DOI: 10.1175/JCLI-D-12-00315.1
Scopus记录号: 2-s2.0-84885332956
论文题名: Weakening of the kuroshio intrusion into the south china sea over the past two decades
作者: Nan F. ; Xue H. ; Chai F. ; Wang D. ; Yu F. ; Shi M. ; Guo P. ; Xiu P.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 20 起始页码: 8097
结束页码: 8110
语种: 英语
Scopus关键词: Ekman transport
; Geostrophic transport
; Hydrographic data
; Kuroshio intrusion
; Regional ocean modeling system
; Sea surface height
; South China sea
; Western Pacific
; Computer simulation
; Saline water
; Sea level
; Ocean currents
; eddy
; Ekman transport
; geostrophic flow
; hydrography
; oceanic current
; pressure gradient
; salinity
; satellite data
; sea level
; sea surface height
; strait
; Kuroshio Current
; Luzon Strait
; Pacific Ocean
; South China Sea
英文摘要: Inferred from the satellite and in situ hydrographic data from the 1990s and 2000s, the Kuroshio intrusion into the South China Sea (SCS) had a weakening trend over the past two decades. Associated with the weakened Kuroshio intrusion, the Kuroshio loop and eddy activity southwest of Taiwan became weaker, whereas the water above the salinity minimum became less saline in the northern SCS. The sea surface height southwest of Taiwan increased at a slower rate compared to other regions of the SCS because of the weakened Kuroshio intrusion. Simulations using the Regional Ocean Modeling System (ROMS) Pacific model show that the strength of the Kuroshio intrusion into the SCS decreased from 1993 to 2010 with a negative trend, -0.24 sverdrups (Sv) yr-1 (1 Sv[106m3 s-1), in the total Luzon Strait transport (LST). Although wind-induced Ekman transport through the Luzon Strait became weaker, the magnitude at 0.001 Sv yr-1 was too small to compensate for the negative trend of theLST.On the other hand, the piling up of the water induced bymonsoon windswas an important mechanism for changing the pressure gradient across the Luzon Strait and eventually affecting the LST. The sea level gradient between the western Pacific and the SCS had a negative trend, -0.10 cmyr-1, corresponding to a negative trend in the geostrophic transport at -0.20 Sv yr-1. The Kuroshio transport east of Luzon Island also had a negative trend, which might also be linked to the weakening Kuroshio intrusion. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51601
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology Chinese Academy of Sciences, College of Physical and Environmental Oceanography, Ocean University of China, Qingdao, China; School of Marine Sciences, University of Maine, Orono, ME, United States; Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Science, Guangzhou, China; Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; College of Physical and Environmental Oceanography, Ocean University of China, Qingdao, China
Recommended Citation:
Nan F.,Xue H.,Chai F.,et al. Weakening of the kuroshio intrusion into the south china sea over the past two decades[J]. Journal of Climate,2013-01-01,26(20)