TY - JOUR
T1 - Comparison of the 2015/16 El Niño with the two previous strongest events
AU - Shiozaki, Masahiro
AU - Enomoto, Takeshi
N1 - Funding Information:
This study was supported by JSPS KAKENHI Grant Number 19H05698. The datasets used for this study are provided from the Japanese 55-year Reanalysis (JRA-55) project carried out by the Japan Meteorological Agency (JMA), and the GODAS data is provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA. We would like to thank the editor and two anonymous reviewers for their many insightful comments and suggestions.
Publisher Copyright:
© The Author(s) 2020.
PY - 2020/1
Y1 - 2020/1
N2 - The 2015/16 El Niño is compared with the two previous strongest events, the 1982/83 and 1997/98 El Niño. The 2015/16 winter features a basin warming in the Indian Ocean, a negative sea surface temperature (SST) anomaly shifted to the north in the western Pacific Ocean in addition to a positive SST anomaly shifted to the west in the eastern Pacific Ocean. These SST distributions lead to suppressed convection in the Maritime Continent, and to a weakened Hadley circulation in the western Pacific Ocean. The eastern Asian monsoon in the 2015/16 winter was also weakened due to the dominance of the western Pacific (WP) pattern. On the other hand, the third and fourth centers of action of Pacific/North American (PNA) pattern in the 2015/16 case are obscure. This may be due to weak divergence in the eastern Pacific Ocean.
AB - The 2015/16 El Niño is compared with the two previous strongest events, the 1982/83 and 1997/98 El Niño. The 2015/16 winter features a basin warming in the Indian Ocean, a negative sea surface temperature (SST) anomaly shifted to the north in the western Pacific Ocean in addition to a positive SST anomaly shifted to the west in the eastern Pacific Ocean. These SST distributions lead to suppressed convection in the Maritime Continent, and to a weakened Hadley circulation in the western Pacific Ocean. The eastern Asian monsoon in the 2015/16 winter was also weakened due to the dominance of the western Pacific (WP) pattern. On the other hand, the third and fourth centers of action of Pacific/North American (PNA) pattern in the 2015/16 case are obscure. This may be due to weak divergence in the eastern Pacific Ocean.
UR - http://www.scopus.com/inward/record.url?scp=85084200226&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85084200226&partnerID=8YFLogxK
U2 - 10.2151/SOLA.2020-003
DO - 10.2151/SOLA.2020-003
M3 - Article
AN - SCOPUS:85084200226
SN - 1349-6476
VL - 16
SP - 12
EP - 16
JO - Scientific Online Letters on the Atmosphere
JF - Scientific Online Letters on the Atmosphere
IS - 0
ER -