High Resolution Air Quality Modeling for the Southeast US During SENEX-2013

Stuart A McKeen1, Ravan Ahmadov2, Wayne M Angevine3, Michael Trainer4, Kenneth C. Aikin5, Charles A Brock6, Steven S Brown7, Pete Edwards8, Joost A de Gouw9, Jessica Gilman6, John S Holloway5, Brian M Lerner10, Jin Liao11, Ann Middlebrook6, Milos Z Markovic12, J A Neuman13, John B Nowak14, Joseph Olson15, Dr. Joshua Peter Schwarz, PhD16, Jeff Peischl5, Ilana B Pollack17, Dr. James Roberts, PhD6, Patrick R Veres18, Carsten Warneke11, Thomas B Ryerson19 and Bin Yuan5, (1)NOAA ESRL/CSL and CU Boulder/CIRES, Boulder, CO, United States, (2)University of Colorado at Boulder, CIRES, Boulder, CO, United States, (3)Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, Boulder, United States, (4)Chemical Sciences Laboratory, NOAA Earth System Research Laboratories, Boulder, CO, United States, (5)CIRES, Boulder, CO, United States, (6)NOAA Chemical Sciences Laboratory, Boulder, United States, (7)NOAA, Earth System Research Laboratory, Boulder, CO, United States, (8)Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, United Kingdom, (9)University of Colorado Boulder, Department of Chemistry, Boulder, United States, (10)Aerodyne Research, Inc., Billerica, MA, United States, (11)NOAA Boulder, Boulder, CO, United States, (12)Environment Canada Toronto, Toronto, ON, Canada, (13)NOAA Earth System Research Lab, Boulder, CO, United States, (14)Aerodyne Research Inc., Billerica, MA, United States, (15)University of Colorado at Boulder, Boulder, United States, (16)NOAA, Chemical Sciences Laboratory, Boulder, United States, (17)NOAA ESRL Chemical Sciences Division, Boulder, CO, United States, (18)NOAA Boulder, Boulder, United States, (19)Scientific Aviation, Boulder, CO, United States
Abstract:
An intensive measurement campaign - Studying the Interactions Between Natural and Anthropogenic Emissions at the Nexus of Climate Change and Air Quality (SENEX) was carried out by NOAA and other research institutes over the Southeast US during June-July, 2013. A large quantity of meteorological and in-situ chemical composition in-situ measurements were obtained on board the NOAA WP-3D research aircraft, with additional surface monitoring network observations.

Results from fully coupled meteorology/air-quality simulations using the WRF-Chem model on 12km grid resolution covering the Eastern continental US during the SENEX time period are presented here. We focus on simulations of ozone and its precursors, related oxidants, particulate matter mass and composition.

A recent US EPA anthropogenic emission inventory, NEI-2011 (version 1), is used in the base model simulation. Comparison of model results with the observations are used to quantify model biases and correlations under different emission scenarios, evaluate current estimates of biogenic hydrocarbon fluxes and their impact on air quality over the Southeast US.