Alma HODZIC - acd

Alma HODZIC
National Center for Atmospheric Research
P.O. Box 3000, Boulder, CO 80307-3000, USA
Phone: (303) 497-1463; Email: alma@ucar.edu
Age: 34 years (8 Oct. 1978)
Education
2005 Ph.D. in Atmospheric Science, Ecole Polytechnique, Paris, France.
2002 M.Sc. and Engineering degree in Meteorology, National School of Meteorology, France.
1997 Baccalaureate in Science (national exam), France.
Professional Experience
Dec. 2010 – Present: Scientist II, NCAR Earth System Laboratory, Atmospheric Chemistry Division
Dec. 2007 – Dec. 2010: Scientist I, NCAR Earth System Laboratory, Atmospheric Chemistry Division
Dec. 2005 – Dec. 2007: Post-Doctoral Scientist, NCAR Advanced Study Program (ASP).
Awards and Honors
2011 DOE research grant (as PI).
2006 Young Scientist Award from the Ecole Polytechnique, France.
2005 Advanced Study Program post-doctoral grant.
2005 Ph.D. Honors from the Ecole Polytechnique, France.
2002 Scholarship from ADEME (Agence De l'Environnement et de la Maitrise de l'Energie).
2002 Graduate Student Achievement Award from National School of Meteorology, France.
Research Interests
Aerosol modeling studies at local and regional scales: Characterizing the composition and origin of
atmospheric aerosols in polluted and clean conditions by improving the representation of
emission sources, organic aerosol formation processes, chemistry of aerosol precursors, 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) to help
interpret aerosol measurements and test/develop new model parameterizations.
Contributing to the development and evaluation of community models such as WRF-Chem and the
European model CHIMERE; Applying the GECKO-A explicit chemistry generator and box
model to simulate organic aerosol chemistry and processes, and their sensitivity to perturbations.
Synergistic Activities
2011 ECSA internal co-chair for the NCAR strategic plan
2011 Science co-supervisor for the SOARS program for Annareli Morales.
2009-2010: Co-PI of the Accelerated Science Discovery computational computing award for
WRF/Chem modeling.
2007-2012: NCAR/ACD Seminars coordinator.
2005 Co-organizer of NCAR Junior Faculty Forum
Supervising Activities
Alma’s Graduate and Postdoctoral Advisors
Robert Vautard, Laboratoire des Sciences du Climat et de l’Environnement (LSCE), France.

Sasha Madronich, NCAR, Boulder, Colorado
Graduate and postgraduate student advisor for :
Advised the following undergraduate and postdoctoral scientists:
Christoph Knote, DOE postdoc 2011/2013;
Yuyan Cui, Jun.-Dec. 2012, ASP undergraduate visitor from St Louis University;
Kai Wang, summer 2011, ASP postdoc visitor;
Jasper Kok, 2009-2011, ASP postdoc at NCAR;
Robin Locatelli, 2010-2010, undergraduate student from Meteo-France, France.
Refereed journal articles
1. Fry J.L., Draper D.C., et al., Observations of gas- and aerosol-phase organic nitrates at BEACHON-
RoMBAS 2011, submitted to Atmos. Chem. Phys., Oct. 2012.
2. Zhang Q.J., Beekmann M., et al., Evaluation of the Volatility-Basis-Set approach for organic aerosol
simulation within the CHIMERE model during the MEGAPOLI Paris summer campaign, Atmos.
Chem. Phys. Discuss., 12, 29475-29533, 2012.
3. Barth M.C., Lee J., Hodzic A., et al., Thunderstorms and upper troposphere chemistry during the
early stages of the 2006 North American Monsoon, Atmos. Chem. Phys. Discuss., 12, 16407-16455,
2012.
4. 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.
5. 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.
6. 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.
7. 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.
8. 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.
9. 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.
10. 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.
11. 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.
12. 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.
13. 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.
14. 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.

15. 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.
16. 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.
17. 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.
18. 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.
19. 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.
20. 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.
21. 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.
22. 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.
23. 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.
24. 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.
25. 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.
26. 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.
Articles in preparation
27. Hodzic A., Gochis D., Y. Cui et al., Meteorological conditions, emissions and transport of
anthropogenic pollutants over the Central Rocky Mountains during the 2011 BEACHON-RoMBAS
filed study, in preparation for Atmos. Chem. Phys., Jan. 2013.
28. Hodzic A., Madronich S., Lee-Taylor J., Aumont B., Karl T., et al. Effect of dry deposition of semivolatile
organic vapors on secondary organic aerosol mass exported in the urban outflow, in
preparation for GRL, Jan 2013.
29. Ortega, J., et al., Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics &
Nitrogen (BEACHON) studies at the Manitou Experimental Forest in Colorado, to be submitted to
BAMS, 2012.
30. Kok, J. F., C. Zhao, A. Hodzic, T. Eidhammer, J. D. Fast, and N. M. Mahowald, Constraining the
size distribution of North African mineral dust aerosols: Implications for regional climate forcing and
the size of the North African dust cycle, in preparation.

Non-refereed publications and selected presentations since 2006
a) Conferences
Hodzic A., Lee-Taylor J., Madronich S. et al. Biogenic SOA formation and response to NOx reductions
over the Colorado conifer forest, BEACHON-RoMBAS Data Meeting, NCAR 12-13 Nov. 2012.
Hodzic A., Lee-Taylor J., Madronich S. et al. Biogenic SOA formation and response to NOx reductions
over the Colorado conifer forest, Invited talk, ASR DOE meeting, Nov. 2012.
Hodzic et al., Air quality during the 2003 European heat wave as a prototype of air quality in a warmer
climate, invited talk, NESL science social, NCAR October 2012.
Hodzic et al., Evaluation of Organic Aerosol (OA) Sources and Mechanisms using the WRF/Chem model
and data from recent field studies i.e. MILAGRO, BEACHON, CARES / CalNex, poster at the DOE
ASR meeting, March 2012.
Hodzic A. et al., Improving the simulation of organic aerosols from anthropogenic and burning sources: a
simplified SOA formation mechanism and the impact of trash burning, poster at the AGU Fall meeting,
San Francisco, 2011.
Hodzic A., Modeling secondary organic aerosols (SOA) in a megacity: an overview of measurements and
modeling studies during MILAGRO 2006, Oral présentation at the Early Career Scientist Assembly
Workshop on Regional Climate Issues in Developing Countries, NCAR, October 2011.
Hodzic A., Combining measurements and model predictions towards a simplified representation of
organic aerosols, talk at the DOE meeting, Annapolis, Sept. 2011.
Hodzic A., A simplified framework for modeling secondary organic aerosols (SOA) from anthropogenic
sources, WRF workshop, Boulder, June 2011.
Hodzic et al., Air quality in the U.S. under summer hear wave conditions, WRF workshop, Boulder, June
2010.
Hodzic A., S. Massie, S. Madronich and J. Lee, Effects of the Icelandic volcano eruption on tropospheric
chemistry, WRF workshop, Boulder, June 2010.
Hodzic A., Jimenez J.L., Prevot A., Szidat S., Fast J., and Madronich S., Can 3D Models Explain the
Observed Fraction of Non-Fossil Carbon in Mexico City? International Aerosol Conference IAC,
Helsinki, 2010.
Hodzic A. et al., Can 3D Models Predict The Observed Fractions Of Modern And Fossil Carbon In and
Near Mexico City? EGU, May 2010.
Hodzic A. et al., Modeling organic aerosols during MILAGRO: importance of biogenic secondary
organic aerosols, Goldschmidt, Davos, June 2009.
Hodzic A. et al., Ozone during the heat wave of the 2006 North American Monsoon, WRF workshop,
Boulder, June, 2009.
Hodzic A. et al., Can 3D Models Explain Observed Primary and Secondary, Fossil and non-Fossil
Organic Aerosols?, Invited talk, NOAA Air quality workshop, Nov. 2009.
Hodzic A. et al., What have we learned from the 3D modeling of organic aerosols during the 2006
MILAGRO experiment?, IAMA Dec. 2009.
Hodzic A. et al., Can 3D Models Explain the Primary and Secondary, Fossil and non-Fossil Organic
Aerosols Observed during the 2006 MILAGRO Experiment?, AGU, Dec. 2009.
Hodzic, A., J.L. Jimenez, S. Madronich, A.C Aiken, B. Bessagnet, J. Fast, J.F. Lamarque, T.B Onasch,
G. Roux, and I.M. Ulbrich: Modeling the organic aerosol fraction within the Mexico City basin during
the MILAGRO field experiment, EGU, Austria, 2009.
Hodzic A. et al, Assessing the evolution of aerosol pollution in the Mexico City outflow using the
WRF/Chem model and MILAGRO data, IGAC, Annecy, France, 2008.
Hodzic A. et al, Modeling carbonaceous aerosol fraction in the Mexico City plume during the MIRAGE
field experiment, IGAC, Annecy, France, 2008.

Hodzic A, Contribution of Wildfire Emissions to Ambient Air Quality in Europe During Summer 2003:
Meso-Scale Modeling of Smoke Emissions, Transport and Radiative Effects, Accent Symposium,
Urbino, Italy, 2007.
Hodzic, A., Madronich, S., Bohn, B., Goloub, P., Massie , S., Menut, L., Wiedinmyer, C. Contribution of
wildfire emissions to ambient air quality in Europe during summer 2003: meso-scale modeling of smoke
emissions, transport and radiative effects. EGU, Vienna, 2007.
Hodzic A., et al., On the contribution of the heterogeneous chemistry to nitrate concentrations over
Europe based on modeling results and long term and campaign measurements, Developments in
Environmental Science, Volume 6, C. Borrego and E. Renner (Editors), Elsevier., ISSN: 1474-
8177/DOI:10.1016/S1474-8177(07)06053-6, 2007.
Hodzic A., “Aerosol model validation using remote sensing: Evolution of AOT over Europe during the
2003 summer heat wave as seen from CHIMERE simulations and POLDER-2 data”, seminar at PNNL,
Richland, WA, November 2006.
Hodzic A., Menut L., Bessagnet B., Vautard R., On the contribution of the heterogeneous chemistry to
nitrate concentrations over Europe based on modeling results and long-term and campaign measurements,
ITM conference, Leipzig, Germany, 15-19 May 2006.
b) Conferences (as collaborative work)
Turnipseed A., Hodzic A., et al., BEACHON-RoMBAS: Ecosystem Status, Meteorology, and Trace
Gases, BEACHON-RoMBAS Data Meeting, NCAR 12-13 Nov. 2012.
Wang K., Hodzic A., Barth M., Modeling Gas-phase Glyoxal and Associated Secondary Organic Aerosol
Formation in a Megacity using WRF/Chem, AGU Fall meeting, San Francisco, 2011.
Zhang et al., Simulated organic aerosol partition during the MEGAPOLI Campaign in the Greater Paris
Region, AGU Fall meeting, San Francisco, 2011.
Jimenez et al., Measurements-based constraints on the regional and global secondary organic aerosol
budget, DOE meeting, 2011.
Barth et al., Using MEGAN Biogenic Emissions to Study the Fate of Isoprene on the Regional Scale,
WRF workshop, Boulder, June 2010.
Shrivastava et al., Simplifying a secondary organic aerosol formation mechanism for use in global
models using the WRF-Chem regional model, AAAR, May, 2010.
Shrivastava et al., Modeling the formation of secondary organic aerosols from semi-volatile organic
vapors in the Mexico City region, DOE meeting, 2010.
Barth M., et al., Modeling Study of Thunderstorm Effects on the Upper Troposphere during the Early
Stages of the 2006 North America Monsoon, AGU, Dec. 2009.
Schmeling M., Hodzic A., Massie ST., Recirculation of air pollutants during lake breeze events in
Chicago, AGU, Dec. 2009.
Prevot et al., Assessment of fossil and non-fossil primary and secondary organic aerosol with
measurements and existing 3-D models for Central Europe, IAMA, Dec. 2009.
Dzepina et al., Evaluation of recently-proposed secondary organic aerosol models for a case study in
Mexico City and its outflow, IAMA, Dec. 2009.
Barth et al., Current and Future Aerosol Studies Using WRF-Chem at the National Center for
Atmospheric Research, IAMA, Dec. 2009.
Jimenez et al., SOA Measurements vs. Models: a Status Report, IAMA, Dec. 2009.
Wiedinmyer et al., Global fire emission estimates for air quality forecasting applications, NOAA Air
quality workshop, Nov. 2009.
Jimenez et al., Characterization of OA Concentrations & Properties, and Comparison to Models, Gordon
Conference, Aug., 2009.
Curci G, et al., Contribution of natural/biogenic sources to particulate matter levels over Europe: A multiscale
modelling study, EGU, 2009.

Pere J.C., Mallet M, Bessagnet B., Pont V., Chepfer H., Hodzic A., Menut L., Liousse C., Evidence of
the Aerosol Core/Shell Mixing State Over Europe by Using CHIMERE Simulations and AERONET
Inversions, AGU, 2008.