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Dr. Yunsoo Choi, Associate Professor

Department of Earth and Atmospheric Sciences, College of Natural Sciences and Mathematics



  • Areas of expertise

    • Sustainable energy and transportation policy
    • Wind and solar energy Forecasting
    • Artificial intelligence and machine learning for air quality modeling
  • Awards

    • Glen Cass Award - April 2007
    • Achievement Award from Earth Resources Technology, December 30, 2010
  • Publications

    • Pan, S., Choi, Y., Roy, A., and Jeon, W., 2017, Allocating emissions to 4km and 1km horizontal spatial resolutions and its impact on simulated Nox and O3 in Houston, TX, in Atmospheric Environment, 164, 398-415
    • Jeon, W., Choi, Y., Roy, A., Pan, S., Price, D., Hwang, M-K., Kim, K. R., and Oh, I., 2017, Investigation of Primary Factors Affecting the Variation of Modeled Oak Pollen Concentrations: A case study for Southeast Texas in 2010, accepted in Asia-Pacific Journal of Atmospheric Sciences
    • Kotasakis, A., Morris, G.A., Lefer, B., Jeon, W., Roy, A., Minschwaner, K., Thompson, A., Choi, Y., 2017, Ozone production by corona discharges during a convective event in DISCOVER-AQ Houston, in Atmospheric Environment, doi:10.1016/j.atmosenv.2017.04.018
    • Leong, Y., Sanchez, N., Wallace, H., Karakurt Cevik, B., Hernandez, C., Han, Y., Flynn, J., Massoli, P., Floerchinger, C., Fortner, E., Herndon, S., Bean, J., Hildebrandt Ruiz, L., Jeon, W., Choi, Y., Lefer, B., Griffin, R., 2017, Overview of Surface measurements and Spatial Characterization of Submicron Particulate matter during the DISCOVER-AQ 2013 Campaign in Houston, in press in Journal of Air & Waste Management Association
    • Souri, A.H., Choi, Y., Jeon, W., Woo, J-H., Zhang, Q., Kurokawa, J-I., 2017, Remote-sensing evidence of decadal changes in major tropospheric ozone precursors over East Asia, in Journal of Geophysical Research-Atmosphere, doi:10.1002/2016JD025663
    • Roy Anirban, Yunsoo Choi, 2016, Effect of ambient temperature on species lumping for total organic gases in gasoline exhaust emissions, in Atmospheic Environment, doi:10.1016/j.atmosenv.2016.11.057
    • Shuai Pan, Yunsoo Choi, Wonbae Jeon, Anirban Roy, David A. Westenbarger, Hyun Cheol Kim, 2016, Impact of high-resolution sea surface temperature, emission spikes and wind on simulated surface ozone in Houston, Texas during a high ozone episode, in Atmospheric Environment, doi:10.1016/j.atmosenv.2016.12.030
    • Wonbae Jeon, Yunsoo Choi, Peter Percell, Amir Hossein Souri, Chang-Keun Song, Soon-Tae Kim, and Jhoon Kim, 2016, Computationally efficient air quality forecasting tool: implementaion of STOPS v1.5 model into CMAQ v5.0.2 for a prediction of Asian dust, Geoscientific Model Development 9(10): 3671-3684, doi:10.5194/gmd-9-3671-2016.
    • Lijun Diao, Yunsoo Choi, Beata Czader, Xiangshang Li, Shuai Pan, Anirban Roy, Amir Hossein Souri, Mark Estes, and Wonbae Jeon, 2016, Discrepancies between modeled and observed nocturnal isoprene in an urban enviornment and the possible causes: A case study in Houston, Atmospheric Research, 181, 257-264.
    • Wonbae Jeon, Yunsoo Choi, Peter Percell, Amir Hossein Souri, Chang-Keun Song, Soon-Tae Kim, and Jhoon Kim, 2016, The new implementation of a computationally efficient modeling tool (STOPS v1.5) into CMAQ v5.0.2 and its application for a more accurate prediction of Asian Dust, 2016, Geoscientific Model Development Discussion, doi:10.5194/gmd-20160180.


  • Patents


    Not available

  • Funded Research

    • Development of physically relevant convection and advection schemes to accurately quantify vertical and long-range transport in air quality modeling. September 2017 – April 2020
    • The use of Deep Neural Network for the wind fields and air quality predictions over Daejeon. July 2017 – June 2018
    • Effects of temperature on gasoline exhaust VOC speciation with implications to air quality modeling, 2015-2017
    • Evaluation of the air quality impacts of increased motor vehicle electrification in the Houston Metropolitan Area in a future year. February – June 2017
    • Unique approaches to rank atmospheric Secondary Organic Aerosol (SOA) hydrocarbon precursors, February-August 2017
    • The use of Artificial Intelligence Deep Learning to predict ozone concentration over Seoul, May-December 2017
    • Integrating Surface and Satellite Observations to Provide an Optimal Estimate of Surface Distribution of PM, May-December 2017
    • CMAQ Modeling Archive for Exceptional Events Analyses. May 2015-July 2016
    • Development and an interactive air quality forecasting system reflecting real-time atmospheric phenomena, May-December 2016
    • Networking and Computational Infrastructure for collecting and interpreting sensor data with respect to aerosolized chemical and biological threats, September 2014 – July 2015
    • Development of pollen modeling prototype. June-August 2015
    • Constraining NOx emissions using satellite NO2 column measurements over the Southeast Texas. January-September 2015
    • Impact of uncertainties in NO2 and HONO emissions and chemistry on radicals and ozone in southeast Texas, September 2013-July 2015
    • Development and Evaluation of a Hybrid Eulerian-Lagrangian air quality model for simulating large air pollution events, May-November 2015
    • Preparation of CMAQ input data for the North California Domain, January-December 2014
    • Development of chemistry and transport modules in numerical weather prediction, June-December 2013


  • Curriculum Vitae

  • Contact information

    426F Science and Research Building 1
    Phone: 713-743-9748