HAQES_NA_PM25_OC_COUNTY: 3-Hourly Organic Carbon PM2.5 Forecasts for U.S. Counties

3-hourly ensemble mean surface PM2.5 Organic Carbon concentration forecasts at the county level over the continental United States. The Hazardous Air Quality Ensemble System (HAQES) provides real-time forecasts for events like wildfires and dust storms, combining models from NASA, NOAA, and other agencies. Prototypes were developed by George Mason University as part of the NASA Health Air Quality Applied Science Team.

Use Cases

• Modeling population exposure to organic carbon aerosols based on county-level concentration forecasts.
• Forecasting hazardous air quality events like wildfires based on the ensemble model outputs described.
• Analyzing spatial and temporal patterns of PM2.5 organic carbon across the continental U.S. based on the 3-hourly resolution.
• Validating and comparing different atmospheric chemistry models based on the multi-agency ensemble approach.

Strengths

• Data is produced by an ensemble system incorporating models from authoritative agencies like NASA and NOAA.
• Provides forecasts at a 3-hourly temporal resolution for detailed time-series analysis.
• Spatial coverage is specified as the continental United States (CONUS) at the county administrative level.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• Data may reflect geographic bias inherent to its focus on the continental United States.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Real-time ensemble forecasts from multiple global and regional atmospheric models.

Time Range

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Freshness

Last updated 2026-03 13 01:55:46.579397; freshness should be verified.

Geography

County-level data over the continental United States (CONUS)