Articles | Volume 13, issue 8
https://doi.org/10.5194/bg-13-2339-2016
https://doi.org/10.5194/bg-13-2339-2016
Research article
 | 
21 Apr 2016
Research article |  | 21 Apr 2016

Interannual variability of the atmospheric CO2 growth rate: roles of precipitation and temperature

Jun Wang, Ning Zeng, and Meirong Wang

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Short summary
Relative contribution from precipitation and temperature to interannual variability (IAV) of atmospheric CO2 growth rate (CGR) remains uncertain. We found that CGR IAV has a slightly higher correlation coefficient with temperature than precipitation. However, Trendy models can well simulate the IAV and consistently show net primary production dominates it. These mechanistic analyses suggest a key role of precipitation in CGR IAV despite the higher CGR correlation with temperature.
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