June 9, 1990 to August 31, 1990
Project Location: 
Northeast Canada
Project Description: 

The NASA-sponsored Arctic Boundary Layer Expedition -3B (ABLE-3B) was led by David Fitzjarrald of the State University of New York at Albany, who served as PI.  The study focused on the emission and deposition of trace species in the subarctic boreal and tundra regions of northeastern Canada.  Surface observations were provided by a network of four PAM-II remote stations located around turbulent flux measurement sites near Schefferville, Quebec.  The PAM stations documented the low-level thermodynamic and flow regimes and provided valuable information on the terrain-influenced microclimate of the region.  The PAM network proved important in relating the flux mesurements to the propagation of local weather phenomena.  Significant valley flows and strong stratification were also documented.