Evaluation of 15 years of modeled atmospheric oxidized nitrogen compounds across the contiguous United States.

ABSTRACT: Atmospheric nitrogen oxide and nitrogen dioxide (NO + NO₂, together termed as NO _X ) estimates from annual photochemical simulations for years 2002-2016 are compared to surface network measurements of NO _X and total gas-phase-oxidized reactive nitrogen (NO _Y ) to evaluate the Community Multiscale Air Quality (CMAQ) modeling system performance by U.S. region, season, and time of day. In addition, aircraft measurements from 2011 Deriving Information on Surface Conditions from Column and Vertically Resolved Observations Relevant to Air Quality are used to evaluate how emissions, chemical mechanism, and measurement uncertainty each contribute to the overall model performance. We show distinct seasonal and time-of-day patterns in

SUBMITTER: Toro C 

PROVIDER: S-EPMC8128711 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature