Analysis of the analysis of the asymmetric features for the two types of ENSO

LI Zhiyu; ZHANG Wenjun; XU Haiming

doi:10.11676/qxxb2015.079

Acta Meteorologica Sinica > 2015 > (6): 1019-1038. > DOI: 10.11676/qxxb2015.079

LI Zhiyu, ZHANG Wenjun, XU Haiming. 2015: Analysis of the analysis of the asymmetric features for the two types of ENSO. Acta Meteorologica Sinica, (6): 1019-1038. DOI: 10.11676/qxxb2015.079

Citation:

LI Zhiyu, ZHANG Wenjun, XU Haiming. 2015: Analysis of the analysis of the asymmetric features for the two types of ENSO. Acta Meteorologica Sinica, (6): 1019-1038. DOI: 10.11676/qxxb2015.079

Citation:

LI Zhiyu, ZHANG Wenjun, XU Haiming. 2015: Analysis of the analysis of the asymmetric features for the two types of ENSO. Acta Meteorologica Sinica, (6): 1019-1038. DOI: 10.11676/qxxb2015.079

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Analysis of the analysis of the asymmetric features for the two types of ENSO

1.
Key Laboratory of Meteorological Disaster of Ministry of Education, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China
2.
College of Atmospheric Science, Nanjing University of Information Science and Technology, Nanjing 210044, China

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Received Date: March 10, 2015
Revised Date: July 30, 2015
Published Date: January 05, 2016

Graphical Abstract

Abstract

Abstract

The asymmetric features of sea surface temperature (SST) anomalies for eastern Pacific (EP) and central Pacific (CP) ENSO events and their possible mechanisms are analyzed by using a variety of air-sea data during the period of 1961-2010. The responses of the atmospheric circulation to the two types of ENSO are also discussed. The SST anomalies exhibit asymmetry in the spatial distribution, intensity and persistence. Although the dominant mechanisms vary in both the development and decay stages for the two events, the ocean vertical advection term plays a key role in their asymmetry of both EP and CP ENSO events. The local and remote atmospheric responses both show strong asymmetric signal, which is consistent with the asymmetric distribution of SST anomalies. The asymmetric distributions of atmospheric responses in EP-ENSO are similar to those associated with EP-El Nio and the asymmetric responses in CP-ENSO are similar to those associated with CP-La Nia. The intensity of the EP-ENSO related asymmetric responses is much stronger than that of the CP-ENSO.
- EP-ENSO,
- CP-ENSO,
- Air-sea coupled features,
- Asymmetry

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References (68)

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