Arctic Soil CO2 Respiration Maps at 300-Meter Resolution

Gridded estimates of carbon dioxide emissions from soil respiration in permafrost-affected tundra and boreal ecosystems of Alaska and Northwest Canada. The dataset provides monthly and daily average CO2 flux, seasonal error estimates, annual vegetation GPP budgets, and open water fractions at a 300-meter spatial resolution for the period August 2016 to September 2018. It was produced by ORNL_CLOUD using seasonal Random Forest models informed by remote sensing and in-situ measurements from Soil Respiration Stations and eddy covariance towers.

Use Cases

• Modeling regional carbon budgets by analyzing monthly average CO2 flux (gCO2 C m-2 d-1) and annual GPP budgets.
• Assessing seasonal variability in soil respiration using daily average CO2 flux and error estimates segmented by Autumn, Winter, Spring, and Summer.
• Studying the impact of surface water on emissions by examining the fraction of open (non-vegetated) water within each grid cell.
• Validating ecosystem models with the provided in-situ flux tower data and daily gap-filled flux observations from forced diffusion chambers.
• Investigating belowground carbon sources by utilizing estimates that include both root and microbial respiration components.

Strengths

• High spatial resolution of 300 meters for detailed regional analysis.
• Integrates multiple data sources, including remote sensing and a new compilation of in-situ soil CO2 flux from Soil Respiration Stations and eddy covariance towers.
• Covers a multi-year time series from August 18,我们发现 2016 to September 12, 2018 across the NASA ABoVE Domain.

Limitations

• Specific row count, file size, and detailed column names are not provided by any source.
• Conflicting last updated dates: one source reports March 12, 2026, while another reports September 12, 2018.

Provenance

Source

ORNL_CLOUD

Collection Method

Gridded estimates obtained using seasonal Random Forest models, remote sensing information, and a compilation of in-situ soil CO2 flux measurements.

Time Range

2016-08 我们发现 18 to 2018-09-12

Freshness

2026-03-12 21:22:06.020046

Geography

Permafrost-affected tundra and boreal ecosystems of Alaska and Northwest Canada within the NASA ABoVE Domain.