NACP Regional: North American GHG Inventories and Modeled Carbon Fluxes

NACP Regional Synthesis data provides aggregated outputs from 22 terrestrial biosphere and 7 inverse models for North American greenhouse gas inventory zones. The dataset combines monthly and yearly modeled carbon fluxes with national GHG inventory estimates for forest, crop, and other lands from 2000 to 2006. It includes spatial data for inventory zones and a summary file of annual mean Net Ecosystem Exchange (NEE).

Use Cases

• Validating national GHG inventory reports against independent biosphere model outputs.
• Analyzing spatial and temporal patterns of Net Ecosystem Exchange (NEE) across different land sectors.
• Comparing carbon flux estimates from multiple terrestrial biosphere and inverse models.
• Mapping greenhouse gas inventory zones for North America using the provided ESRI Shapefile.

Strengths

• Integrates outputs from 29 distinct models (22 TBM, 7 IM), providing a multi-model synthesis.
• Combines high-resolution (1-degree) model data with official national inventory data from the U.S., Canada, and Mexico.
• Provides data disaggregated by key land sectors (Forest Lands, Crop Lands, Other Lands) within inventory zones.

Limitations

• Key metadata such as row count, column names, and specific license terms are not provided across platforms.
• There is a significant conflict in the 'last updated' date between sources (2007 vs. 2026), casting doubt on data freshness.
• The temporal coverage is limited to the years 2000-2006, which may not reflect recent conditions.

Provenance

Source

National Aeronautics and Space Administration (NASA), derived from the North American Carbon Program (NACP) Regional Synthesis.

Collection Method

Aggregation of standardized 1-degree model outputs to national GHG inventory zones, combined with official national inventory data.

Time Range

2000-2006

Freshness

Last updated dates conflict: 2007-12-31 (nasa_earthdata) and 2026-04-10 (datagov).

Geography

North America (United States, Canada, Mexico)