Smithsonian Environmental Research Center Canopy Research, by Tinsley, Jeffrey Wayne 1947-2017, 1994, Smithsonian Archives - History Div, Geoffrey Parker, left, a forest ecologist at the Smithsonian Environmental Research Center (SERC) in Edgewater, MD. and Project Facilitator Sarita Cargas perform leaf experiments high up in the forest canopy with the help of a crane they rented for a week. The canopy, where the atmosphere interacts with the biosphere, has rarely been studied in a temperate forest..