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The BOREAS RSS-8 team performed research to evaluate the effect of seasonal weather and landcover heterogeneity on boreal forest regional water and carbon fluxes using a process-level ecosystem model, BIOME-BGC, coupled with remote sensing-derived parameter maps of key state variables. This data set contains derived maps of landcover type and crown and stem biomass as model inputs to determine annual evapotranspiration, gross primary production, autotrophic respiration, and net primary productivity within the BOREAS SSA-MSA, at a 30-m spatial resolution. Model runs were conducted over a 3-year period from 1994-1996; images are provided for each of those years. The data are stored in binary image format. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC). Hall, Forrest G. (Editor) and Nickeson, Jaime (Editor) and Kimball, John Goddard Space Flight Center NASA/TM-2000-209891/VOL55, Rept-2000-03136-0/VOL55, NAS 1.15:209891/VOL55
Description of the data products that will be produced from the named scientific missions.
BIOME-BGC is a general ecosystem process model designed to simulate biogeochemical and hydrologic processes across multiple scales (Running and Hunt, 1993). In this investigation, BIOME-BGC was used to estimate daily water and carbon budgets for the BOREAS tower flux sites for 1994. Carbon variables estimated by the model include gross primary production (i.e., net photosynthesis), maintenance and heterotrophic respiration, net primary production, and net ecosystem carbon exchange. Hydrologic variables estimated by the model include snowcover, evaporation, transpiration, evapotranspiration, soil moisture, and outflow. The information provided by the investigation includes input initialization and model output files for various sites in tabular ASCII format. Hall, Forrest G. (Editor) and Nickeson, Jaime (Editor) and Kimball, John Goddard Space Flight Center NASA/TM-2000-209891/VOL54, Rept-2000-03136-0/VOL54, NAS 1.15:209891/VOL54
The Wolf Creek Research Basin project was initiated in 1992 to provide a dedicated site to carry out applied research in the Yukon sub-Arctic. The project used an ecosystem approach through contaminants, waste, water, and environment/economy integration. This report describes the Wolf Creek area, the project's objectives, the background to the project's establishment, and research activities in 1992/93, 1993/94, and 1994/95. Research projects included watershed characterization, water quality monitoring, snow and vegetation survey, streamflow monitoring, snowpack monitoring, wind redistribution of snow, snow accumulation and depletion, snowmelt, evapotranspiration, and runoff modelling.
Significant advances have been made in mapping and monitoring our environment from Earth Observation satellites, but now, in the 1990s, remote sensing has reached a new technological and scientific frontier. Advances in Environmental Remote Sensing not only describes recent technological advances but also emphasises the parallel progress that has been made in interpreting and applying data to solve environmental problems. A team of scientists working at the research edge examine applications using examples from their own current work, and identify key paths for the development of remote sensing into the next century. This is an essential book for students of geography, environmental science, ecology, forestry and geology, as well as an important reference tool for anyone interested in applications of remote sensing.