ACCLIMATE Eddy Covariance Data
2026-04-28
Graphs
Cumulative net ecosystem exchange (NEE) of carbon dioxide.
Red dots indicate 2024 data while the boxes indicate previous years data.
Cumulative net ecosystem exchange (FCH4) of methane.
Red dots indicate 2024 data while the boxes indicate previous years data.
Summary Points
- What is it: Eddy covariance is a technique to measure the net exchange of gases between the land and the atmosphere.
- Non-Scientific name: Carbon gas exchange analyzer
- Why do we measure it: The net exchange of carbon dioxide and methane inform us about how plant and soil ecosystem dynamics affect the global climate.
- How was it measured: Continuous automated sensors of wind velocity, carbon dioxide, and methane concentrations.
- Long term trends:
- High and low trends: The site is a consistent large source of carbon dioxide and methane.
- What happened in 2024: Summer uptake of carbon dioxide and methane were record highs in 2024.
- Where is this science going?: Expanding measurements like this to more sites can provide ground-truth monitoring of how Arctic ecosystems interact with the global climate.
Images
The image depicts the Eddy covariance tower responsible for gathering the data used to make the graphs above. Eddy covariance towers like this one monitor how ecosystems "breathe" by measuring the flow of gases (like CO2) carried on wind eddies between the surface and the air.