CARVE Methane Flux Estimates from Alaskan and Yukon Aircraft Observations

Alaska and the western Yukon Territory are the focus of this dataset, which provides methane flux estimates derived from airborne measurements collected during the Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) between 2012 and 2014. The National Aeronautics and Space Administration produced these state-scale fluxes using atmospheric profiles, lagrangian transport modeling, and statistical relationships with environmental variables like soil temperature. The data includes modeled fluxes and related uncertainties at monthly and daily frequencies.

Use Cases

• Modeling statistical relationships between domain-wide methane flux and soil temperature.
• Estimating methane emissions from tundra and boreal ecosystems using linear regression.
• Analyzing monthly and daily methane flux uncertainties within the Alaskan and Yukon domain.
• Studying the impact of environmental variables on Arctic methane reservoirs.

Strengths

• Data is derived from a dedicated multi-year experiment (CARVE) conducted from 2012 to 2014.
• Estimates combine atmospheric profiles with lagrangian transport modeling for state-scale flux calculation.
• Cross-platform presence on Data.gov and NASA EarthData signals its established importance.

Limitations

• Specific column names, row counts, and dataset size are not provided by any source.
• Sources conflict on the last updated date: Data.gov lists 2026-03-13, while NASA EarthData lists 2014-11 -30.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Derived from airborne measurements and atmospheric profiles using lagrangian transport and statistical modeling.

Time Range

2012 to 2014

Freshness

2026-03-13 09:23:35.766810

Geography

Alaska and the western Yukon Territory