Northern Hemisphere Gross Primary Productivity Data from 103 Eddy-Covariance Sites

Northern Hemisphere eddy-covariance measurements from 103 sites, comprising 859 site-years of gross primary productivity (GPP) data. The dataset quantifies three underlying GPP components—GPPmax, carbon uptake period (CUP), and αGPP—to analyze spatial and interannual variability. It was authored by Zhaogang Liu and last updated in May 2026.

Use Cases

• Modeling annual gross primary productivity (AGPP) based on the three underlying GPP components (GPPmax, CUP, αGPP).
• Analyzing the relative importance of climate factors (temperature, precipitation, radiation) on AGPP through indirect effects on GPP parameters.
• Investigating spatial variability in ecosystem productivity based on data from 103 Northern Hemisphere sites.
• Studying interannual variation in carbon uptake using 859 site-years of GPP measurements.

Strengths

• Derived from 859 site-years of eddy-covariance measurements, providing a multi-year observational basis.
• Quantifies three specific GPP components (GPPmax, CUP, αGPP) that explain spatial and interannual variability.
• Analysis includes specific statistical contributions, such as GPPmax explaining 46.09% of spatial AGPP variability.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Geographic coverage is limited to the Northern Hemisphere.

Provenance

Source

Eddy-covariance measurements from 103 Northern Hemisphere sites.

Collection Method

Analysis of site measurements to quantify GPPmax, carbon uptake period (CUP), and αGPP for each site-year.

Freshness

Last updated 2026-05-02 01:12:28; freshness should be verified.

Geography

Northern Hemisphere