Multispectral Bidirectional Reflectance During the Forest Ecosystem Dynamics - Multisensor Aircraft Campaign

Forest Ecosystem Dynamics Multisensor Airborne Campaign (FED MAC): Bidirectional Reflectance Measurements of Forest Canopy Using PARABOLA The Biospheric Sciences Branch (formerly Earth Resources Branch) within the Laboratory for Terrestrial Physics at NASA's Goddard Space Flight Center and associated University investigators are involved in a research program entitled Forest Ecosystem Dynamics (FED) which is fundamentally concerned with vegetation change of forest ecosystems at local to regional spatial scales (100 to 10,000 meters) and temporal scales ranging from monthly to decadal periods (10 to 100 years).

The nature and extent of the impacts of these changes, as well as the feedbacks to global climate, may be addressed through modeling the interactions of the vegetation, soil, and energy components of the boreal ecosystem. The Portable Apparatus for Rapid Acquisition of Bidirectional Observations of Land and Atmosphere, or PARABOLA instrument (see Deering and Leone, 1986 for a complete description) was employed to measure the directional radiances in essentially the complete 4 pi irradiance field above and below the spruce-hemlock canopy under cloudless and overcast sky.