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Global warming hiatus contributed to the increased occurrence of intense tropical cyclones in the coastal regions along East Asia.

Authors :
Zhao J
Zhan R
Wang Y
Source :
Scientific reports [Sci Rep] 2018 Apr 16; Vol. 8 (1), pp. 6023. Date of Electronic Publication: 2018 Apr 16.
Publication Year :
2018

Abstract

The recent global warming hiatus (GWH) was characterized by a La Niña-like cooling in the tropical Eastern Pacific accompanied with the Indian Ocean and the tropical Atlantic Ocean warming. Here we show that the recent GWH contributed significantly to the increased occurrence of intense tropical cyclones in the coastal regions along East Asia since 1998. The GWH associated sea surface temperature anomalies triggered a pair of anomalous cyclonic and anticyclonic circulations and equatorial easterly anomalies over the Northwest Pacific, which favored TC genesis and intensification over the western Northwest Pacific but suppressed TC genesis and intensification over the southeastern Northwest Pacific due to increased vertical wind shear and anticyclonic circulation anomalies. Results from atmospheric general circulation model experiments demonstrate that the Pacific La Niña-like cooling dominated the Indian Ocean and the tropical Atlantic Ocean warming in contributing to the observed GWH-related anomalous atmospheric circulation over the Northwest Pacific.

Details

Language :
English
ISSN :
2045-2322
Volume :
8
Issue :
1
Database :
MEDLINE
Journal :
Scientific reports
Publication Type :
Academic Journal
Accession number :
29662073
Full Text :
https://doi.org/10.1038/s41598-018-24402-2