Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 18, issue 14
Articles | Volume 18, issue 14
https://doi.org/10.5194/acp-18-10333-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-18-10333-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 14
Research article
 | 
19 Jul 2018
Research article |  | 19 Jul 2018

Contrasting interannual atmospheric CO2 variabilities and their terrestrial mechanisms for two types of El Niños

Jun Wang, Ning Zeng, Meirong Wang, Fei Jiang, Jingming Chen, Pierre Friedlingstein, Atul K. Jain, Ziqiang Jiang, Weimin Ju, Sebastian Lienert, Julia Nabel, Stephen Sitch, Nicolas Viovy, Hengmao Wang, and Andrew J. Wiltshire

Supplement

https://doi.org/10.5194/acp-18-10333-2018-supplement

Data sets

Trends in Atmospheric Carbon Dioxide NOAA/ESRL https://www.esrl.noaa.gov/gmd/ccgg/trends/index.html

Niño 3.4 Index ERSST4 http://www.cpc.ncep.noaa.gov/data/indices/ersst4.nino.mth.81-10.ascii

CRUNCEP data set N. Viovy ftp://nacp.ornl.gov/synthesis/2009/frescati/temp/land_use_change/original/readme.htm

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Short summary
Based on the Mauna Loa CO2 records and TRENDY multi-model historical simulations, we investigate the different impacts of EP and CP El Niños on interannual carbon cycle variability. Composite analysis indicates that the evolutions of CO2 growth rate anomalies have three clear differences in terms of precursors (negative and neutral), amplitudes (strong and weak), and durations of peak (Dec–Apr and Oct–Jan) during EP and CP El Niños, respectively. We further discuss their terrestrial mechanisms.
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