7#4   " x  *   9 .c.Prince Albert, Saskatchewan, Canada BOREAS Project Craig Dobson, Jon Ranson, Roger Lang, JoBea Way Kyle McDonald, and Sasan Saatchi Prince Albert and Nelson House, Manitoba are the two test sites chosen for the Boreal Ecosystem - Atmosphere Study (BOREAS). The goal of BOREAS is to obtain an improved understanding of the interactions between the boreal forest biome and the atmosphere in order to clarify their roles in global change. Specific objectives are: 1) To improve our understanding of the processes which govern the exchanges of energy, water, heat, carbon, and trace gases between boreal ecosystems and the atmosphere, with particular reference to those that may be sensitive to global change; and 2) to develop and validate remote sensing algorithms for transferring our understanding of the above processes from local to regional scales. In particular, BOREAS will address three major scientific issues: 1) The biogeochemical functioning of the boreal forest, including controls on carbon storage and partitioning and the seasonal and spatial variability of trace gas fluxes; 2) the sensitivity of the boreal forest biome to changes in the physical climate system; and 3) the biophysical feedbacks to the climate system due to ecological changes in the functioning of the biome. ured photos of clouds and wetlands, and stereo photos of forests. Coverage Requirements: The minimum coverage requirements for the Manaus, Brazil test site are four (4) ascending or four (4) descending passes. Anticipated Results: I. a) Improve the monitoring of wetland hydrological regimes. b) Provide a quantitative assessment of the accuracies of radar floodwater mapping beneath dense vegetation canopies. c) Use our backscatter model and field data to isolate uniqu @   '(7g^! !h !h !h! !  :New York 10 point,timesCourier ,  ! HH(FG(HH(d'@=/RBH -:LaserWriter Palatino(9Mission SummarySIR-CED Karl Erickson Karl Erickson