Scientist Preparing to Climb Observation Tower

USGS collaborator Scott Saleska (University of Arizona) prepares to climb a 213-foot (65-meter) tower at the Amazon forest study site near Santarém, Brazil.  Saleska and other team members installed a remote sensing system near the top of the tower as part of an investigation to improve understanding of how photosynthesis in tropical forests responds to seasonal variations in climate. 

Tapajós National Forest, near Santarém, Pará, Brazil