Hourly U.S. Fossil Fuel CO2 Emissions at 1-km Resolution

Vulcan version 3.0 provides hourly carbon dioxide emissions from fossil fuel combustion and cement production across the contiguous United States and Alaska for 2010-2015. Emissions are quantified at a 1-km spatial resolution and categorized into 10 distinct source sectors. This dataset from ORNL_CLOUD represents the first bottom-up, U.S.-wide emissions product at this high spatiotemporal detail.

Use Cases

• Atmospheric transport modeling using hourly, gridded emission estimates.
• Policy analysis of sector-specific contributions from residential, commercial, industrial, and transportation sources.
• Spatial mapping of emission hotspots at a 1-km grid resolution.
• Temporal analysis of emission patterns across the 2010-2015 time period.
• Comparative studies of onroad, nonroad, rail, airport, and commercial marine vessel emissions.

Strengths

• Provides emissions data at a high spatiotemporal resolution of 1 km2 per hour.
• Covers a multi-year time range from 2010 to 2015.
• Categorizes emissions into 10 specific source sectors for detailed analysis.
• Represents the first bottom-up, U.S.-wide fossil fuel CO2 emissions product at this scale.

Limitations

• Specific column names, row counts, and total dataset size are not provided by any source.
• Sources conflict on the last updated date, listing both 2016-01-01 and 2026-03-12.

Provenance

Source

ORNL_CLOUD

Collection Method

Bottom-up emissions quantification.

Time Range

2010-2015

Freshness

2026-03-12 20:06:52.703115

Geography

Conterminous United States and the state of Alaska