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- 9e8dd688-d3b8-4e57-938e-6eeefa28c9cc definition "Impacts of Disturbance History and Climate on Carbon Fluxes from North American Forests: Application of Satellite, Inventory, and Climate Data to Inform Biogeochemical Modeling NACP Project Profile http://www.nacarbon.org/cgi-nacp/web/investigations/inv_pgp.pl?pgid=202 We propose to estimate carbon fluxes from the North American continent taking into account 30 years of climate and disturbance history. Our approach is to utilize the forest age and biomass results based on time series Landsat and FIA data developed by a currently funded NASA Carbon Cycle Science Project (North American Forest Disturbance and Regrowth Since 1972, PI: S. N. Goward). Dense time series data for a number of forested scenes (>25) in the US and Canada will be used to initialize and calibrate a biogeochemical model that predicts gross and net carbon fluxes. Model testing will include appropriate Ameriflux, LTER, NACP Tier 2, and FIA data. Climate variability (temperature, precipitation, solar radiation) will also be included in the analysis. Then using less temporally dense satellite data but wall to wall continental coverage, the modeling will predict gross and net carbon fluxes resulting from disturbance history and climate for the forests of North America. The products of this study will be used by our collaborators as boundary conditions for atmospheric transport (forward and inversion) models. By reconciling top-down (atmosphere) and bottom-up (biogeochemistry) analyses of the net fluxes we will be able to estimate accuracy and uncertainty in our model results." @default.
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