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Community Multiscale Air Quality (CMAQ) Modeling for Regional and Hemispheric Scales
Citation:
Schwede, D. Community Multiscale Air Quality (CMAQ) Modeling for Regional and Hemispheric Scales. WORKSHOP ON MEASUREMENT-MODEL FUSION for GLOBAL TOTAL ATMOSPHERIC DEPOSITION (MMF-TAD), Geneva, SWITZERLAND, February 28 - March 02, 2017.
Impact/Purpose:
The National Exposure Research Laboratory (NERL) Computational Exposure Division (CED) develops and evaluates data, decision-support tools, and models to be applied to media-specific or receptor-specific problem areas. CED uses modeling-based approaches to characterize exposures, evaluate fate and transport, and support environmental diagnostics/forensics with input from multiple data sources. It also develops media- and receptor-specific models, process models, and decision support tools for use both within and outside of EPA.
Description:
The CMAQ model is a Eulerian model that produces gridded values of atmospheric concentration and deposition. Recent updates to the model are highlighted that impact estimates of dry and wet deposition of nitrogen, sulfur and base cations. Output from the CMAQ model is used in the measurement-model fusion method used to create the National Atmospheric Program's (NADP) Total Deposition (TDEP) map product.
