Alaska Atmospheric CO2 Concentrations and Modeled Fluxes

Arctic Alaska is the primary focus of this dataset, which provides monthly atmospheric carbon dioxide concentrations from satellite and airborne observations between 2009 and 2013. It also includes simulated monthly CO2 concentrations and land-atmosphere flux data for periods spanning 1990 to 2200, generated using the GEOS-Chem and Community Land Model (CLM 4.5) models for various permafrost thaw scenarios. The data originates from the Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) and other NOAA measurement programs.

Use Cases

• Analyzing seasonal and interannual variability of atmospheric CO2 concentrations in the Arctic using monthly averages from 2009-2013.
• Validating and improving global tracer models like GEOS-Chem by comparing simulated CO2 fluxes against observational data.
• Assessing the impact of different permafrost thaw and regional flux scenarios on future atmospheric carbon levels through modeled projections to 2200.
• Studying vertical CO2 profiles using data from NOAA/ESRL measurements at the Poker Flat, Alaska site.

Strengths

• Combines multiple observational sources including CARVE flights, NOAA ACG flights, GOSAT satellite data, and ground-based vertical profiles.
• Provides a long-term perspective with modeled data covering a 310-year time range from 1990 to 2200.
• Simulations are based on established models (GEOS-Chem, Community Land Model) for multiple specific climate scenarios.

Limitations

• Key metadata such as row count, specific column names, and exact file sizes are unavailable from all sources.
• Conflicts exist in provenance details: the 'last updated' date is reported as both 2026-03-13 and an implausible 2200-01-01.
• The license is inconsistently reported as 'other-license-specified' and 'None', requiring user verification.

Provenance

Source

Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE), NOAA Arctic Coast Guard flights, GOSAT satellite, NOAA/ESRL.

Collection Method

Satellite and airborne observations combined with simulations from the GEOS-Chem global tracer model and Community Land Model (CLM 4.5).

Time Range

1990 to 2200 (observational core: 2009-2013)

Freshness

2026-03-13 05:54:45.708345

Geography

Arctic Alaska, with specific site data from Poker Flat.