globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00382-017-3588-y
Scopus ID: 2-s2.0-85014634358
Extreme subsurface warm events in the South China Sea during 1998/99 and 2006/07: observations and mechanisms
Author: Xiao F.; Zeng L.; Liu Q.-Y.; Zhou W.; Wang D.
Source Publication: Climate Dynamics
ISSN: 9307575
Publishing Year: 2018
Volume: 50, Issue:2018-01-02
pages begin: 115
pages end: 128
Language: 英语
Keyword: Extreme subsurface warm event ; Kuroshio current ; South China Sea ; Warm advection
Scopus Keyword: advection ; boundary current ; extreme event ; heat budget ; heat flux ; mixed layer ; sea surface temperature ; warming ; western boundary current ; Kuroshio Current ; Pacific Ocean ; South China Sea
English Abstract: Conductivity–temperature–depth observations, objectively analyzed data, and model output are used to investigate the variability of subsurface temperature in the South China Sea (SCS) during 1948–2010. Two extreme subsurface warm events are identified during 1998/99 and 2006/07, with no corresponding extreme surface warming except in 1998. Mixed-layer heat budget analysis reveals that the lack of significant heat input from surface net heat flux or from current advection is responsible for the absence of extreme surface warming during 1999, and 2006/07. The surface net heat flux alone cannot explain the first phases of subsurface warming during 1998/99 and 2006/07. Warm advection from the southern SCS in 1998/99 and from the Kuroshio intrusion in 2006/07, induced by anomalous ocean currents, is likely the major contributor to warming of the subsurface water. During the second phase of warming, the surface net heat flux plays a damping role to cool the subsurface water, and the warm advection induced by anomalous SCS western boundary currents from the southern SCS leads to extremely warm subsurface water anomalies. The results show the importance of the Pacific western boundary currents, especially the Kuroshio, in maintaining extreme subsurface warm events in the SCS. © 2017, Springer-Verlag Berlin Heidelberg.
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Document Type: 期刊论文
Appears in Collections:影响、适应和脆弱性

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Affiliation: State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; University of Chinese Academy of Sciences, Beijing, China; Guy Carpenter Asia-Pacific Climate Impact Centre, School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, China

Recommended Citation:
Xiao F.,Zeng L.,Liu Q.-Y.,et al. Extreme subsurface warm events in the South China Sea during 1998/99 and 2006/07: observations and mechanisms[J]. Climate Dynamics,2018-01-01,50(2018-01-02)
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