Dr. John T. Sullivan

Dr. John T. Sullivan

  • Rsch AST, Atmospheric Chemistry & Dyn
  • 301.614.5549
  • NASA/GSFC
  • Mail Code: 614
  • GREENBELT , MD 20771
  • Employer: NASA
  • Brief Bio

    Dr. John T. Sullivan currently works in the Atmospheric Chemistry and Dynamics Laboratory at the NASA Goddard Space Flight Center (Greenbelt, MD). His expertise is in performing measurements of atmospheric constituents using active remote sensing techniques, such as lidar (light detection and ranging), for applications such as air quality, satellite validation, and climate change. Dr. Sullivan has been critical in designing, calibrating, and deploying a transportable lidar for measuring tropospheric ozone profiles in NASA campaigns, such as DISCOVER-AQ and KORUS-AQ. He was awarded the NASA Postdoctoral Program (NPP) Fellowship to continue his contribution of novel observations of the atmosphere to further NASA’s science exploration.

    Research Interests

    Atmospheric Monitoring

    Utilize spectral and optical properties of the atmosphere to monitor important atmospheric constituents relating to air quality and human health. Understand the photochemical and diurnal cycle of urban/anthropogenic pollutants and their impacts on the outdoor environment. Examine the effects of topography on pollutants, particularly in the presence of complex terrain such as mountains or coastlines. Utilize various established networks of pollutant monitors to infer statistically significant spatial and temporal gradients in pollution. Recognize the physical and chemical parameterization applied in air quality modeling and forecasting. 

    Education

    NASA Postdoctoral Program (NPP) Fellow, 2015-current, Advisor: Thomas J. McGee

    Ph.D., Atmospheric Physics, University of Maryland, Baltimore County, 2015

    Dissertation: Improving the Current Understanding of the Evolution and Vertical Processes of Tropospheric Ozone Using a Ground Based Differential Absorption Lidar, Advisor: Raymond M. Hoff

    M.S., Atmospheric Physics, University of Maryland, Baltimore County, 2012

    B.A. Physics, McDaniel College, 2010

    Professional Societies

    American Geophysical Union, 2011 - Present
    American Meteorological Society, 2012 - Present

    Selected Publications

    Refereed

    Sullivan, J. T., S. D. Rabenhorst, J. Dreessen, et al. T. J. McGee, R. Delgado, L. Twigg, and G. Sumnicht. 2017. "Lidar observations revealing transport of O3 in the presence of a nocturnal low-level jet: Regional implications for “next-day” pollution." Atmospheric Environment, 158 (June 2017): 160-171 [10.1016/j.atmosenv.2017.03.039]

    Dreessen, J., J. Sullivan, and R. Delgado. 2016. "Observations and Impacts of Transported Canadian Wildfire Smoke on Ozone and Aerosol Air Quality in the Maryland Region on 9-12 June, 2015." Journal of the Air & Waste Management Association, 66 (no. 9): 842-862 [10.1080/10962247.2016.1161674]

    Sullivan, J. T., T. J. McGee, R. M. Hoff, G. Sumnicht, and L. Twigg. 2016. "Characterizing the Vertical Processes of Ozone in Colorado’s Front Range Using the GSFC Ozone DIAL." EPJ Web of Conferences, 119: 05014 [10.1051/epjconf/201611905014]

    Newchurch, M. J., S. Kuang, T. Leblanc, et al. R. J. Alvarez, A. O. Langford, C. J. Senff, J. F. Burris, T. J. McGee, J. T. Sullivan, R. J. DeYoung, J. Al-Saadi, M. Johnson, and A. Pszenny. 2016. "TOLNET – A Tropospheric Ozone Lidar Profiling Network for Satellite Continuity and Process Studies." EPJ Web of Conferences, 119: 20001 [10.1051/epjconf/201611920001]

    Sullivan, J. T., T. J. McGee, A. O. Langford, et al. R. J. Alvarez, C. J. Senff, P. J. Reddy, A. M. Thompson, L. W. Twigg, G. K. Sumnicht, P. Lee, A. Weinheimer, C. Knote, R. W. Long, and R. M. Hoff. 2016. "Quantifying the contribution of thermally driven recirculation to a high-ozone event along the Colorado Front Range using lidar." Journal of Geophysical Research: Atmospheres, 121: [10.1002/2016jd025229]

    Sullivan, J. T., T. J. McGee, R. DeYoung, et al. L. W. Twigg, G. K. Sumnicht, D. Pliutau, T. Knepp, and W. Carrion. 2015. "Results from the NASA GSFC and LaRC Ozone Lidar Intercomparison: New Mobile Tools for Atmospheric Research." Journal of Atmospheric and Oceanic Technology, 32 (10): 1779-1795 [10.1175/jtech-d-14-00193.1]

    Sullivan, J., T. McGee, T. Leblanc, G. Sumnicht, and L. Twigg. 2015. "Optimization of the GSFC TROPOZ DIAL retrieval using synthetic lidar returns and ozonesondes--Part 1: Algorithm validation." Atmospheric Measurement Techniques, 8 (10): 4133--4143 [10.5194/amt-8-4133-2015]

    Sullivan, J. T., T. J. Mcgee, A. M. Thompson, et al. R. B. Pierce, G. K. Sumnicht, L. W. Twigg, E. Eloranta, and R. M. Hoff. 2015. "Characterizing the lifetime and occurrence of stratospheric-tropospheric exchange events in the rocky mountain region using high-resolution ozone measurements." Journal of Geophysical Research: Atmospheres, 120 (24): 12410--12424 [10.1002/2015JD023877]

    Sullivan, J., T. McGee, G. Sumnicht, L. Twigg, and R. Hoff. 2014. "A mobile differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore--Washington, DC region." Atmospheric Measurement Techniques, 7 (10): 3529--3548 [10.5194/amt-7-3529-2014]

    Brief Bio

    Dr. John T. Sullivan currently works in the Atmospheric Chemistry and Dynamics Laboratory at the NASA Goddard Space Flight Center (Greenbelt, MD). His expertise is in performing measurements of atmospheric constituents using active remote sensing techniques, such as lidar (light detection and ranging), for applications such as air quality, satellite validation, and climate change. Dr. Sullivan has been critical in designing, calibrating, and deploying a transportable lidar for measuring tropospheric ozone profiles in NASA campaigns, such as DISCOVER-AQ and KORUS-AQ. He was awarded the NASA Postdoctoral Program (NPP) Fellowship to continue his contribution of novel observations of the atmosphere to further NASA’s science exploration.

    Selected Publications

    Refereed

    Sullivan, J. T., S. D. Rabenhorst, J. Dreessen, et al. T. J. McGee, R. Delgado, L. Twigg, and G. Sumnicht. 2017. "Lidar observations revealing transport of O3 in the presence of a nocturnal low-level jet: Regional implications for “next-day” pollution." Atmospheric Environment 158 (June 2017): 160-171 [10.1016/j.atmosenv.2017.03.039]

    Dreessen, J., J. Sullivan, and R. Delgado. 2016. "Observations and Impacts of Transported Canadian Wildfire Smoke on Ozone and Aerosol Air Quality in the Maryland Region on 9-12 June, 2015." Journal of the Air & Waste Management Association 66 (no. 9): 842-862 [10.1080/10962247.2016.1161674]

    Sullivan, J. T., T. J. McGee, R. M. Hoff, G. Sumnicht, and L. Twigg. 2016. "Characterizing the Vertical Processes of Ozone in Colorado’s Front Range Using the GSFC Ozone DIAL." EPJ Web of Conferences 119 05014 [10.1051/epjconf/201611905014]

    Newchurch, M. J., S. Kuang, T. Leblanc, et al. R. J. Alvarez, A. O. Langford, C. J. Senff, J. F. Burris, T. J. McGee, J. T. Sullivan, R. J. DeYoung, J. Al-Saadi, M. Johnson, and A. Pszenny. 2016. "TOLNET – A Tropospheric Ozone Lidar Profiling Network for Satellite Continuity and Process Studies." EPJ Web of Conferences 119 20001 [10.1051/epjconf/201611920001]

    Sullivan, J. T., T. J. McGee, A. O. Langford, et al. R. J. Alvarez, C. J. Senff, P. J. Reddy, A. M. Thompson, L. W. Twigg, G. K. Sumnicht, P. Lee, A. Weinheimer, C. Knote, R. W. Long, and R. M. Hoff. 2016. "Quantifying the contribution of thermally driven recirculation to a high-ozone event along the Colorado Front Range using lidar." Journal of Geophysical Research: Atmospheres 121 [10.1002/2016jd025229]

    Sullivan, J. T., T. J. McGee, R. DeYoung, et al. L. W. Twigg, G. K. Sumnicht, D. Pliutau, T. Knepp, and W. Carrion. 2015. "Results from the NASA GSFC and LaRC Ozone Lidar Intercomparison: New Mobile Tools for Atmospheric Research." Journal of Atmospheric and Oceanic Technology 32 (10): 1779-1795 [10.1175/jtech-d-14-00193.1]

    Sullivan, J., T. McGee, T. Leblanc, G. Sumnicht, and L. Twigg. 2015. "Optimization of the GSFC TROPOZ DIAL retrieval using synthetic lidar returns and ozonesondes--Part 1: Algorithm validation." Atmospheric Measurement Techniques 8 (10): 4133--4143 [10.5194/amt-8-4133-2015]

    Sullivan, J. T., T. J. Mcgee, A. M. Thompson, et al. R. B. Pierce, G. K. Sumnicht, L. W. Twigg, E. Eloranta, and R. M. Hoff. 2015. "Characterizing the lifetime and occurrence of stratospheric-tropospheric exchange events in the rocky mountain region using high-resolution ozone measurements." Journal of Geophysical Research: Atmospheres 120 (24): 12410--12424 [10.1002/2015JD023877]

    Sullivan, J., T. McGee, G. Sumnicht, L. Twigg, and R. Hoff. 2014. "A mobile differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore--Washington, DC region." Atmospheric Measurement Techniques 7 (10): 3529--3548 [10.5194/amt-7-3529-2014]

                                                                                                                                                                                            
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