The workshop was held at the H.J. Andrews LTER site near Blue River Oregon on May 21 and 22, 2001 with support from the LTER Network Office. Twenty people attended, including participants from Brazil, Hungary and Korea. The workshop was intended to promote data exchange between the remote sensing community — which has begun to produce global land cover, leaf area index, and net primary production products — and the field sites where relevant validation data is being produced. Specifically, the workshop was aimed at fostering participation of a variety of field sites in the LTER sponsored NPP Demonstration Project. The more general context was the evolution of the Global Terrestrial Observing System which will ultimately provide policy makers with assessments of status and trends for variables such as global NPP.