for inclusion in larger-scale regional, and global models. I contribute to the development and evaluation of community models used for chemical weather predictions (WRF-Chem), climate (CAM-Chem), and process modeling studies (GECKO-A).

I obtained my Ph.D. in October 2005 from the Ecole Polytechnique in France where I worked in the Laboratory of Dynamic Meteorology with Dr. Vautard on air quality and aerosol modelling at the urban scale. Then for 2 years (until December 2007) I was a postdoctoral student in the Advanced Studies Program at NCAR working on modeling of aerosol properties and processes in highly polluted conditions such as wildfires and megacities.

Publications

Papers Submitted for Peer-Review

Hodzic A., Kasibhatla P.S., Jo D.S., Cappa C., Madronich S., Park R.J., 2015. Rethinking the global secondary organic aerosol (SOA) budget: stronger production, faster removal, shorter lifetime, submitted to Atmos. Chem. Phys. Discuss., 15, 32413-32468, doi:10.5194/acpd-15-32413-2015.

Published

La, Y.S., Camredon, M., Ziemann, P.J., Valorso, R., Matsunaga, A., Lannuque, V., Lee-Taylor, J., Hodzic, A., Madronish, S., and B. Aumont, Impact of chamber wall loss of gaseous organic compounds on secondary organic aerosol formation: explicit modeling of SOA formation from alkane and alkene oxidation, Atmos. Chem. Phys 16 (3), 1417-1431, 2016. (http://www.atmos-chem-phys.net/16/1417/2016/acp-16-1417-2016.pdf)
Madronich S., Conley A., Lee-Taylor J., Kleinman L., Hodzic A. and Aumont B., Non-Linear Partitioning and Organic Volatility Distributions of Urban Aerosols, Faraday Discuss., DOI: 10.1039/C5FD00209E, 2015.
Hodzic A., Madronich S., Kasibhatla P. S., Tyndall G., Aumont B., Jimenez J. L., Lee-Taylor J., and Orlando J.: Organic photolysis reactions in tropospheric aerosols: effect on secondary organic aerosol formation and lifetime, Atmos. Chem. Phys., 15, 9253-9269, doi:10.5194/acp-15-9253-2015, 2015. (http://www.atmos-chem-phys.net/15/9253/2015/acp-15-9253-2015.pdf)
Lupascu, A., Easter, R., Zaveri, R., Shrivastava, M., Pekour, M., Tomlinson, J., Yang, Q., Matsui, H., Hodzic, A., Zhang, Q., and Fast, J. D.: Modeling particle nucleation and growth over northern California during the 2010 CARES campaign, Atmos. Chem. Phys., 15, 12283-12313, doi:10.5194/acp-15-12283-2015, 2015.
He, J., Zhang, Y., Tilmes, S., Emmons, L., Lamarque, J.-F., Glotfelty, T., Hodzic, A., and Vitt, F., 2015. CESM/CAM5 improvement and application: comparison and evaluation of updated CB05_GE and MOZART-4 gas-phase mechanisms and associated impacts on global air quality and climate, Geosci. Model Dev., 8, 3999-4025, doi:10.5194/gmd-8-3999-2015, 2015.
Zheng, Y., Unger, N., Hodzic, A., Emmons, L., Knote, C., Tilmes, S., Lamarque, J.F., and Yu, P., 2015. Limited effect of anthropogenic nitrogen oxides on secondary organic aerosol formation, Atmos. Chem. Phys., 15, 13487-13506, doi:10.5194/acp-15-13487-2015. (http://www.atmos-chem-phys.net/15/13487/2015/acp-15-13487-2015.pdf)
Knote, C., Hodzic, A., and Jimenez, J. L.: The effect of dry and wet deposition of condensable vapors on secondary organic aerosols concentrations over the continental US, Atmos. Chem. Phys., 15, 1-18, 2015.
Lee-Taylor J., Hodzic A., Madronich S., Aumont B., Camredon M., Valorso R.: Multiday growth of condensing organic aerosol mass in urban and forest outflow, Atmos. Chem. Phys., 15, 595-615, 2015.
Im U., Bianconi R., Solazzo E., Kioutsioukis I., Badia A., Balzarini A., Brunner D., Chemel C., Curci G., Davis L, Denier van der Gon H., Esteban R.B., Flemming J., Forkel R., Giordano L., Jimenez Geurro P., Hirtl M., Hodzic A., Honzak L., Jorba O., Knote C., Kuenen J.P., Makar P., Manders-Groot A., Piravano G., Pouliot G., San Jose R., Savage N., Schroder W., Syrakov D., Torian A., Werhahn J., Wolke R., Yahya K., Zakbar R., Zhang Y., Hogrefe C., Galmarini S.: Evaluation of operational online-coupled regional air quality models over Europe and North America in the context of AQMEII phase 2. Part I: Ozone, Atmos. Environ.., 115, pp. 404-420, doi:10.1016/j.atmosenv.2014.09.042, 2015.
Im U., Bianconi R., Solazzo E., Kioutsioukis I., Badia A., Balzarini A., Brunner D., Chemel C., Curci G., Davis L, Denier van der Gon H., Esteban R.B., Flemming J., Forkel R., Giordano L., Jimenez Geurro P., Hirtl M., Hodzic A., Honzak L., Jorba O., Knote C., Kuenen J.P., Makar P., Manders-Groot A., Piravano G., Pouliot G., San Jose R., Savage N., Schroder W., Syrakov D., Torian A., Werhahn J., Wolke R., Yahya K., Zakbar R., Zhang Y., Hogrefe C., Galmarini S.: Evaluation of operational online-coupled regional air quality models over Europe and North America in the context of AQMEII phase 2. Part II: Particulate Matter, Atmos. Environ., 115, pp. 421–441, doi:10.1016/j.atmosenv.2014.08.072, 2015.
Campbell P., Zhang Y., Yahya K., Wang K., Hogrefe C., Pouliot G., Knote C., Hodzic A., San Jose R., Perez J.L., Jimenez-Guerrero P., Baro R., Makar P.: A multi-model assessment for the 2006 and 2010 simulations under the air quality model evaluation international initiative (AQMEII) phase 2 over North America: part I. Indicators of the sensitivity of O3 and PM2.5 formation regimes, Atmos. Environ., 115, pp. 569–586, 2015.
Brunner D., N. Savage, O. Jorba, B. Eder, L. Giordano, A. Badia, A. Balzarini, Rocio Baro, R. Bianconi, C. Chemel, R. Forkel, P. Jimenez-Guerrero, M. Hirtl, A. Hodzic, L. Honzak, U. Im, C. Knote, J.J.P. Kuensen, P.A. Makar, A. Manders-Groot, L. Neal, J.L. Perez, G. Pirovano, R. San Jose, W. Schroder, R.S. Sokhi, D. Syrakov, A. Torian, J. Werhahn, R. Wolke, E. van Meijgaard, K. Yahya, R. Zabkar, Y. Zhang, C. Hogrefe, S. Galmarini,: Comparative analysis of meteorological performance of coupled chemistry-meteorology models in the context of AQMEII phase 2, Atmos. Environ., 115, pp. 470–498, 2015.
Giordano L., Brunner D., Flemming J., Im U., Hogrefe C., Bianconi R., Badia A., Balzarini A., Baro R., Chemel C., Curci G., Forkel R., Jimenez-Guerrero P., Hirtl M., Hodzic A., Honzak L., Jorba O., Knote C., Kuenen J.J.P., Makar P.A., Manders-Groot A., Neal L., Perez J.L., Pirovano G., Pouliot G., San Jose R., Savage N., Schroder W., Sokhi R.S., Syrakov D., Torian A., Werhahn J., Wolke R., Yahya K., Zabkar R., Zhang Y., Galmarini S.: Assessment of the MACC reanalysis and its influence as chemical boundary conditions for regional air quality modeling in AQMEII-2, Atmos. Environ., 115, pp. 371–388, 2015.
Hodzic A., Aumont B., Knote C., Lee-Taylor J., Madronich S., Tyndall G.: Volatility Dependence of Henry's Law Constants Of Condensable Organics: Application to Estimate Depositional Loss of Secondary Organic Aerosols, Geophys. Res. Lett., 41, 13, 4795-4804, doi: 10.1002/2014GL060649, 2014. (http://onlinelibrary.wiley.com/doi/10.1002/2014GL060649/epdf)
Knote, C., Hodzic, A., Jimenez, J. L., Volkamer, R., Orlando, J. J., Baidar, S., Brioude, J., Fast, J., Gentner, D. R., Goldstein, A. H., Hayes, P. L., Knighton, W. B., Oetjen, H., Setyan, A., Stark, H., Thalman, R., Tyndall, G., Washenfelder, R., Waxman, E., and Zhang, Q.: Simulation of semi-explicit mechanisms of SOA formation from glyoxal in aerosol in a 3-D model, Atmos. Chem. Phys., 14, 6213-6239, doi:10.5194/acp-14-6213-2014, 2014.
Cui Y., Hodzic A., Smith J., Ortega J., Brioude J., Matsui H., Levin E.J.T., Turnipseed A., de Foy B.: Modeling ultrafine particle growth at a pine forest site influenced by anthropogenic pollution during BEACHON-RoMBAS 2011, Atmos. Chem. Phys., 14, 11011-11029, 2014.
Tsigaridis, K., Daskalakis, N., Kanakidou, M., Adams, P. J., Artaxo, P., Bahadur, R., Balkanski, Y., Bauer, S. E., Bellouin, N., Benedetti, A., Bergman, T., Berntsen, T. K., Beukes, J. P., Bian, H., Carslaw, K. S., Chin, M., Curci, G., Diehl, T., Easter, R. C., Ghan, S. J., Gong, S. L., Hodzic, A., Hoyle, C. R., Iversen, T., Jathar, S., Jimenez, J. L., Kaiser, J. W., Kirkevåg, A., Koch, D., Kokkola, H., Lee, Y. H., Lin, G., Liu, X., Luo, G., Ma, X., Mann, G. W., Mihalopoulos, N., Morcrette, J.-J., Müller, J.-F., Myhre, G., Myriokefalitakis, S., Ng, S., O'Donnell, D., Penner, J. E., Pozzoli, L., Pringle, K. J., Russell, L. M., Schulz, M., Sciare, J., Seland, Ø., Shindell, D. T., Sillman, S., Skeie, R. B., Spracklen, D., Stavrakou, T., Steenrod, S. D., Takemura, T., Tiitta, P., Tilmes, S., Tost, H., van Noije, T., van Zyl, P. G., von Salzen, K., Yu, F., Wang, Z., Wang, Z., Zaveri, R. A., Zhang, H., Zhang, K., Zhang, Q., and Zhang, X., 2014. The AeroCom evaluation and intercomparison of organic aerosol in global models, Atmos. Chem. Phys., 14, 10845-10895, doi:10.5194/acp-14-10845-2014.
Wang, K., Yahya, K., Zhang, Y., Hogrefe, C., Pouliot, G., Knote, C., Hodzic, A., San Jose, R., Perez, J.L, Jiménez-Guerrero, P., Baro, R., Makar, P., Bennartz, R..: A multi-model assessment for the 2006 and 2010 simulations under the Air Quality Model Evaluation International Initiative (AQMEII) Phase 2 over North America: Part II. Evaluation of column variable predictions using satellite data, Atmos. Environ., in press 1352-2310, doi:10.1016/j.atmosenv.2014.07.044, 2014.
Fast, J. D., Allan, J., Bahreini, R., Craven, J., Emmons, L., Ferrare, R., Hayes, P. L., Hodzic, A., Holloway, J., Hostetler, C., Jimenez, J. L., Jonsson, H., Liu, S., Liu, Y., Metcalf, A., Middlebrook, A., Nowak, J., Pekour, M., Perring, A., Russell, L., Sedlacek, A., Seinfeld, J., Setyan, A., Shilling, J., Shrivastava, M., Springston, S., Song, C., Subramanian, R., Taylor, J. W., Vinoj, V., Yang, Q., Zaveri, R. A., and Zhang, Q., 2014. Modeling regional aerosol variability over California and its sensitivity to emissions and long-range transport during the 2010 CalNex and CARES campaigns, Atmos. Chem. Phys., 14, 10013-10060, doi:10.5194/acp-14-10013-2014.
Ortega, J., Turnipseed, A., Guenther, A. B., Karl, T. G., Day, D. A., Gochis, D., Huffman, J. A., Prenni, A. J., Levin, E. J. T., Kreidenweis, S. M., DeMott, P. J., Tobo, Y., Patton, E. G., Hodzic, A., Cui, Y. Y., Harley, P. C., Hornbrook, R. S., Apel, E. C., Monson, R. K., Eller, A. S. D., Greenberg, J. P., Barth, M. C., Campuzano-Jost, P., Palm, B. B., Jimenez, J. L., Aiken, A. C., Dubey, M. K., Geron, C., Offenberg, J., Ryan, M. G., Fornwalt, P. J., Pryor, S. C., Keutsch, F. N., DiGangi, J. P., Chan, A. W. H., Goldstein, A. H., Wolfe, G. M., Kim, S., Kaser, L., Schnitzhofer, R., Hansel, A., Cantrell, C. A., Mauldin, R. L., and Smith, J. N.: Overview of the Manitou Experimental Forest Observatory: site description and selected science results from 2008 to 2013, Atmos. Chem. Phys., 14, 6345-6367, doi:10.5194/acp-14-6345-2014, 2014.
Yatavelli R.L.N., Stark H., Thompson S.L., Kimmel J.R., Cubison M.J., Day D.A., Campuzano-Jost P., Palm B.B., Hodzic A., Thornton J.A., Jayne J.T, Worsnop D.R., and Jimenez J.L., Semicontinuous measurements of gas–particle partitioning of organic acids in a ponderosa pine forest using a MOVI-HRToF-CIMS, Atmos. Chem. Phys., 14, 1527-1546, 2014.
Hodzic A., Madronich S., Aumont B., Lee-Taylor J., Karl T., Camredon M. and Mouchel-Vallon C., Limited influence of dry deposition of semi-volatile organic vapors on secondary organic aerosol formation in the urban plume, Geophys. Res. Lett., vol. 40, 3302–3307, doi:10.1002/grl.50611, 2013.
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., and Vivanco, M. G.: CHIMERE 2013: a model for regional atmospheric composition modelling, Geosci. Model Dev., 6, 981-1028, doi:10.5194/gmd-6-981-2013, 2013.
Fry, J. L., Draper, D. C., Zarzana, K. J., Campuzano-Jost, P., Day, D. A., Jimenez, J. L., Brown, S. S., Cohen, R. C., Kaser, L., Hansel, A., Cappellin, L., Karl, T., Hodzic Roux, A., Turnipseed, A., Cantrell, C., Lefer, B. L., and Grossberg, N.: Observations of gas- and aerosol-phase organic nitrates at BEACHON-RoMBAS 2011, Atmos. Chem. Phys. Discuss., 13, 1979-2034, doi:10.5194/acpd-13-1979-2013, accepted in Atmos. Chem. Phys. 2013.
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., and Perrussel, O.: Formation of organic aerosol in the Paris region during the MEGAPOLI summer campaign: evaluation of the volatility-basis-set approach within the CHIMERE model, Atmos. Chem. Phys., 13, 5767-5790, doi:10.5194/acp-13-5767-2013, 2013.
Barth, M. C., Lee, J., Hodzic, A., Pfister, G., Skamarock, W. C., Worden, J., Wong, J., and Noone, D.: Thunderstorms and upper troposphere chemistry during the early stages of the 2006 North American Monsoon, Atmos. Chem. Phys., 12, 11003-11026, doi:10.5194/acp-12-11003-2012, 2012.
Hodzic A., Wiedinmyer C., Salcedo D., Jimenez J.L., Impact of Trash Burning on Air Quality in Mexico City, Environ. Sci. Technol., doi: 10.1021/es203954r, 2012.
Hodzic A. and Jimenez, J. L.: Modeling anthropogenically controlled secondary organic aerosols in a megacity: a simplified framework for global and climate models, Geosci. Model. Dev., 4, 901-917, doi:10.5194/gmd-4-901-2011, 2011.
Lee-Taylor J., S. Madronich, B. Aumont, M. Camredon, A. Hodzic, G. S. Tyndall, E. Apel, and R. A. Zaveri, Explicit modeling of organic chemistry and secondary organic aerosol partitioning for Mexico City and its outflow plume, Atmos. Chem. Phys., 11, 13219-13241, 2011.
Shrivastava M., Fast J., Easter R., Gustafson W.I., Zaveri R.A., Jimenez J.L., Saide P., and Hodzic A., Modeling Organic Aerosols in a Megacity: Comparison of Simple and Complex Representations of the Volatility Basis Set Approach. Atmos. Chem. Phys., 11, 6639-6662, 2011.
Hodzic A., Jimenez J.L., Prevot A.S.H., Szidat. S., Fast J.D., Madronich S., Can 3D Models Explain the Observed Fractions of Fossil and non-Fossil Carbon In and Near Mexico City? Atmos. Chem. Phys., 10, 10997-11016, doi:10.5194/acp-10-10997-2010, 2010.
Hodzic, A., J. L. Jimenez, S. Madronich, M. R. Canagaratna, P. F. DeCarlo, L. Kleinman, and J. Fast, Modeling organic aerosols in a megacity: potential contribution of semi-volatile and intermediate volatility primary organic compounds to secondary organic aerosol formation, Atmos. Chem. Phys., 10, 5491-5514, 2010.
Hodzic A., Jimenez JL., Madronich S., et al., Modeling organic aerosols during MILAGRO: importance of biogenic secondary organic aerosols, Atmos. Chem. Phys., 9, 6949-6981, 2009.
Fast J.D. A. C. Aiken, J. Allan, L. Alexander, T. Campos, M. R. Canagaratna, E. Chapman, P. F. DeCarlo, B. de Foy, J. Gaffney, J. de Gouw, J. C. Doran, L. Emmons, A. Hodzic, S. C. Herndon, et al., Evaluating simulated primary anthropogenic and biomass burning organic aerosols during MILAGRO: implications for assessing treatments of secondary organic aerosols, Atmos. Chem. Phys., 9, 6191-6215, 2009.
Karl T., Apel E., Hodzic A., et al., Emissions of volatile organic compounds inferred from airborne flux measurements over a megacity, Atmos. Chem. Phys., 9, 271-285, 2009.
Bessagnet B., Menut L., Curci G., Hodzic A., et al., Regional modeling of carbonaceous aerosol over Europe - Focus on Secondary Organic Aerosols, J. of Atmos. Chem., 61, 175-202, 2008.
Stern R, Builtjes P, Schaap M, Timmermans R, Vautard R, Hodzic A, Memmesheimer M, et al., A model inter-comparison study focusing on episodes with elevated PM10 concentrations, Atmos. Environ., 42 (19), 4567-4588, 2008.
Hodzic A, Madronich S, Bohn B, et al., Wildfire particulate matter in Europe during summer 2003: meso-scale modeling of smoke emissions, transport and radiative effects, Atmos. Chem. Phys., 7 (15), 4043-4064, 2007.
Cuvelier C, Thunis P, Vautard R, Amann M, Bessagnet B, Bedogni M, Berkowicz R, Brandt J, Brocheton F, Builtjes P, Carnavale C, Coppalle A, Denby B, Douros J, Graf A, Hellmuth O, Hodzic A, Honore C, et al., CityDelta: A model intercomparison study to explore the impact of emission reductions in European cities in 2010, Atmos. Environ., 41 (1), 189-207, 2007.
Salameh T, Drobinski P, Menut L, Bessagnet B, Flamant C, Hodzic A, Vautard R., Aerosol distribution over the western Mediterranean basin during a Tramontane/Mistral event, Annales Geophysicae, 25 (11), 2271-2291, 2007.
Vautard R., Beekmann M., Desplat J., Hodzic A., Morel S., Air quality in Europe during the summer of 2003 as a prototype of air quality in a warmer climate, Comptes Rendus Geoscience, 339, 11-12, 2007.
Hodzic A., Vautard R., Chazette P., Menut L., Bessagnet B., Aerosol chemical and optical properties over the Paris area within ESQUIF project, Atmos. Chem. Phys., 6, 3257-3280, 2006.
Hodzic A., Vautard R., et al., Evolution of aerosol optical thickness over Europe during the August 2003 heat wave as seen from POLDER data and CHIMERE model simulations, Atmos. Chem. Phys., 6, 2006.
Hodzic A., Bessagnet B., Vautard R., A model evaluation of coarse-mode nitrate heterogeneous formation on dust particles, Atmos. Environ., 40 (22), 4158-4171, 2006.
Hodzic A., Vautard R., Bessagnet B., Lattuati M., Moreto F., Long-term urban aerosol simulation versus routine particulate matter observations, Atmos. Environ., 39, 5851-5864, 2005.
Bessagnet B., Hodzic A., Blanchard O., et al., Origin of particulate matter pollution episodes in wintertime over the Paris Basin, Atmos. Environ., 39, 6159-6175, 2005.
Haeffelin M, Barthes L, Bock O, Boitel C, Bony S, Bouniol D, Chepfer H, Chiriaco M, Cuesta J, Delanoe J, Drobinski P, Dufresne JL, Flamant C, Grall M, Hodzic A, Hourdin F, Lapouge R, Lemaitre Y, Mathieu A, Morille Y, Naud C, Noel V, O'Hirok W, Pelon J, Pietras C, Protat A, Romand B, Scialom G, Vautard R, SIRTA, a ground-based atmospheric observatory for cloud and aerosol research, Annales Geophysicae, 23 (2), 253-275, 2005.
Hodzic A., Chepfer H., Vautard R., et al., Comparison of aerosol chemistry-transport model simulations with lidar and sun-photometer observations at a site near Paris, J. Geophys. Res., 109, 2004.
Bessagnet B, Hodzic A, Vautard R, et al., Aerosol modeling with CHIMERE - preliminary evaluation at the continental scale, Atmos. Environ., 38 (18), 2803-2817, 2004.

Other publications and presentations through OpenSky data base (not up to date)

Publications and Presentations (83)
Title	Source	Date
Global health and climate effects of organic aerosols from different sources	Environmental Science & Technology	2023-09-19
Toward emulating an explicit organic chemistry mechanism with random forest models	Journal of Geophysical Research: Atmospheres	2023-05-27
A scheme for representing aromatic secondary organic aerosols in chemical transport models: Application to source attribution of organic aerosols over South Korea during the KORUS‐AQ campaign	Journal of Geophysical Research: Atmospheres	2023-04-27
Neural network emulation of the formation of organic aerosols based on the explicit GECKO‐A chemistry model	Journal of Advances in Modeling Earth Systems	2022-10-18
Acceleration of the southern African easterly jet driven by the radiative effect of biomass burning aerosols and its impact on transport during AEROCLO-sA	Atmospheric Chemistry and Physics	2022-07-05
The NASA Atmospheric Tomography (ATom) Mission: Imaging the chemistry of the global atmosphere	Bulletin of the American Meteorological Society	2022-03-01
Evaluation of Secondary Organic Aerosol (SOA) simulations for Seoul, Korea	Journal of Advances in Modeling Earth Systems	2022-02-01
Chemical transport models often underestimate inorganic aerosol acidity in remote regions of the atmosphere	Communications Earth & Environment	2021-12-14
Technical note: AQMEII4 Activity 1 - Evaluation of wet and dry deposition schemes as an integral part of regional-scale air quality models	Atmospheric Chemistry and Physics	2021-10-20
Secondary organic aerosols from anthropogenic volatile organic compounds contribute substantially to air pollution mortality	Atmospheric Chemistry and Physics	2021-07-27
Recent decreasing trends in surface PM2.5 over East Asia in the winter-spring season: Different responses to emissions and meteorology between upwind and downwind regions	Aerosol and Air Quality Research	2021-06-01
Aerosol pH indicator and organosulfate detectability from aerosol mass spectrometry measurements	Atmospheric Measurement Techniques	2021-03-23
Future changes in isoprene-epoxydiol-derived secondary organic aerosol (IEPOX SOA) under the Shared Socioeconomic Pathways: The importance of physicochemical dependency	Atmospheric Chemistry and Physics	2021-03-05
Interferences with aerosol acidity quantification due to gas-phase ammonia uptake onto acidic sulfate filter samples	Atmospheric Measurement Techniques	2020-11-19
The Multi-Scale Infrastructure for Chemistry and Aerosols (MUSICA)	Bulletin of the American Meteorological Society	2020-10-01
A novel ensemble design for probabilistic predictions of fine particulate matter over the contiguous United States (CONUS)	Journal of Geophysical Research: Atmospheres	2020-08-27
Understanding and improving model representation of aerosol optical properties for a Chinese haze event measured during KORUS-AQ	Atmospheric Chemistry and Physics	2020-06-04
Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: explicit modeling of the Manaus urban plume with GECKO-A	Atmospheric Chemistry and Physics	2020-05-20
Characterization of organic aerosol across the global remote troposphere: a comparison of ATom measurements and global chemistry models	Atmospheric Chemistry and Physics	2020-04-21
Toward a better regional ozone forecast over CONUS using rapid data assimilation of clouds and meteorology in WRF‐Chem	Journal of Geophysical Research: Atmospheres	2019-12-16
The Whole Atmosphere Community Climate Model Version 6 (WACCM6)	Journal of Geophysical Research: Atmospheres	2019-12-16
Climate forcing and trends of organic aerosols in the Community Earth System Model (CESM2)	Journal of Advances in Modeling Earth Systems	2019-12-01
A simplified parameterization of isoprene-epoxydiol-derived secondary organic aerosol (IEPOX-SOA) for global chemistry and climate models: A case study with GEOS-Chem v11-02-rc	Geoscientific Model Development	2019-07-15
Response of surface ozone over the continental United States to UV radiation declines from the expected recovery of stratospheric ozone	npj Climate and Atmospheric Science	2018-10-04
Exploration of the influence of environmental conditions on secondary organic aerosol formation and organic species properties using explicit simulations: Development of the VBS-GECKO parameterization	Atmospheric Chemistry and Physics	2018-09-21
Detailed characterization of a mist chamber for the collection of water-soluble organic gases	Atmospheric Environment	2018-09-01
Global impact of nitrate photolysis in sea-salt aerosol on NOx, OH, and O3 in the marine boundary layer	Atmospheric Chemistry and Physics	2018-08-10
Quantifying errors in surface ozone predictions associated with clouds over the CONUS: A WRF-Chem modeling study using satellite cloud retrievals	Atmospheric Chemistry and Physics	2018-05-30
Modeling the chemical interaction between Manaus emissions and the Amazon rainforest with GECKO-A: A detailed look at secondary organic carbon composition	ARM/ASR PI Meeting 2018	2018-03-19
Observed and predicted sensitivities of extreme surface ozone to meteorological drivers in three US cities	Atmospheric Environment	2018-03-01
Impact of Biomass Burning Aerosols on the Diurnal Cycle of Convective Clouds and Precipitation over a Tropical Island	Journal of Geophysical Research: Atmospheres	2018-01-17
Improved modeling of cloudy-sky actinic flux using satellite cloud retrievals	Geophysical Research Letters	2017-02-16
Nitrate radicals and biogenic volatile organic compounds: oxidation, mechanisms, and organic aerosol	Atmospheric Chemistry and Physics	2017-02-13
Non-linear partitioning and organic volatility distributions in urban aerosols	Faraday Discussions	2016-07-01
Rethinking the global secondary organic aerosol (SOA) budget: stronger production, faster removal, shorter lifetime	Atmospheric Chemistry and Physics	2016-06-29
Impact of chamber wall loss of gaseous organic compounds on secondary organic aerosol formation: Explicit modeling of SOA formation from alkane and alkene oxidation	Atmospheric Chemistry and Physics	2016-02-08
CESM/CAM5 improvement and application: comparison and evaluation of updated CB05_GE and MOZART-4 gas-phase mechanisms and associated impacts on global air quality and climate	Geoscientific Model Development	2015-12-16
Limited effect of anthropogenic nitrogen oxides on secondary organic aerosol formation	Atmospheric Chemistry and Physics	2015-12-08
Modeling particle nucleation and growth over northern California during the 2010 CARES campaign	Atmospheric Chemistry and Physics	2015-11-05
Organic photolysis reactions in tropospheric aerosols: Effect on secondary organic aerosol formation and lifetime	Atmospheric Chemistry and Physics	2015-08-20
Comparative analysis of meteorological performance of coupled chemistry-meteorology models in the context of AQMEII phase 2	Atmospheric Environment	2015-08-01
Evaluation of operational online-coupled regional air quality models over Europe and North America in the context of AQMEII phase 2. Part II: Particulate matter	Atmospheric Environment	2015-08-01
A multi-model assessment for the 2006 and 2010 simulations under the Air Quality Model Evaluation International Initiative (AQMEII) phase 2 over North America: Part I. Indicators of the sensitivity of O3 and PM2.5 formation regimes	Atmospheric Environment	2015-08-01
A multi-model assessment for the 2006 and 2010 simulations under the Air Quality Model Evaluation International Initiative (AQMEII) Phase 2 over North America: Part II. Evaluation of column variable predictions using satellite data	Atmospheric Environment	2015-08-01
Evaluation of operational on-line-coupled regional air quality models over Europe and North America in the context of AQMEII phase 2. Part I: Ozone	Atmospheric Environment	2015-08-01
Assessment of the MACC reanalysis and its influence as chemical boundary conditions for regional air quality modeling in AQMEII-2	Atmospheric Environment	2015-08-01
Multiday production of condensing organic aerosol mass in urban and forest outflow	Atmospheric Chemistry and Physics	2015-01-16
The effect of dry and wet deposition of condensable vapors on secondary organic aerosols concentrations over the continental US	Atmospheric Chemistry and Physics	2015-01-06
Ultraviolet absorption by secondary organic aerosols [poster]	AGU Fall Meeting 2014	2014-12-15
Modeling ultrafine particle growth at a pine forest site influenced by anthropogenic pollution during BEACHON-RoMBAS 2011	Atmospheric Chemistry and Physics	2014-10-20
The AeroCom evaluation and intercomparison of organic aerosol in global models	Atmospheric Chemistry and Physics	2014-10-15
Modeling regional aerosol and aerosol precursor variability over California and its sensitivity to emissions and long-range transport during the 2010 CalNex and CARES campaigns	Atmospheric Chemistry and Physics	2014-09-22
Volatility dependence of Henry's law constants of condensable organics: Application to estimate depositional loss of secondary organic aerosols	Geophysical Research Letters	2014-07-16
Simulation of semi-explicit mechanisms of SOA formation from glyoxal in aerosol in a 3-D model	Atmospheric Chemistry and Physics	2014-06-24
Overview of the Manitou Experimental Forest Observatory: Site description and selected science results from 2008-2013	Atmospheric Chemistry and Physics	2014-06-24
Semicontinuous measurements of gas-particle partitioning of organic acids in a ponderosa pine forest using a MOVI-HRToF-CIMS	Atmospheric Chemistry and Physics	2014-02-11
Novel pathways to form secondary organic aerosols: Glyoxal SOA in WRF/Chem	Air Pollution Modeling and its Application XXIII	2014-01-01
Observations of gas- and aerosol-phase organic nitrates at BEACHON-RoMBAS 2011	Atmospheric Chemistry and Physics	2013-09-02
CHIMERE 2013: A model for regional atmospheric composition modelling	Geoscientific Model Development	2013-07-22
Limited influence of dry deposition of semivolatile organic vapors on secondary organic aerosol formation in the urban plume	Geophysical Research Letters	2013-06-19
Formation of organic aerosol in the Paris region during the MEGAPOLI summer campaign: evaluation of the volatility-basis-set approach within the CHIMERE model	Atmospheric Chemistry and Physics	2013-06-14
Thunderstorms and upper troposphere chemistry during the early stages of the 2006 North American Monsoon	Atmospheric Chemistry and Physics	2012-11-21
Impact of trash burning on air quality in Mexico City	Environmental Science & Technology	2012-03-29
Explicit modeling of organic chemistry and secondary organic aerosol partitioning for Mexico City and its outflow plume	Atmospheric Chemistry and Physics	2011-12-21
Modeling anthropogenically controlled secondary organic aerosols in a megacity: A simplified framework for global and climate models	Geoscientific Model Development	2011-10-24
Modeling organic aerosols in a megacity: Comparison of simple and complex representations of the volatility basis set approach	Atmospheric Chemistry and Physics	2011-07-13
Can 3-D models explain the observed fractions of fossil and non-fossil carbon in and near Mexico City?	Atmospheric Chemistry and Physics	2010-11-25
Modeling organic aerosols in a megacity: Potential contribution of semi-volatile and intermediate volatility primary organic compounds to secondary organic aerosol formation	Atmospheric Chemistry and Physics	2010-06-21
Modeling organic aerosols during MILAGRO: Importance of biogenic secondary organic aerosols	Atmospheric Chemistry and Physics	2009-09-22
Evaluating simulated primary anthropogenic and biomass burning organic aerosols during MILAGRO: Implications for assessing treatments of secondary organic aerosols	Atmospheric Chemistry and Physics	2009-08-31
Emissions of volatile organic compounds inferred from airborne flux measurements over a megacity	Atmospheric Chemistry and Physics	2009-01-14
Regional modeling of carbonaceous aerosols over Europe--focus on secondary organic aerosols	Journal of Atmospheric Chemistry	2008-11-01
A model inter-comparison study focussing on episodes with elevated PM10 concentrations	Atmospheric Environment	2008-06-01
Aerosol distribution over the western Mediterranean basin during a Tramontane/Mistral event	Annales Geophysicae	2007-11-29
Air quality in Europe during the summer of 2003 as a prototype of air quality in a warmer climate	Comptes Rendus Geoscience	2007-10-01
Wildfire particulate matter in Europe during summer 2003: Meso-scale modeling of smoke emissions, transport and radiative effects	Atmospheric Chemistry and Physics	2007-08-02
CityDelta: A model intercomparison study to explore the impact of emission reductions in European cities in 2010	Atmospheric Environment	2007-01-01
A model evaluation of coarse-mode nitrate heterogeneous formation on dust particles	Atmospheric Environment	2006-07-01
Evolution of aerosol optical thickness over Europe during the August 2003 heat wave as seen from CHIMERE model simulations and POLDER data	Atmospheric Chemistry and Physics	2006-05-30
Origin of particulate matter pollution episodes in wintertime over the Paris Basin	Atmospheric Environment	2005-10-01
Long-term urban aerosol simulation versus routine particulate matter observations	Atmospheric Environment	2005-10-01
Comparison of aerosol chemistry transport model simulations with lidar and Sun photometer observations at a site near Paris	Journal of Geophysical Research-Atmospheres	2004-12-01
Aerosol modeling with CHIMERE--preliminary evaluation at the continental scale	Atmospheric Environment	2004-06-01

Curriculum Vitae

Alma_Hodzic_CV_NCAR_2014-08.doc

Education

Degree	School Name	Country	Field of Study
France	PhD	Physics	École Polytechnique (France)

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Interests

Research Interest:

Process modeling of organic aerosols to identify parameters controlling their formation and lifetime and build parameterizations for use in chemistry-climate models (e.g (i) parameterizing the multiday growth of SOA from various precursors, mixtures and NOx conditions, (ii) developing water solubility parametrizations for oxidation intermediates involved in SOA formation, (iii) assessing the role of gas-phase and particle-phase photolysis on SOA; (iv) Estimating the SOA direct and indirect removals).
Aerosol regional and global modeling studies: Characterizing the composition and origin of atmospheric aerosols in polluted and clean conditions by improving the representation of emission sources, organic aerosol formation processes, removals, and interactions between aerosols, gases, and radiation in models.
Studying air quality under extremely polluted conditions i.e. megacities (MILAGRO-Mexico-City, MEGAPOLI-Paris), heat wave episodes, wildfire events, volcanic eruptions, and testing the limitations of current parameterizations.
Providing 3D and box modeling expertise during field projects (MILAGRO, BEACHON, NOMADSS) to help interpret aerosol measurements and test new model parameterizations.
Contributing to the development and evaluation of community models: process (GECKO-A), regional (WRF-Chem and the European model CHIMERE) and global (CAM-Chem, GEOS-Chem). Providing user’s support and tutorial activities for WRF-Chem.

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Alma Roux

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