HR: 16:20h
AN: A54A-01    [Abstracts]
TI: Modelling the climate of the last millennium in South America
AU: * Justino, F
EM: fjustino@ufv.br
AF: Universidade Federal de Vicosa, PH Rolfs S/N DEA, Vicosa, MG 36570000, Brazil
AB: A simulations performed with a coarse resolution ocean-atmosphere-vegetation-seaice climate model driven by observed external forcing is used to investigate the climate evolution of South America during the last millenium. Initial investigation of the South America climate revealed that both the Medieval Warm Period and the Little Ice Age could be identified in the surface temperature timeseries. It is not clear, however, that these warming/cooling scenarios induced substantial changes in the area covered by forest or grass. Our results also predicted that after the Industrial Revolution the area-averaged South American temperature anomalies is up to 1K warmer as compared to pre-industrial conditions. Moreover, there exist a reduction (augment) in forest (grass) fraction. These results will be compared with recent paleoreconstructions available.
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 1635 Oceans (1616, 3305, 4215, 4513)
DE: 4215 Climate and interannual variability (1616, 1635, 3305, 3309, 4513)
DE: 4513 Decadal ocean variability (1616, 1635, 3305, 4215)
SC: Atmospheric Sciences [A]
MN: 2007 Joint Assembly