Winter Soil CO2 Flux Synthesis for Arctic and Boreal Permafrost

Soil CO2 flux measurements provide a synthesized record of winter carbon emissions from permafrost regions. The dataset aggregates in situ data from 87 published and unpublished studies spanning 1989 to 2017, compiled by NASA. It includes monthly or seasonal average flux rates alongside environmental drivers like soil moisture, temperature, and vegetation type derived from remote sensing.

Use Cases

• Calibrating and validating soil respiration models for Arctic and boreal ecosystems using the reported daily average CO2 flux (g C m-2 day-1).
• Analyzing relationships between winter carbon emissions and environmental drivers like soil moisture and temperature.
• Assessing spatial variability of soil respiration across continuous, discontinuous, and sporadic permafrost zones.
• Investigating long-term trends in winter CO2 flux from pan-Arctic tundra and boreal regions over a 28-year period.

Strengths

• Compilation from 87 distinct studies (66 published, 21 unpublished) provides a substantial foundation of field observations.
• Covers a wide temporal range (1989-2017) and geographic scope across pan-Arctic and boreal regions north of 53°N.
• Includes derived environmental model driver data from satellite remote sensing and reanalysis sources to support contextual analysis.

Limitations

• Key structural details like row count, column names, and exact dataset size are unavailable from all sources.
• Conflicting last updated dates exist between platforms (2017-04-30 vs. 2026-03-12), creating uncertainty about metadata maintenance.
• Data aggregation at monthly or seasonal levels may obscure finer temporal dynamics present in original measurements.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Synthesis of in situ measurements compiled from 87 published and unpublished studies.

Time Range

1989 to 2017

Freshness

2026-03-12 21:09:29.313033

Geography

Pan-Arctic and boreal permafrost regions (>53° N), spanning tundra and boreal zones in continuous, discontinuous, and isolated/sporadic permafrost.