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Fahey, K., A. Carlton, H. Pye, J. Baek, Bill Hutzell, C. Stanier, K. Baker, W. Appel, M. Jaoui, AND J. Offenberg. A framework for expanding aqueous chemistry in the Community Multiscale Air Quality (CMAQ) model version 5.1. Geoscientific Model Development . Copernicus Publications, Katlenburg-Lindau, Germany, 10(4):1587-1605, (2017). https://doi.org/10.5194/gmd-10-1587-2017

Kang, D., R. Mathur, C. Hogrefe, R. Gilliam, G. Pouliot, S. Roselle, W. Appel, R. Matichuk, AND G. Tonnesen. Application of Lidar Data to the Performance Evaluations of CMAQ Model. 97th AMS Conference, Seattle, WA, January 22 - 26, 2017.

Appel, W., S. Napelenok, K. Foley, H. Pye, C. Hogrefe, D. Luecken, J. Bash, S. Roselle, Jon Pleim, H. Foroutan, Bill Hutzell, G. Pouliot, G. Sarwar, K. Fahey, B. Gantt, R. C. GILLIAM, N. Heath, D. Kang, R. Mathur, D. Schwede, T. Spero, David-C Wong, AND Jeff Young. Description and evaluation of the Community Multiscale Air Quality (CMAQ) modeling system version 5.1. Geoscientific Model Development . Copernicus Publications, Katlenburg-Lindau, Germany, 10(4):1703-1732, (2017). https://doi.org/10.5194/gmd-10-1703-2017

Appel, W. Development and application of air quality models at the U.S. EPA. UVA Seminar on Development & Application of airt quality models at the U.S.EPA, Charlottesville, VA, February 21, 2017.

Foroutan, H., Jeff Young, S. Napelenok, L. Ran, W. Appel, R. Gilliam, AND Jon Pleim. Development and evaluation of a physics-based windblown dust emission scheme implemented in the CMAQ modeling system. Journal of Advances in Modeling Earth Systems. John Wiley & Sons, Inc., Hoboken, NJ, 9(1):585-608, (2017).

Pye, H., B. Murphy, L. Xu, N. Ng, A. Carlton, H. Guo, R. Weber, P. Vasilakos, W. Appel, S. Budisulistiorini, J. Surratt, A. Nenes, W. Hu, J. Jimenez, G. saacman-VanWertz, P. Misztal, AND A. Goldstein. On the implications of aerosol liquid water and phase separation for organic aerosol mass. Atmospheric Chemistry and Physics. Copernicus Publications, Katlenburg-Lindau, Germany, 17(1):343-369, (2017). https://doi.org/10.5194/acp-17-343-2017

Appel, W., Jon Pleim, R. Mathur, J. Bash, AND D. Luecken. Overview and Evaluation of the Community Multiscale Air Quality Model Version 5.2. American Meteorological Society Annual Meeting, Seattle, WA, January 22 - 27, 2017.

Mathur, R., Jon Pleim, B. Murphy, AND W. Appel. Recent Enhancements to the Community Multiscale Air Quality Modeling System (CMAQ). CMAQv5.2 Webinar, N/A, N/A, January 31, 2017.

Appel, W. AND K. Foley. The Use of AMET & Automated Scripts for Model Evaluation. AMET & Automated Sxripts for model Evaluation, Durham, NC, March 02, 2017.

Xu, Y., J. Burke, W. Appel, AND S. Roselle. Comparison of human exposure model estimates of PM2.5 exposure variability using fine-scale CMAQ simulations from the Baltimore DISCOVER-AQ evaluation. 2016 CMAS Conference, Chapel Hill, NC, October 24 - 26, 2016.

Seltzer, K., Chris Nolte, T. Spero, W. Appel, AND J. Xing. Evaluation of near surface ozone and particulate matter in air quality simulations driven by dynamically downscaled historical meteorological fields. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 138:42-54, (2016).

Appel, W., S. Napelenok, C. Hogrefe, K. Foley, G. Pouliot, S. Roselle, AND Jon Pleim. Evaluation of the Community Multi-scale Air Quality (CMAQ) Model Version 5.1. US-UK Workshop, London, UK, September 29 - 30, 2016.

Appel, W., S. Napelenok, C. Hogrefe, K. Foley, G. Pouliot, B. Murphy, D. Luecken, AND N. Heath. Evaluation of the Community Multi-scale Air Quality (CMAQ) Model Version 5.2. ITM 2016: 35th International Technical Meeting on Air Pollution Modeling and Its Application, Crete, GREECE, October 03 - 07, 2016.

Appel, W., S. Napelenok, C. Hogrefe, K. Foley, G. Pouliot, B. Murphy, D. Luecken, AND N. Heath. Evaluation of the Community Multi-scale Air Quality Model Version 5.2. ITM 2016: 35th International Technical Meeting on Air Pollution Modeling and Its Application, Crete, GREECE, October 03 - 07, 2016.

Appel, W., S. Napelenok, C. Hogrefe, K. Foley, G. Pouliot, B. Murphy, D. Luecken, AND N. Heath. Evaluation of the Community Multiscale Air Quality (CMAQ) Model Version 5.2. ITM 2016: 35th International Technical Meeting on Air Pollution Modeling and Its Application, Chania, GREECE, October 03 - 07, 2016.

Heath, N., Jon Pleim, R. Gilliam, D. Kang, M. Woody, K. Foley, AND W. Appel. Impacts of WRF lightning assimilation on offline CMAQ simulations. 2016 CMAS Conference, Chapel Hill, NC, October 24 - 26, 2016.

Pleim, Jon, R. Gilliam, W. Appel, AND L. Ran. Recent Advances in Modeling of the Atmospheric Boundary Layer and Land Surface in the Coupled WRF-CMAQ Model. Chapter 64, Air Pollution Modeling and its Application XXIV. Springer International Publishing AG, Cham (ZG), Switzerland, , 391-396, (2016).

Appel, W. The Use of Air Quality Models in U.S. EPA Research and Regulations. UVA Seminar Series, Charlottesville, VA, March 29, 2016.

Appel, W. The Use of Air Quality Models in U.S. EPA Research and Regulations (UVA presentation). University of Virginia Undergraduate Seminar Series, Charlottesville, VA, March 29, 2016.

Appel, W., K. Foley, C. Hogrefe, H. Pye, AND B. Murphy. Updates to the CMAQ Post Processing and Evaluation Tools for 2016. 2016 CMAS Conference, Chapel Hill, NC, October 24 - 26, 2016.

Nolte, Chris, W. Appel, J. Kelly, P. Bhave, K. Fahey, J. Collett, Jr., L. Zhang, AND Jeff Young. Evaluation of the Community Multiscale Air Quality (CMAQ) modeling system against size-resolved measurements of inorganic particle composition across sites in North America. Geoscientific Model Development . Copernicus Publications, Katlenburg-Lindau, Germany, 8(9):2877-2892, (2015).

Appel, W., S. Napelenok, C. Hogrefe, G. Pouliot, B. Eder, K. Foley, AND S. Roselle. Evaluation of the Community Multiscale Air Quality model version 5.1. 14th Annual CMAS Conference, Chapel Hill, NC, October 05 - 07, 2015.

Mathur, R., Jon Pleim, J. Xing, M. Gan, David-C Wong, C. Hogrefe, W. Appel, R. Gilliam, AND S. Roselle. Examining Air Quality-Meteorology Interactions on Regional to Hemispheric Scales. 7th International Workshop on Air Quality Forescasting Research, College Park, MD, September 01 - 03, 2015.

Appel, W., R. Gilliam, Jon Pleim, G. Pouliot, S. Roselle, AND R. Mathur. Fine-scale application of the WRF-CMAQ modeling system to the 2013 DISCOVER-AQ San Joaquin Valley study. American Meteorological Society Annual Meeting, Phoenix, AZ, January 07, 2015.

Appel, W., R. Gilliam, Jon Pleim, G. Pouliot, S. Roselle, R. Mathur, AND D. Kang. Fine-scale application of the coupled WRF-CMAQ model to the 2013 DISCOVER-AQ San Joaquin Valley campaign. 2015 DISCOVER-AQ Science Team Meeting, Boulder, CO, May 04 - 08, 2015.