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