Corrected SMAP-NEE Carbon Dioxide Flux Estimates for Five Canadian Peatlands, 2015–2023

A corrected dataset of Net Ecosystem Exchange (NEE) carbon dioxide fluxes for five Canadian peatlands, derived from the SMAP Level 4 product and calibrated against eddy covariance measurements. The data spans nine years from 2015 to 2023 and provides seasonal and annual CO2 budget estimates. It was created by author E. Kathryn Hettinga and published on figshare in May 2026.

Use Cases

• Evaluating the performance of remote sensing data products (SMAP-NEE) for estimating peatland carbon fluxes based on the comparison with in-situ eddy covariance measurements.
• Analyzing the contribution of non-growing season emissions to annual peatland carbon budgets based on the corrected seasonal flux data.
• Improving climate model training for peatland ecosystems based on the demonstrated need for incorporating peatland-specific data.
• Estimating year-round CO2 fluxes in northern peatlands where in-situ measurements are sparse, based on the provided nine-year time series.

Strengths

• Data spans nine years (2015–2023), providing a multi-year time series for analysis.
• Compares two independent data sources: remotely sensed/modeled SMAP-NEE and in-situ eddy covariance measurements.
• Includes a corrected dataset that adjusts the SMAP-NEE product based on the relationship with ground measurements.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset's 1.4 MB size suggests it is a summary or processed output, not the raw underlying time series.

Provenance

Source

E. Kathryn Hettinga

Collection Method

Derived from the Soil Moisture Active Passive Level 4 Global Daily EASE-Grid C NEE (SMAP-NEE) data product and calibrated against a subset of eddy covariance measurements.

Time Range

2015–2023

Freshness

Last updated 2026-05-28 04:45:26; freshness should be verified.

Geography

Five peatland sites in Canada