HR: 08:00h
AN: B21B-01 INVITED    [Abstracts]
TI: Modeling Carbon Cycles and Trace Gas Budgets of Savannas Worldwide using NASA Satellite Products: Focus on Climate and Land Use Change Impacts
AU: * Potter, C
EM: cpotter@mail.arc.nasa.gov
AF: NASA Ames Research Center, Mail Stop 242-4, Moffett Field, CA 94035, United States
AU: Klooster, S
EM: sklooster@gaia.arc.nasa.gov
AF: California State University Monterey California State University Monterey Bay, Earth Systems Science and Policy, Seaside, CA 94035,
AU: Genovese, V
EM: Vanessa.Genovese-1@nasa.gov
AF: California State University Monterey California State University Monterey Bay, Earth Systems Science and Policy, Seaside, CA 94035,
AU: Ferreira, L G
EM: laerte@iesa.ufg.br
AF: Universidade Federal de Goias, Instituto de Estudos Socio-Ambientais, Goiania, GO 74001, Brazil
AB: We are evaluating results from the ecosystem model called NASA-CASA (Carnegie-Ames Stanford Approach) for characterizing carbon cycles and trace gas budgets for savannas on a global scale. The NASA-CASA model has been formulated to run at monthly time intervals for the years 2000 to the present using NASA satellite data inputs from the MODIS and CERES sensors. Maps of net primary production (NPP) and net ecosystem exchange of carbon from the NASA-CASA model show the savanna regions of the globe where climate and land cover conversions have had the greatest impacts over the past 5 to 20 years. Special emphasis will be focused on the Brazilian Cerrado region as savanna ecosystems undergoing rapid transitions to intensive agricultural land uses.
UR: http://geo.arc.nasa.gov/sge/casa/
DE: 0414 Biogeochemical cycles, processes, and modeling (0412, 0793, 1615, 4805, 4912)
DE: 0426 Biosphere/atmosphere interactions (0315)
DE: 0428 Carbon cycling (4806)
DE: 0429 Climate dynamics (1620)
SC: Biogeosciences [B]
MN: 2007 Fall Meeting