WOFTS Introduction WOFTS Outline Model Mechanism Ozone/CO2 Interaction WOFTS in Action Downloads FACE


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Aspen/FACE - CO2 & Ozone Interaction

The Aspen FACE (Free-Air Carbon Dioxide Enrichment) Experiment is a multidisciplinary study to assess the effects of increasing tropospheric ozone and carbon dioxide levels on aspen forest ecosystems.

For project updates, take a look at What's New.

Visit the central Aspen FACE home page

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Located at the Harshaw Experimental Forest near Rhinelander, Wisconsin, the Aspen FACE experiment is a collaborative effort among a  Large group of investigators

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Each ring consist of a series of vertical ventpipes which disperse carbon dioxide or ozone into the center of the ring. This computer controlled system uses signal feedback technology to adjust gas release each second in order to maintain a stable, elevated concentration of carbon dioxide or ozone throughout the experimental plot. Because there is no confinement, there is no significant change in the natural, ambient environment other than elevating these trace gas concentrations. 

Pictures and text courtesy of Dr G.Host.



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Last modified: August 26, 1998