U.S. Gridded Methane Emissions Inventory at 10km Resolution, 2012-2020

Gridded annual methane emission maps for the contiguous United States with 0.1° x 0.1° spatial and monthly temporal resolution. The dataset is provided by the U.S. Environmental Protection Agency and is designed to be consistent with the national U.S. Greenhouse Gas Inventory. It includes data from 2012 through 2020, with version 1 files from 2012 and version 2 files extending through 2018 and 2020.

Use Cases

• Compare national inventory estimates with local atmospheric observations based on the gridded, high-resolution emission maps.
• Analyze temporal trends in U.S. methane emissions based on the annual time series from 2012 to 2020.
• Model atmospheric methane concentrations using the monthly scale factors provided in the dataset.
• Validate remote sensing or ground-based methane measurement studies against the EPA's gridded inventory.

Strengths

• Spatial resolution of approximately 10 km x 10 km (0.1° x 0.1°) for the contiguous United States.
• Includes monthly temporal resolution and annual time series from 2012 through 2020.
• Data is officially provided by the U.S. Environmental Protection Agency and is consistent with the national Greenhouse Gas Inventory.
• Multiple data versions (v1 and v2) and file types (annual, monthly, daily, scale factors) are included.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download from the netCDF files.
• Description metadata is limited; actual data quality and structure require manual inspection after download.
• The dataset's spatial coverage is limited to the contiguous United States (CONUS).

Provenance

Source

U.S. Environmental Protection Agency (EPA).

Collection Method

Extracted from the EPA's gridded methane greenhouse gas inventory, designed to be consistent with the national Inventory of U.S. Greenhouse Gas Emissions and Sinks.

Time Range

2012 to 2020.

Freshness

Last updated 2026-05-18 19:48:38; data covers up to the year 2020.

Geography

Contiguous United States (CONUS).