FIS image header
Scholarly Interest Report
Daniel S. Cohan
Associate Professor
Associate Professor in Civil and Environmental Engineering
  • B.A. Applied Mathematics (1998) Harvard University, Cambridge, MA
  • Ph.D. Atmospheric Science (2004) Georgia Institute of Technology, Atlanta, GA
Primary Department
   Department of Civil and Environmental Engineering
Author of articles in The Conversation, The Hill, Bloomberg Government, and Houston Chronicle
Author of articles for The Conversation, Houston Chronicle, etc.
 Cohan Research Group
 Cohan Research Group website
 Cohan Research Group
Research Areas
 Interface of Air Climate Energy; atmospheric modeling; air quality management; environmental impacts of energy use; satellite remote sensing; uncertainty analysis
Research Statement
 Dr. Daniel Cohan specializes in the application of photochemical models to air quality management. With funding from the Fall-line Air Quality Study, Dr. Cohan implemented a high-order sensitivity analysis method into a photochemical model and developed techniques for its application to control strategy optimization. Before joining Rice, Dr. Cohan helped develop state policies for mercury and air quality attainment at the Georgia Environmental Protection Division. He received a B.A. in applied mathematics from Harvard University, a Ph.D. in atmospheric chemistry from Georgia Tech, and served as a Fulbright Scholar to Australia at the Cooperative Research Centre for Southern Hemisphere Meteorology.
Photochemical Modeling to Inform Air Quality Management
 Professor Cohan¿s research focuses on the application of photochemical models to air quality management. Current research includes examining how uncertainty in photochemical modeling impacts environmental decision making, and exploring the air quality and other implications of growing electricity demand. Dr. Cohan implemented a high-order sensitivity analysis method into the CMAQ photochemical model and developed techniques for its application to control strategy optimization. Before joining Rice University, Dr. Cohan worked on the development of air quality attainment strategies and mercury policy for the State of Georgia and served as a Fulbright Scholar to Australia.
Teaching Areas
 Energy and the Environment
Atmospheric Processes (meteorology, climate, air pollution)
Selected Publications
 Refereed articles

Cohan, D.S., N.Y. Krakauer, J.J. Corbett, D. Rife, R. Zhang, A.R. Halberstadt, and L.Y. Parks "Could cuts in sulfur from coal and ships help explain the 2015 spurt in Northern Hemisphere temperatures." Earthzine


Cohan, D.S., and S. Sengupta "Net Greenhouse Gas Emissions Savings from Natural Gas Substitutions in Vehicles, Furnaces, and Power Plants." International Journal of Global Warming, 9 (2016) : 254-273.


Ghasideh Pourhashem1, Quazi Z. Rasool, Rui Zhang, Kenneth B. Medlock, Daniel S. Cohan, Caroline A. Masiello "Valuing the air quality effects of biochar reductions in soil NO emissions." Nature Climate ChangeSubmitted


Rasool, Q.Z., R. Zhang, B. Lash, D.S. Cohan, E. Cooter, J. Bash, L.N. Lamsal "Enhanced representation of soil NO emissions in the Community Multi-scale Air Quality (CMAQ) model version 5.0.2." Geoscientific Model Development, 9 (2016) : 3177-3197.


Rife, D., N.Y. Krakauer, D.S. Cohan, J.C. Collier "A new kind of drought: U.S. record low windiness in 2015." Earthzine (June 10, 2016)


Shayak Sengupta; Daniel Cohan "Fuel Cycle Emissions and Life Cycle Costs of Alternative Fuel Vehicle Policy Options for the City of Houston Municipal Fleet." Transportation Research DIn Revision


Tao, Z., A. Kokas, R. Zhang, D.S. Cohan, and D. Wallach "Inferring atmospheric particulate matter concentrations from Chinese social media data." PLOS ONE


Daniel S. Cohan and Shayak Sengupta "Net Greenhouse Gas Emissions Savings from Natural Gas Substitutions in Vehicles, Furnaces, and Power Plants." International Journal of Global Warming (2015) In Press


Shayak Sengupta and Daniel S. Cohan "Fuel Cycle Emissions and Life Cycle Costs of Alternative Fuel Vehicle Options for the City of Houston Municipal Fleet." Transportation Research Part D (2015) Submitted


Tang, W., D.S. Cohan, A. Pour-Biazar, L.N. Lamsal, X. Xiao, W. Zhou, B.H. Henderson, and B. Lash "Influence of satellite-derived photolysis rates and NOx emissions on Texas ozone modeling." Atmospheric Chemistry and Physics, 14 (2015) : 1601-1619.


Zhu Tao, Aynne Kokas, Rui Zhang, Daniel S. Cohan and Dan Wallach "Inferring Atmospheric Particulate Matter Concentrations from Chinese Social Media Data." PLOS ONE (2015) In Revision


Cohan, D.S., and R. Chen (2014). Modeled and observed fine particulate matter reductions in state implementation plans. Journal of the Air & Waste Management Association, 64(9), 995-1002, doi: 10.1080/10962247.2014.905509.


Zhou, W., D.S. Cohan, and B.H. Henderson (2014). Slower ozone production in Houston, Texas, following emission reductions: evidence from Texas Air Quality Studies in 2000 and 2006. Atmospheric Chemistry and Physics, 14, 2777-2788.


Zhu, L., D.J. Jacob, L.J. Mickley, E.A. Marais, D.S. Cohan, Y. Yoshida, B.N. Duncan, G.G. Abad, and K.V. Chance (2014). Anthropogenic emissions of highly reactive volatile organic compounds in eastern Texas inferred from oversampling of satellite (OMI) measurements of HCHO columns. Environmental Research Letters 9(11), doi:10.1088/1748-9326/9/11/114004.


Digar, A., D.S. Cohan, X. Xiao, K.M. Foley, B. Koo, and G. Yarwood (2013). Constraining ozone-precursor responsiveness using ambient measurements. Journal of Geophysical Research, 118(2), 1005-1019, doi:10.1029/2012JD018100.


Tang, W., D.S. Cohan, L.N. Lamsal, X. Xiao, and W. Zhou (2013). Inverse modeling of Texas NOx emissions using space-based and ground-based NO2 observations. Atmospheric Chemistry and Physics, 13, 11005-11018. doi:10.5194/acp-13-11005-2013.


Zhou, W., D.S. Cohan, and S.L. Napelenok (2013). Factors affecting CMAQ predictions of ozone improvements following the NOx SIP Call. Atmospheric Environment, 70, 236-244. doi: 10.1016/j.atmosenv.2012.12.038.


Pegues, A.H., D.S. Cohan, A. Digar, C. Douglass, and R.S. Wilson (2012). Efficacy of recent state implementation plans for 8-hour ozone. Journal of the Air & Waste Management Association, 62(2), 252-261. doi: 10.1080/10473289.2011.646049.


Zhou, W., D.S. Cohan, R.W. Pinder, J.A. Neuman, J.S. Holloway, J. Peischl, T.B. Ryerson, J.B. Nowak, F. Flocke, and W.G. Zheng (2012). Observation and modeling of the evolution of Texas power plant plumes. Atmospheric Chemistry and Physics, 12, 455-468. doi: 10.5194/acp-12-455-2012.


Bergin, M.S., A.G. Russell, M.T. Odman, D.S. Cohan, and W.L. Chameides "Single-source impact analysis using 3D air quality models." Journal of the Air & Waste Management Association, 58 (2008) : 1351-1359.


Jin, L., S. Tonse, D.S. Cohan, X. Mao, R.A. Harley, and N.J. Brown "Direct sensitivity analysis of ozone formation in California’s San Joaquin Valley." Environmental Science & Technology, 42 (2008) : 3683-3689.


Kim, S., D.S. Cohan, and D.W. Byun "Contributions of inter- and intra-state emissions to ozone over Dallas-Fort Worth, Texas." Civil Engineering and Environmental Systems, 26 (2009) : 103-116.


Napelenok, S.L., D.S. Cohan, M.T. Odman, and S. Tonse "Extension and evaluation of sensitivity analysis capabilities in a photochemical model." Environmental Modelling & Software, 23 (2008) : 994-999.


Chestnut, L., D.S. Cohan, and D. Mills "Cost-benefit analysis in the selection of efficient multipollutant strategies." Journal of the Air & Waste Management Association, 56 (2006) : 530-536.


Cohan, D.S., A. Hakami, Y. Hu, and A.G. Russell "Nonlinear response of ozone to emissions: Source apportionment and sensitivity analysis." Environmental Science & Technology, 39 (2005) : 6739-6748.


Cohan, D.S., D. Tian, Y. Hu, and A.G. Russell "Control strategy optimization for attainment and exposure mitigation: Case study for ozone in Macon, Georgia." Environmental Management, 38 (2006) : 451-462.


Cohan, D.S., G. Sturrock, A. Biazar, and P. Fraser "Atmospheric methyl iodide at Cape Grim, Tasmania, from AGAGE observations." Journal of Atmospheric Chemistry, 44 (2003) : 131-150.


Cohan, D.S., J. Xu, R. Greenwald, M.L. Bergin, and W.L. Chameides "Impact of atmospheric aerosol light scattering and absorption on C-uptake by terrestrial plants." Global Biogeochemical Cycles (2002)


Cohan, D.S., J.W. Boylan, A. Marmur, and M. Khan "An integrated framework for multi-pollutant air quality management and its application in Georgia." Environmental Management, 40 (2007) : 545-554.


Cohan, D.S., M. Schultz, D.J. Jacob, B.L. Heikes, and D. Blake "Convective injection and photochemical decay of peroxides in the tropical upper troposphere: Methyl iodide as a tracer of marine convection." Journal of Geophysical Research, 104 (1999) : 5717-5724.


Cohan, D.S., Y. Hu, and A.G. Russell "Dependence of ozone sensitivity analysis on grid resolution." Atmospheric Environment, 40 (2006) : 126-135.


Greenwald, R., M. Bergin, J. Xu, D.S. Cohan, G. Hoogenboom, and W.L. Chameides "The influence of aerosols on crop production: A study using the CERES crop model." Agricultural Systems, 89 (2006) : 390-413.


Napelenok, S.L., D.S. Cohan, Y. Hu, and A.G. Russell "Decoupled direct 3D sensitivity analysis for particulate matter." Atmospheric Environment, 40 (2006) : 6112-6121.


Daniel Cohan "Are Clinton's solar goals feasible?." The Hill


Daniel Cohan "Clinton vows to meet Paris climate pledge, but it won't be easy." The Hill (August 1, 2016)


Daniel Cohan "Corporate demand for green power grows, but what will increased supply look like?." The Hill (August 28, 2016)


Daniel Cohan "EIA’s Cascading Coal Forecasts." Bloomberg Government (April 13, 2016)


Daniel Cohan "EIA’s shrinking emissions forecasts." Bloomberg Government (June 10, 2016)


Daniel Cohan "How to make climate progress with Trump in the White House." The Hill (December 9, 2016)


Daniel Cohan "Is natural gas a fossil fuel substitute, or does it just crowd out renewables?." The Hill (March 8, 2016)


Daniel Cohan "Lessons from a red state in how to go green under Republicans." The Hill (November 22, 2016)


Daniel Cohan "Net metering for solar power sounds simple, but is it fair?." The Hill (June 13, 2016)


Daniel Cohan "New report shows importance of Clean Power Plan." The Hill (May 23, 2016)


Daniel Cohan "Plummeting coal use and peaking stockpiles." The Hill (February 17, 2016)


Daniel Cohan "Political challenges to climate science at home and abroad." The Hill (March 14, 2016)


Daniel Cohan "Power Plants May Hit Emissions Target This Year ." Bloomberg Government (March 24, 2016)


Daniel Cohan "Tesla-SolarCity deal highlights pillars of sustainable energy future." The Hill (June 28, 2016)


Daniel Cohan "The environmental toll of storing fossil fuels." The Hill (May 3, 2016)


Daniel Cohan "The most important pollution rule you've never heard of." The Hill (December 29, 2016)


Daniel Cohan "To curb climate change, looking beyond carbon dioxide to your AC." The Hill (August 11, 2016)


Daniel Cohan "Trump gets it wrong on China and the Paris climate agreement." The Hill (July 22, 2016)


Daniel Cohan "Trump's unrealistic promises in coal country." The Hill (May 10, 2016)


Daniel Cohan "What will energy policy look like under President Clinton or Trump?." The Hill (November 8, 2016)


Daniel Cohan "What will energy policy look like under President Trump?." Our Energy Policy (November 15, 2016)


Daniel Cohan "When coal companies go bankrupt, the mining doesn't always stop." The Hill (April 10, 2016)


Daniel Cohan "Wind and Solar: How High Can They Go?." Bloomberg Government (September 6, 2016)


Daniel Cohan and Alex Gilbert "An energy agency's forecasting flaws." The Hill


Daniel Cohan and Leah Parks "Achieving Clean Power Plan targets well ahead of schedule." The Hill (February 24, 2016)


Daniel Cohan, Beata Czader, and Rui Zhang "The paradox of peak-based ozone air pollution standards." The Conversation (May 19, 2016)


Daniel Cohan "Can Exxon mend its climate-busting ways." Houston Chronicle (December 29, 2015)


Daniel Cohan "Could Hurricane Patricia be a harbinger of storms in a warming climate?." The Conversation (October 28, 2015)


Daniel Cohan "Houston and Dallas can't possibly meet new air-quality standards." Houston Chronicle (December 2, 2015)


Daniel Cohan "Hurricane Patricia, warming oceans, and the future of storms." Houston Chronicle (October 28, 2015)


Daniel Cohan "If a solar plant uses natural gas, is it still green?." The Conversation (November 4, 2015)


Daniel Cohan "The big new concept in Obama's Keystone XL decision." Houston Chronicle (November 16, 2015)


Daniel Cohan "Why strict new ozone rules won't do much for Texans' health: Particulates and carbon emissions pose greater threats."  (December 7, 2015)


Daniel Cohan. "Texas can lead in approaches to meeting emissions caps." Houston Chronicle, July 9, 2014.


Cohan, D.S. (2013). Murky Business of Smog Control. Chemistry & Industry, May 2013, p. 9.


Cohan, D.S. (2011). An energy and environment undergraduate course emphasizing comparative metrics. ASCE Journal of Professional Issues in Engineering Education & Practice, 137(2), 64-68, doi:10.1061/(ASCE)EI.1943-5541.0000045.


Cohan, D.S., and C. Douglass (2011). Potential emissions reductions from grandfathered coal power plants in the United States. Energy Policy, 39(9), 4816-4822, doi: 10.1016/j.enpol.2011.06.039.


Cohan, D.S., and S.L. Napelenok (2011). Atmospheric response modeling for decision support. Atmosphere, 2(3), 407-425. doi:10.3390/atmos2030407.


Digar, A., D.S. Cohan, D.D. Cox, B.-Y. Kim, and J.W. Boylan (2011). Likelihood of achieving air quality targets under model uncertainties. Environmental Science & Technology, 45, 189-196, doi: 10.1021/es102581e.


Digar, A., D.S. Cohan, M.L. Bell, and W. Tang (2011). Uncertainties influencing health-based prioritization of ozone abatement strategies. Environmental Science & Technology , 45(1), 189-196. doi: 10.1021/es102581e.


Ji, M., D.S. Cohan, and M.L. Bell (2011). Meta-analysis of the association between short-term exposure to ambient ozone and respiratory hospital admissions. Environmental Research Letters, 6, 11 pp., doi: 10.1088/1748-9326/6/2/024006.


Tang, W., D.S. Cohan, G.A. Morris, D.W. Byun, W.T. Luke (2011). Influence of vertical mixing uncertainties on ozone simulation in CMAQ. Atmospheric Environment, 45(17), 2898-2909. doi: 10.1016/j.atmosenv.2011.01.057.


Wang, X., Y. Zhang, Y. Hu, W. Zhou, L. Zeng, M. Hu, D.S. Cohan, A.G. Russell (2011). Decoupled direct sensitivity analysis of regional ozone pollution over the Pearl River Delta during the PRIDE-PRD2004 campaign. Atmospheric Environment, 45(28), 4941-4949, doi:10.1016/j.atmosenv.2011.06.006.


Cohan, D.S., B. Koo, and G. Yarwood (2010). Influence of uncertain reaction rates on ozone sensitivity to emissions in Houston. Atmospheric Environment, 44, 3101-3109.
Tian, D., M.S. Bergin, D.S. Cohan, S. Napelenok, Y. Hu, M. Chang, A.G. Russell (2010).


Digar, A., and D.S. Cohan (2010). Efficient characterization of pollutant-emission response under parametric uncertainty. Environmental Science & Technology, 44(17), 6724-6730, doi:10.1021/es903743t.


Tian, D., M.S. Bergin, D.S. Cohan, S. Napelenok, Y. Hu, M. Chang, A.G. Russell (2010). Uncertainty analysis of ozone formation and response to emission controls using high-order sensitivities. Journal of the Air & Waste Management Association, 60, 797-804.


Xiao, X., D.S. Cohan, D.W. Byun, and F. Ngan "Highly nonlinear ozone formation in the Houston region and implications for emissions controls. Journal of Geophysical Research." 


Kim, S., D.W. Byun, and D. Cohan (2009). Contributions of inter-and intra-state emissions to ozone over Dallas-Fort Worth, Texas. Civil Engineering and Environmental Systems. 26: 103-116. 

 Book chapters

Cohan, D.S., A. Digar, and M.L. Bell. "Influence of concentration-response temporal metrics on control strategy optimization. in Air Pollution Modeling and its Application XX." 


Zhou, W., and D.S. Cohan. "Nonlinear formation of ozone in power plant plumes in Texas. in Air Pollution Modeling and its Application XX." 


Cohan, D.S., A. Digar, and M.L. Bell (in press, 2009). Influence of concentration-response temporal metrics on control strategy optimization. Air Pollution Modeling and its Application XIX.Ed. Douw Steyn. 


Zhou, W., and D.S. Cohan (in press, 2009). Nonlinear formation of ozone in power plant plumes in Texas. Air Pollution Modeling and its Application XIX. Ed. Douw Steyn.


Cohan, D.S. and A.G. Russell. "Cost-optimized air pollution control using high-order sensitivity analysis." Air Pollution Modeling and its Application XVII (2007) : 48-58.


Cohan, D.S., Y. Hu, and A.G. Russell. "Alternative approaches to diagnosing ozone production regime." Air Pollution Modeling and its Application XVII (2006) : 140-148.

 Conference abstracts

Cohan, DS and B Czader. Emission reductions needed to meet proposed ozone standard and their effect on particulate matter. CMAS Conference, Chapel Hill, NC, October 2015.


"Toward the integration of air quality and climate strategies at the state level." CMAS Conference, Chapel Hill, NC, 2014.


“Retrospective evaluation of recent state implementation plans for ozone.” American Meteorological Society Annual Meeting, Austin, TX, 2013.

 Invited Talks

"Refocusing Air Climate and Energy Policy for Cooler, Cleaner Air; Air & Waste Management Association Hot Air Topics meeting." (May 6, 2016)


"Coal: An old source facing new challenges." Sierra Club conference, Dallas, TX, 2014.


“Air Quality Responses to Emissions Trends.” University of Houston departmental seminar, Houston, TX, 2013.


“Linking Air Quality Models and Epidemiology to Assess Health Impacts.” University of Texas School of Public Health seminar, Houston, TX, 2013.


“Uncertainties Influencing Health-Based Prioritization of Ozone Abatement Options.” AAAS Annual Conference, Boston, MA, 2013.


"Characterizing ozone response to emissions and its uncertainty.” Harvard University seminar, Cambridge, MA.


"State of the Air: Air Quality and Climate Change in Texas and Beyond." American Meteorological Society Houston Chapter meeting, Houston, TX.


"“Characterizing Uncertainty in Atmospheric Response Modeling.” Texas A&M University departmental seminar, College Station, TX."


“Assessing the Uncertainties of SIP Strategy Modeling.” Invited presentation to California Air Resources Board, Sacramento, CA


“Uncertainty in pollutant-emission sensitivity modeling.” University of North Carolina air group seminar, Chapel, NC


"Invited Presentation, Rice Old Men Eating Out quarterly luncheon."


"Air quality modeling to inform health impact analyses.." University of Texas School of Public Health, Environmental and Occupational Health Sciences Division, Houston, TX. (2008)


"High‐order sensitivity analysis of photochemical models.." Nankai University College of Environmental Science and Engineering, Tianjin, China. (2008)


"Photochemical sensitivity analysis and its application to policy.." University of Houston Department of Civil & Environmental Engineering, Houston, TX. (2008)


"An integrated approach to air quality management." Canadian Council of Ministers of the Environment Strategic Planning Workshop, Toronto, Canada. (2005)


"Atmospheric science in the public realm." Atmospheric Chemistry Colloquium for Emerging Senior Scientists, Yellowstone National Park, WY. (2005)


"CMAQ-DDM: Method, performance, and application." University of Houston Dept. of Geosciences, Houston, TX. (2005)


"Decoupled direct method for atmospheric sensitivity analysis." EPA Regulatory Modeling Workshop, New Orleans, LA. (2005)


"Modeling the air quality impacts and health benefits of emissions reductions." EPA Air Innovations Conference, Chicago, IL. (2005)


Rui Zhang, Daniel Cohan, Alex Cohan, and Arastoo Pour-Biazar, Source apportionment of biogenic contributions to ozone formation over the United States, CMAS Annual Conference


"How #WhyNotPedagogy empowers students to learn, teach, and lead; AQAST Meeting." (January 2016)


"Kalman Filter Inversion of Regional NOx Emissions based on OMI NO2 Observations." American Geophysical Union Annual Meeting, San Francisco, CA.


"Observation-constrained probabilistic evaluation of modeled concentrations and sensitivities." CMAS Annual Conference, Chapel Hill, NC.


"Georgia Air Policy Symposium."


"Applicability of CMAQ-DDM to source apportionment and control strategy development." Models-3 Users Workshop, Durham, NC. (2004) With A.G. Russell


"Emission of methyl iodide from the Southern Ocean." International Conference on Southern Hemisphere Meteorology and Oceanography, Santiago, Chile. (2000) With G.A. Sturrock, P.J. Fraser


"Heterogeneity of ozone yield with location of NOx emission origin." American Geophysical Union Fall Conference, San Francisco, CA. (2004) With Y.Hu, A.G. Russell


"Impact of atmospheric particulate matter on plants." Southeast Ecology & Evolution Conference, Atlanta, GA. (2004)


"Implementation of a direct sensitivity analysis method into CMAQ." Models-3 Users Workshop, Durham, NC. (2002) With A. Hakami, Y. Hu, A.G. Russell


"Integrating atmospheric science into air quality planning: Challenges and opportunities." American Meteorological Society Annual Meeting, Atlanta, GA. (2006)


"Methyl iodide as a tracer of marine convection." Cape Grim Annual Scientific Meeting, Melbourne, Australia. (1998)


"Methyl iodide at Cape Grim, Tasmania." SOAPEX II post-campaign meeting, Melbourne, Australia. (1999) With G.A. Sturrock, P.J. Fraser


"Sensitivity analysis of ozone in the Southeast." Models-3 Users Workshop, Durham, NC. (2003)


“An energy and environment course at Rice University.” American Society for Engineering Education Gulf Southwest Conference, Houston, TX


“An energy and environment course at Rice University.” American Society for Engineering Education Gulf Southwest Conference, Houston, TX.


“Characterizing uncertainty in atmospheric response modeling.” AEESP Research and Education Conference, Tampa, FL


"Reaction rate uncertainty in the development of control strategies.." International Conference on Atmospheric Chemical Mechanisms, Davis, CA. (2008)


"Could SO2 emission cuts from coal and ships be accentuating climate warming? IGAC Scientific Meeting." (September 29, 2016)


"Air quality modeling for control strategy development." NOAA/EPA Golden Jubilee Symposium, Durham, NC. (2005)


"An integrated approach to air quality attainment." American Association of Aerosol Research International Specialty Conference, Atlanta, GA. (2005)


"Atmospheric modeling for abatement strategy formulation." Gordon Research Conference on Atmospheric Chemistry, Big Sky, MT. (2005)


"Impact of aerosol light attenuation on plant growth." American Geophysical Union Fall Conference, San Francisco, CA. (2000) With W.L. Chameides


"Low ozone episodes over southern Australia in summer 1999." American Geophysical Union Fall Conference, San Francisco, CA. (1999) With L.L. Duschamps, E. Cordero

 Seminar Speaker

"Electric power generation and air quality.." Carnegie Mellon University Electricity Center, Pittsburgh, PA. (2008)


"DYNAMO Update on Biogenic and Soil Emissions." NASA Air Quality Applied Sciences Team meeting, Atlanta, GA, 2014.


"DYNAMO: DYnamic Inputs of Natural Conditions for Air Quality MOdels." NASA Air Quality Applied Sciences Team Meeting, Cambridge, MA, June 2014.


"Interannual variability in biogenic emissions." NASA Air Quality Applied Sciences Team meeting, Sacramento, CA.


"Interannual variability in biogenic emissions driven by dynamic vegetation conditions." NASA Air Quality Applied Sciences Team meeting, Madison, WI.


"The NASA Air Quality Applied Sciences Team." CenSARA Annual Business Meeting, Dallas, TX.

Editorial Positions
 Member of the Editorial Board, Journal of the Air & Waste Management Association. Taylor & Francis. (2016 - 2016)

Supervised Theses & Dissertations
 Vinitha Chinnakani, M.S. Simulating effects of recharge and pumping stresses on contaminant transport in a multilayered complex groundwater system. (2007) (Thesis Committee Member)

 Shagun Bhat, Ph.D. Characterization, seasonality and source apportionment of fine particulate organic matter at urban and rural sites. (2007) (Thesis Committee Member)

 Andrea Lee Clements, Ph.D. Mass, Composition, Source Identification and Impact Assessment for Fine and Coarse Atmospheric Particles in the Desert Southwest. (2012) (Thesis Committee Member)

 Ying Liu, M.S. Computational Simulation of Secondary Organic Aerosol (SOA) Formation from Toluene Oxidation. (2012) (Thesis Committee Member)

 Basak Karakurt Cevik, M.S. Comparison of estimates of airmass aging using particle and other measurements near Fort Worth, TX. (2012) (Thesis Committee Member)

 Antara Digar, Ph.D. Uncertainty in regional air quality modeling. (2012) (Thesis Director)

 Wei Zhou, PhD Modeling of the dynamical change of air quality and its response to emission trends. (2013) (Thesis Director)

 Longwen Gong, PhD Atmospheric ammonia measurements and implications for particulate matter formation in urban and suburban areas of Texas. (2013) (Thesis Committee Member)

 Benjamin Lash, M.S. Implementing an Improved Soil NOx Parameterization in the Community Multiscale Air Quality Model: Implications for Air Pollution. (2014) (Thesis Director)

 Wei Tang, Ph.D. Incorporation of Satellite Observations into Texas Ozone Attainment Modeling. (2014) (Thesis Director)

 Erin Chavez Figueroa, M.S. Sensitivities of Biogenic Volatile Organic Compounds to Climatological Factors Affected by Drought. (2015) (Thesis Director)

Awards, Prizes, & Fellowships
 CEE Professor of the Year, Rice ASCE Student Chapter (April 2015)

 Distinguished Faculty Associate, Will Rice College (2015)

 NASA Air Quality Applied Sciences Team, 2011-2016, NASA

 Outstanding Faculty Associate Award, Will Rice College, Will Rice College (2011)

 Distinguished Faculty Associate, Will Rice College,

 Distinguished Faculty Associate, Will Rice College,

 National Science Foundation CAREER Award, 2009-2014,

 Doughtie Associate Award, Will Rice College , Will Rice College (2008)

 Outstanding Faculty Associate Award, Will Rice College, Will Rice College (May 2007)

 Rising Star Nominee, Chronicle of Higher Education (2004)

 Graduate Research Fellowship, National Science Foundation (1999-2002)

 Presidential Scholarship, Georgia Institute of Technology (1999-2003)

 Graduate Student Scholarship, Georgia Air & Waste Management Association (2003)

 Paul H. Kutschenreuter Scholarship, American Meteorological Society (1998)

 Coca-Cola Scholar, Coca-Cola Scholars Foundation (1994-1998)

 Tandy Technology Scholar, Tandy Corporation (1994)

 Undergraduate Research Grants, Harvard University (1996-1997)

 Atmospheric Chemistry Colloquium for Emerging Senior Scientists, Brookhaven National Laboratory (2005)

 Summer Policy Colloquium, American Meteorological Society (2003)

 Community Modeling & Analysis System Award of Appreciation, Carolina Environmental Program (2004)

 Best Speaker Prize, Georgia Tech Dept. of Earth & Atmospheric Sciences (2003)

 Best Scientific Publication Award, Georgia Tech Dept. of Earth & Atmospheric Sciences (2003)

Positions Held
 Fellow, Center for Teaching Excellence. (2014 - 2014)