New England County-Level Methane Emissions Inventory for 1990-1994

A county-level inventory of natural and anthropogenic methane emissions for the six New England states. The dataset provides emission estimates for multiple sources and methane uptake in soils, representing a snapshot circa 1990-1994. It was produced by the National Aeronautics and Space Administration.

Use Cases

• Analyzing the contribution of specific sources like landfills or wetlands to total regional methane flux.
• Comparing anthropogenic emissions from fossil fuel use and agriculture against natural sources across counties.
• Assessing historical methane sinks from upland soils to model net atmospheric impact.
• Serving as a baseline for studies on changes in methane emission patterns over time.

Strengths

• Covers all counties in six states, providing complete spatial coverage for the New England region.
• Includes estimates for over eight distinct emission sources and one sink category, enabling detailed breakdowns.
• Represents a consolidated historical snapshot (circa 1990-1994) for temporal analysis.

Limitations

• Key metadata conflicts exist: the last update date is listed as both 1994-12-31 and 2026-03 12 across platforms.
• Core technical details like row count, file size, and specific column names are unavailable from all sources.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Inventory compilation providing emission estimates for listed source categories.

Time Range

circa 1990-1994

Freshness

2026-03-12 23:25:41.524254

Geography

All counties in Connecticut, Rhode Island, Massachusetts, Vermont, New Hampshire, and Maine, USA.