Sciences and Exploration Directorate

Laurence W Twigg



Org Code: 614

Mail Code: 614
Greenbelt, MD 20771




Roots, M., J. T. Sullivan, R. Delgado, L. Twigg, and B. Demoz. 2023. An integrated monitoring system (IMS) for air quality: Observations of a unique ozone-exceedance event in Maryland Atmospheric Environment 313 120028 [10.1016/j.atmosenv.2023.120028]

Liu, X., Y. Wang, S. Wasti, et al. W. Li, E. Soleimanian, J. Flynn, T. Griggs, S. Alvarez, J. T. Sullivan, M. Roots, L. Twigg, G. Gronoff, T. Berkoff, P. Walter, M. Estes, J. W. Hair, T. Shingler, A. J. Scarino, M. Fenn, and L. Judd. 2023. Evaluating WRF-GC v2.0 predictions of boundary layer height and vertical ozone profile during the 2021 TRACER-AQ campaign in Houston, Texas Geoscientific Model Development 16 (18): 5493-5514 [10.5194/gmd-16-5493-2023]

Sullivan, J. T., A. Apituley, N. Mettig, et al. K. Kreher, K. E. Knowland, M. Allaart, A. Piters, M. Van Roozendael, P. Veefkind, J. R. Ziemke, N. Kramarova, M. Weber, A. Rozanov, L. Twigg, G. Sumnicht, and T. J. McGee. 2022. Tropospheric and stratospheric ozone profiles during the 2019 TROpomi vaLIdation eXperiment (TROLIX-19) Atmospheric Chemistry and Physics 22 (17): 11137-11153 [10.5194/acp-22-11137-2022]

Sullivan, J. T., T. J. McGee, R. M. Stauffer, et al. A. M. Thompson, A. Weinheimer, C. Knote, S. Janz, A. Wisthaler, R. Long, J. Szykman, J. Park, Y. Lee, S. Kim, D. Jeong, D. Sanchez, L. Twigg, G. Sumnicht, T. Knepp, and J. R. Schroeder. 2019. Taehwa Research Forest: a receptor site for severe domestic pollution events in Korea during 2016 Atmospheric Chemistry and Physics 19 5051-5067 []

Sullivan, J. T., T. Berkoff, G. Gronoff, et al. T. Knepp, M. Pippin, D. Allen, L. Twigg, R. Swap, M. Tzortziou, A. M. Thompson, R. M. Stauffer, G. M. Wolfe, J. Flynn, S. E. Pusede, L. Judd, W. Moore, B. D. Baker, J. Al-Saadi, and T. J. McGee. 2019. The Ozone Water-Land Environmental Transition Study (OWLETS): An Innovative Strategy for Understanding Chesapeake Bay Pollution Events Bulletin of the American Meteorological Society 100 (2): 291-306 [10.1175/BAMS-D-18-0025.1]

McGee, T. J., J. T. Sullivan, L. W. Twigg, et al. G. K. Sumnicht, J. Barnes, T. Leblanc, and S. McDermid. 2018. Lidar validation measurements at the NOAA Mauna Loa Observatory NDACC Station Lidar Remote Sensing for Environmental Monitoring XVI [10.1117/12.2324714]

Wang, L., M. J. Newchurch, R. J. Alvarez II, et al. T. A. Berkoff, S. S. Brown, W. Carrion, R. J. De Young, B. J. Johnson, R. Ganoe, G. Gronoff, G. Kirgis, S. Kuang, A. O. Langford, T. Leblanc, E. E. McDuffie, T. J. McGee, D. Pliutau, C. J. Senff, J. T. Sullivan, G. Sumnicht, L. W. Twigg, and A. J. Weinheimer. 2017. Quantifying TOLNet ozone lidar accuracy during the 2014 DISCOVER-AQ and FRAPPÉ campaigns Atmospheric Measurement Techniques 10 (10): 3865-3876 [10.5194/amt-10-3865-2017]

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]

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. 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]

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, 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, 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, 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]

Stiller, G., M. Kiefer, E. Eckert, et al. T. Clarmann, S. Kellmann, M. Garcia-Comas, B. Funke, T. Leblanc, E. Fetzer, L. Froidevaux, M. Gomez, E. Hall, D. Hurst, A. Jordan, N. Kampfer, A. Lambert, I. McDermid, T. McGee, L. Miloshevich, G. Nedoluha, W. Read, M. Schneider, M. Schwartz, C. Straub, G. Toon, L. Twigg, K. Walker, and D. Whiteman. 2012. Validation of MIPAS IMK/IAA temperature, water vapor, and ozone profiles with MOHAVE-2009 campaign measurements Atmos Meas Tech 5 (2): 289-320 [10.5194/amt-5-289-2012]

Leblanc, T., T. Walsh, I. McDermid, et al. G. Toon, J. Blavier, B. Haines, W. Read, B. Herman, E. Fetzer, S. Sander, T. Pongetti, D. Whiteman, T. McGee, L. Twigg, G. Sumnicht, D. Venable, M. Calhoun, A. Dirisu, D. Hurst, A. Jordan, E. Hall, L. Miloshevich, H. Vomel, C. Straub, N. Kampfer, G. Nedoluha, R. Gomez, K. Holub, S. Gutman, J. Braun, T. Vanhove, G. Stiller, and A. Hauchecorne. 2011. Measurements of Humidity in the Atmosphere and Validation Experiments (MOHAVE)-2009: overview of campaign operations and results Atmos Meas Tech 4 (12): 2579–2605 [10.5194/amt-4-2579-2011]

Steinbrecht, W., T. McGee, L. Twigg, et al. H. Claude, F. Schonenborn, G. Sumnicht, D. Silbert, and R. Neuber. 2009. Intercomparison of stratospheric ozone and temperature profiles during the October 2005 Hohenpeißenberg Ozone Profiling Experiment (HOPE) Atmos Meas Tech 2 (1): 125-145 [10.5194/amt-2-125-2009]

Nardi, B., J. Gille, J. Barnett, et al. C. Randall, V. Harvey, A. Waterfall, J. Reburn, T. Leblanc, T. McGee, L. Twigg, A. Thompson, S. Godin-Beekmann, P. Bernath, B. Bojkov, C. Boone, C. Cavanaugh, M. Coffey, J. Craft, C. Craig, V. Dean, T. Eden, G. Francis, L. Froidevaux, C. Halvorson, J. Hannigan, C. Hepplewhite, D. Kinnison, R. Khosravi, C. Krinsky, A. Lambert, H. Lee, J. Loh, S. Massie, I. McDermid, D. Packman, B. Torpy, J. Valverde-Canossa, K. Walker, D. Whiteman, J. Witte, and G. Young. 2008. Initial validation of ozone measurements from the High Resolution Dynamics Limb Sounder J. Geophys. Res. 113 (D16): D16S36 [10.1029/2007JD008837]

Froidevaux, L., Y. Yang, A. Lambert, et al. N. Livesey, W. Read, J. Waters, E. Browell, J. Hair, M. Avery, T. McGee, L. Twigg, G. Sumnicht, K. Jucks, J. Margitan, B. Sen, R. Stachnik, G. Toon, P. Bernath, C. Boone, K. Walker, M. Filipiak, R. Harwood, R. Fuller, G. Manney, M. Schwartz, W. Daffer, B. Drouin, R. Cofield, D. Cuddy, R. Jarnot, B. Knosp, V. Perun, W. Snyder, P. Stek, R. Thurstans, and P. Wagner. 2008. Validation of Aura Microwave Limb Sounder stratospheric ozone measurements J. Geophys. Res. 113 (D15): D15S20 [10.1029/2007JD008771]

Schoeberl, M. R., S. R. Kawa, A. R. Douglass, et al. T. J. McGee, E. V. Browell, J. Waters, N. Livesey, W. Read, L. Froidevaux, M. L. Santee, H. C. Pumphrey, L. R. Lait, and L. Twigg. 2006. Chemical observations of a polar vortex intrusion J. Geophys. Res. 111 (D20): D20306 [10.1029/2006JD007134]

Lait, L. R., P. A. Newman, M. R. Schoeberl, et al. T. McGee, L. Twigg, E. V. Browell, M. A. Fenn, W. B. Grant, C. F. Butler, R. Bevilacqua, J. Davies, H. DeBacker, S. B. Andersen, E. Kyro, R. Kivi, P. von der Gathen, H. Claude, A. Benesova, P. Skrivankova, V. Dorokhov, I. Zaitcev, G. Braathen, M. Gil, Z. Litynska, D. Moore, and M. Gerding. 2004. Non-coincident inter-instrument comparisons of ozone measurements using quasi-conservative coordinates Atmos. Chem. Phys 4 2345-2352