Figure 1. To continuously estimate forest carbon dioxide uptake, a three-dimensional sonic anemometer and an open-path infrared gas analyzer are placed over the canopy. Instruments are placed on booms that are mounted on top of the 30-m tower.

Figure 1. To continuously estimate forest carbon dioxide uptake, a three-dimensi

Figure 1. To continuously estimate forest carbon dioxide uptake, a three-dimensional sonic anemometer and an open-path infrared gas analyzer are placed over the canopy. Instruments are placed on booms that are mounted on top of the 30-m tower.

From: 
New Flux Tower Facility Tracks CO2 in the Florida Coastal Everglades