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Atmospheric Nitrogen Deposition Modeling of the Chesapeake Bay: Current Applications and Future Directions
Citation:
Bash, J., L. Linker, P. Campbell, K. Foley, G. Bhatt, G. Shenk, J. Zhang, AND T. Spero. Atmospheric Nitrogen Deposition Modeling of the Chesapeake Bay: Current Applications and Future Directions. 2018 Annual CMAS Conference, Chapel Hill, NC, October 22 - 24, 2018.
Impact/Purpose:
The Community Mulit-scale Air Quality (CMAQ) model’s use in the Chesapeake Bay Program 2017 Mid-term assessment will be presented. This is a successful example of an application driven model development and a systems approach to modeling difficult environmental issues.
Description:
The Community Mulit-scale Air Quality (CMAQ) model’s use in the Chesapeake Bay Program 2017 Mid-term assessment will be presented. This is a successful example of an application driven model development and a systems approach to modeling difficult environmental issues. A general overview of the Chesapeake Bay and its total maximum daily load (TMD) will be presented. This is then followed by a description and assessment of retrospective and future CMAQ simulations used in the 2017 min-point assessment. The increasing importance of ammonia deposition will be discussed. The reduced form Chesapeake Bay model and how CMAQ result fit into it will be presented. The reduced form model’s role in engaging stakeholders will be discussed. The presentation then concludes with a discussion on the development of the next generation of modeling tools proposed for the 2025 Chesapeake Bay Program TMDL assessment.
