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Modelling the Air–Surface Exchange of Ammonia from the Field to Global Scale
Citation:
Bash, J., C. Flechard, R. Massad, M. Sutton, R. Wichink Kruit, S. Gernermont, P. Cellier, L. Horvath, B. Grosz, J. Drouet, M. Adon, AND M. Theobald. Modelling the Air–Surface Exchange of Ammonia from the Field to Global Scale. Chapter 5, Review and Integration of Biosphere-Atmosphere Modelling of Reactive Trace Gases and Volatile Aerosols. Springer Netherlands, Dordrecht, Netherlands, , 153-161, (2015).
Impact/Purpose:
The National Exposure Research Laboratory's (NERL's) Atmospheric Modeling and Analysis Division (AMAD) conducts research in support of EPA's mission to protect human health and the environment. AMAD's research program is engaged in developing and evaluating predictive atmospheric models on all spatial and temporal scales for forecasting the Nation's air quality and for assessing changes in air quality and air pollutant exposures, as affected by changes in ecosystem management and regulatory decisions. AMAD is responsible for providing a sound scientific and technical basis for regulatory policies based on air quality models to improve ambient air quality. The models developed by AMAD are being used by EPA, NOAA, and the air pollution community in understanding and forecasting not only the magnitude of the air pollution problem, but also in developing emission control policies and regulations for air quality improvements.
Description:
The Working Group addressed the current understanding and uncertainties in the processes controlling ammonia (NH3) bi-directional exchange, and in the application of numerical models to describe these processes. As a starting point for the discussion, the Working Group drew on the background document prepared by Flechard et al. (2013) specifically for the workshop. Based on these discussions by the Working Group, the present report documents the assessment and recommendations for modeling of NH3 exchange from the field to global scales.
