Articles | Volume 21, issue 17
Atmos. Chem. Phys., 21, 13553–13569, 2021
https://doi.org/10.5194/acp-21-13553-2021
Atmos. Chem. Phys., 21, 13553–13569, 2021
https://doi.org/10.5194/acp-21-13553-2021

Research article 10 Sep 2021

Research article | 10 Sep 2021

Water vapor anomaly over the tropical western Pacific in El Niño winters from radiosonde and satellite observations and ERA5 reanalysis data

Minkang Du et al.

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El Niño has an important influence on climate systems. There are obviously negative water vapor anomalies from radiosonde observations in the tropical western Pacific during El Niño. The tropical Hadley, Walker, and monsoon circulation variations are revealed to play different roles in the observed water vapor anomaly in different types of El Niños. The Walker (monsoon) circulation anomaly made a major contribution in the 2015/16 (2009/10) strong eastern Pacific (central Pacific) El Niño event.
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