The coupled feedback processes of energy
and carbon cycles are an essential mechanism for understanding global
environmental change. We developed a simplified one-dimensional
carbon and energy cycle coupled model to quantify the feedback processes between
energy and carbon cycles. The model was calibrated
to reproduce the historical variations in temperature and
atmospheric CO2 concentration. The model results of vertical ocean
temperature profiles, and latitudinal NPP and NEP
distributions were in good agreement with the observation data and terrestrial
biosphere model results. The regional difference of terrestrial ecosystem response by
climate feedback appeared in the middle and high latitudes. The north-south distribution
is important to investigate the terrestrial ecosystem because the opposite
response appeared in the middle and high latitude. The future change of carbon
cycle and climate was also simulated up to the year 2100 based on the IPCC
scenario. The atmospheric CO2 concentration reaches 735 ppmv in 2100
and global average temperature increases 1.9 K for 2000-2100.
Author: K. Murakami, T.Sasai, K.Ichii, and Y.Yamaguchi (kazu at system dot eps dot nagoya-u dot ac dot jp)
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