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The WRF Model coupled with Chemistry (WRF-Chem) Forecast Output over CONUS

| DOI: 10.5065/7J5P-MC95

The Weather Research and Forecasting (WRF) model coupled with Chemistry version 3.9.1 is used to generate a 48-hour air quality forecast daily at 12 km grid spacing over the CONUS. The first 24 forecast files are available here. This WRF-Chem model simulates the emission, transport, mixing, and chemical transformation of trace gases and aerosols simultaneously with the meteorology. These forecasts are used to support air quality decision-making, field campaign planning, early identification of model errors and biases, and support the atmospheric science community in their research. This system aims to complement the operational air quality forecasts produced by the National Oceanic and Atmospheric Administration (NOAA), not to replace them. A publicly available information dissemination system has been established that displays various air quality products, including a near-real-time evaluation of the model forecasts at the WRF Chemistry Forecast Maps.

Temporal Range:
2019-05-01 01:00 +0000 to 2023-06-06 23:00 +0000 (Entire dataset) Period details by dataset product
Atmospheric Carbon Monoxide Atmospheric Ozone U/V Wind Components Vertical Profiles
Vertical Levels:
See the detailed metadata for level information.
Data Types:
Spatial Coverage:
Longitude Range: Westernmost=128.233W Easternmost=66.021W
Latitude Range: Southernmost=23.649N Northernmost=50.699N Detailed coverage information
Data Contributors:
Atmospheric Chemistry Observations & Modeling, National Center for Atmospheric Research, University Corporation for Atmospheric Research
Research Application Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
Related Resources:
Kumar, R., P. Bhardwaj, G. Pfister, C. Drews, S. Honomichl, and G. D’Attilo, 2021: Description and Evaluation of the Fine Particulate Matter Forecasts in the NCAR Regional Air Quality Forecasting System Atmosphere, 12(3), 302 (DOI: 10.3390/atmos12030302).

Total Volume:
26.73 TB (Entire dataset) Volume details by dataset product
Data Formats:
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Data License:
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