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Records 26 to 50 of 181 records from author Robert Gilliam

2021
Gilliam, R., K. Foley, J. Bash, R. Mathur, N. Possiel, C. Misenis, B. Henderson, G. Sarwar, Keith Wyat Appel, AND G. Pouliot. An evaluation of a two-decade CONUS and Northern Hemispheric timeseries of retrospective WRF simulations. 20th CMAS Conference, Virtual, NC, November 01 - 04, 2021.
Hogrefe, C., R. Gilliam, R. Mathur, B. Henderson, G. Sarwar, Keith Wyat Appel, G. Pouliot, J. Willison, R. Miller, J. Vukovich, A. Eyth, K. Talgo, C. Allen, AND K. Foley. CMAQv5.3.2 ozone simulations over the Northern Hemisphere: model performance and sensitivity to model configuration. 20th Annual CMAS Conference, NA, North Carolina, November 01 - 05, 2021.
D'Ambro, E., H. Pye, J. Bash, J. Boyer, C. Allen, C. Efstathiou, R. Gilliam, L. Reynolds, K. Talgo, AND B. Murphy. Characterizing the air emissions, transport, and deposition of per- and polyfluoroalkyl substances from a fluoropolymer manufacturing facility. International Journal of Environmental Science and Technology. Springer, Heidelburg, Germany, 55(2):862-870, (2021). https://doi.org/10.1021/acs.est.0c06580
East, J., B. Henderson, S. Napelenok, S. Koplitz, R. Pierce, A. Lenzen, R. Gilliam, G. Sarwar, AND F. Garcia-Menendez. Comparing OMI and TROPOMI NO2 data assimilation for estimating NOx emissions (AGU). 2021 AGU Fall Meeting, Virtual, LA, December 13 - 17, 2021.
Hogrefe, C., J. Bash, Jon Pleim, D. Schwede, R. Gilliam, K. Foley, Keith Wyat Appel, AND R. Mathur. Diagnostic Analysis of CMAQ Dry Deposition Fields in the Context of AQMEII4. 38th International Technical Meeting on Air Pollution Modelling and its Application, Barcelona, Virtual, SPAIN, October 18 - 22, 2021.
East, J., B. Henderson, S. Napelenok, S. Koplitz, R. Pierce, A. Lenzen, R. Gilliam, G. Sarwar, AND F. Garcia-Menendez. Enhanced representation of inter-continental pollutant transport by assimilating satellite NO2 and performing NOx emissions inversions. 20th CMAS Conference, Virtual, NC, November 01 - 05, 2021.
Gilliam, R., J. Herwehe, R. Bullock, Jon Pleim, L. Ran, P. Campbell, AND H. Foroutan. Establishing the Suitability of the Model for Prediction Across Scales for Global Retrospective Air Quality Modeling. JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES. American Geophysical Union, Washington, DC, 126(10):e2020JD033588, (2021). https://doi.org/10.1029/2020JD033588
D'Ambro, E., H. Pye, J. Bash, R. Gilliam, L. Reynolds, C. Allen, J. Bowyer, C. Efstathiou, AND K. Talgo. Meeting with North Carolina Department of Environmental Quality : Characterizing the Atmospheric Transport and Deposition of PFAS Emissions from a Manufacturer near Fayetteville, NC. Meeting with North Carolina Department of Environmental Quality, Research Triangle Park, North Carolina, February 04, 2021.
Pleim, Jon, J. Willison, AND R. Gilliam. The Advanced Air Quality Modeling System: The Global MPAS-CMAQ Model, NASA ROSES presentation. NASA ROSES 17.A39 stakeholders Google meeting, Cary, NC, May 28, 2021.
Appel, Keith Wyat, J. Bash, K. Fahey, K. Foley, R. Gilliam, C. Hogrefe, Bill Hutzell, D. Kang, R. Mathur, B. Murphy, S. Napelenok, Chris Nolte, Jon Pleim, G. Pouliot, H. Pye, G. Sarwar, D. Schwede, F. Sidi, T. Spero, D. Wong, L. Ran, AND S. Roselle. The Community Multiscale Air Quality (CMAQ) Model Version 5.3: System Updates and Evaluation. Geoscientific Model Development . Copernicus Publications, Katlenburg-Lindau, Germany, 14:2867-2897, (2021). https://doi.org/10.5194/gmd-14-2867-2021
Gilliam, R., K. Fahey, AND G. Pouliot. U.S. EPA ALPACA Modeling Plans. ALPACA Planning Meeting, NA, North Carolina, October 26, 2021.
Hogrefe, C., S. Galmarini, P. Makar, O. Clifton, J. Flemming, C. Holmes, I. Kioutsioukis, A. Lupascu, D. Schwede, S. Silva, J. Bash, Jon Pleim, R. Gilliam, K. Foley, Keith Wyat Appel, AND R. Mathur. UK-US Collaboration on Air-Quality Modelling & Exposure Science 14th Workshop: Evaluation and Intercomparison of Modeled Atmospheric Deposition over North America and Europe – An Overview of Phase 4 of the Air Quality Model Evaluation International Initiative (AQMEII4). UK-US Collaboration on Air-Quality Modelling & Exposure Science 14th Workshop, N/A, NC, November 18, 2021.
2020
Wong, D., H. Foroutan, Jon Pleim, R. Bullock, R. Gilliam, J. Herwehe, G. Pouliot, C. Hogrefe, AND J. Willison. A Coupled MPAS-CMAQ Modeling System. AMS 2020, Boston, MA, January 13 - 16, 2020.
Kang, D., C. Hogrefe, B. Murphy, V. Isakov, R. Mathur, R. Gilliam, G. Pouliot, B. Henderson, F. Sidi, G. Sarwar, AND T. Spero. Air Quality Changes under COVID-19 Social Distancing in the United States: Observational Analysis and Modeling Sensitivity Study. UK-US Collaboration on Air-Quality Modelling & Exposure Science Virtual Workshop, Virtual, November 16 - 17, 2020.
D'Ambro, E., H. Pye, J. Bash, C. Allen, K. Talgo, K. Brehme, L. Reynolds, R. Gilliam, AND B. Murphy. Building our understanding of PFAS in air using CMAQ. University of North Carolina GASP Seminar, Chapel Hill (webinar), North Carolina, April 20, 2020.
Eder, B., R. Gilliam, G. Pouliot, AND D. Kang. Continuous, Near Real-Time Application and Evaluation of WRF-CMAQ. 100th AMS Annual Meeting, Durham, NC, January 12 - 16, 2020.
D'Ambro, E., H. Pye, J. Bash, J. Boyer, C. Allen, C. Efstathiou, R. Gilliam, L. Reynolds, K. Talgo, AND B. Murphy. Developing Models to Understand Atmospheric Reactions of Per- and Polyfluoroalkyl Substances (PFAS). Atmospheric Chemical Mechanisms Conference, Davis, California, November 05 - 20, 2020.
Pleim, Jon, D. Wong, J. Willison, R. Gilliam, J. Herwehe, R. Bullock, G. Pouliot, C. Hogrefe, D. Kang, Bill Hutzell, R. Mathur, AND L. Ran. Evaluation of the MPAS-CMAQ global air quality modeling system. AMS 2020 meeting, Boston, MA, Boston, Massachusetts, January 12 - 16, 2020.
Gilliam, R., Orren Bullock, J. Pleim, Jerold Herwehe, AND L. Ran. Evaluation of the Model for Prediction Across Scales (MPAS) in a retrospective application with comparisons to WRF. 2020 AMS Annual Meeting, Boston, MA, January 12 - 16, 2020.
Fahey, K., A. Holder, M. Hays, T. Yelverton, H. Pye, N. Briggs, I. George, R. Gilliam, R. Kotchenruther, J. Martin, B. Murphy, AND G. Pouliot. Fuel testing, emissions analysis, and modeling to improve Fairbanks PM2.5. FY2020 R10 Fairbanks RARE First Stakeholders call, NA, May 27, 2020.
Hogrefe, C., J. Bash, Jon Pleim, D. Schwede, R. Gilliam, K. Foley, Keith Wyat Appel, AND R. Mathur. Impacts of Differences in Land Use Characterization and Dry Deposition Schemes on AQMEII4 CMAQ Simulations. 19th Annual CMAS Conference, NA (virtual meeting), North Carolina, October 26 - 30, 2020.
Hogrefe, C., J. Bash, Jon Pleim, D. Schwede, R. Gilliam, K. Foley, Keith Wyat Appel, AND R. Mathur. Impacts of Differences in Land Use Characterization and Dry Deposition Schemes on AQMEII4 CMAQ Simulations, Workshop of the UK-US Collaboration on Air-Quality Modelling & Exposure Science. Workshop of the UK-US Collaboration on Air-Quality Modelling & Exposure Science, NA (Virtual Conference), NC, November 16 - 17, 2020.
Campbell, P., J. Bash, J. Herwehe, AND R. Gilliam. Impacts of tiled land cover characterization in the Model for Predictions Across Scales-Atmosphere (MPAS-A). JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES. American Geophysical Union, Washington, DC, 125(15):e2019JD032093, (2020). https://doi.org/10.1029/2019JD032093
D'Ambro, E., H. Pye, J. Bash, R. Gilliam, AND B. Murphy. PFAS Air Modeling: Research needs and application to a Case Study outside Fayetteville, NC. 45th Annual Air and Waste Management Association Information Exchange, NA, North Carolina, December 09 - 10, 2020.
Matichuk, R., C. Hogrefe, G. Tonnesen, R. Gilliam, S. Napelenok, Bill Hutzell, D. Kang, J. Bash, R. Mathur, G. Pouliot, Keith Wyat Appel, G. Pierce, K. Briggs, AND K. Shonkwiler. Predicting Ozone in the Colorado Front Range using EPA’s Air Quality Model. 19th Annual CMAS Conference, N/A, NC, October 26 - 30, 2020.