Articles | Volume 14, issue 6
Geosci. Model Dev., 14, 3969–3993, 2021
https://doi.org/10.5194/gmd-14-3969-2021
Geosci. Model Dev., 14, 3969–3993, 2021
https://doi.org/10.5194/gmd-14-3969-2021

Model evaluation paper 29 Jun 2021

Model evaluation paper | 29 Jun 2021

Evaluation of the offline-coupled GFSv15–FV3–CMAQv5.0.2 in support of the next-generation National Air Quality Forecast Capability over the contiguous United States

Xiaoyang Chen et al.

Data sets

Air Quality System Data Mart [internet database] United States Environmental Protection Agency https://www.epa.gov/airdata

Clean Air Markets Division Clean Air Status and Trends Network (CASTNET) United States Environmental Protection Agency https://www.epa.gov/castnet

Meteorological Assimilation Data Ingest System (MADIS) National Oceanic and Atmospheric Administration https://madis.ncep.noaa.gov

Global Precipitation Climatology Project (GPCP) monthly product National Oceanic and Atmospheric Administration https://www.ncei.noaa.gov/data/global-precipitation-climatology-project-gpcp-monthly

MODIS Atmosphere L2 Aerosol Product R. Levy and C. Hsu https://doi.org/10.5067/MODIS/MOD04_L2.006

Model code and software

CMAQv5.0.2 (Version 5.0.2) United States Environmental Protection Agency https://doi.org/10.5281/zenodo.1079898

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Short summary
The continuously updated National Air Quality Forecast Capability (NAQFC) provides air quality forecasts. To support the development of the next-generation NAQFC, we evaluate a prototype of GFSv15-CMAQv5.0.2. The performance and the potential improvements for the system are discussed. This study can provide a scientific basis for further development of NAQFC and help it to provide more accurate air quality forecasts to the public over the contiguous United States.