Pacific climate variability and the possible impact on global surface CO2 flux |
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| Authors: | Hideki Okajima Michio Kawamiya |
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| Institution: | (1) Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology, Yokohama 236-0001, Japan |
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| Abstract: | Background Climate variability modifies both oceanic and terrestrial surface CO2 flux. Using observed/assimilated data sets, earlier
studies have shown that tropical oceanic climate variability has strong impacts on the land surface temperature and soil moisture,
and that there is a negative correlation between the oceanic and terrestrial CO2 fluxes. However, these data sets only cover
less than the most recent 20 years and are insufficient for identifying decadal and longer periodic variabilities. To investigate
possible impacts of interannual to interdecadal climate variability on CO2 flux exchange, the last 125 years of an earth system
model (ESM) control run are examined. |
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