Three-dimensional circulation in northern South China Sea during early summer of 2015

2021 ◽  
Vol 40 (7) ◽  
pp. 1-14
Author(s):  
Huiqun Wang ◽  
Yaochu Yuan ◽  
Weibing Guan ◽  
Chenghao Yang ◽  
Dongfeng Xu
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
Three Dimensional ◽  
Early Summer ◽  
China Sea

Three-dimensional regional oceanic element field reconstruction with multiple underwater gliders in the Northern South China Sea

2020 ◽  
Vol 105 ◽  
pp. 102405
Author(s):  
Runfeng Zhang ◽  
Shaoqiong Yang ◽  
Yanhui Wang ◽  
Shuxin Wang ◽  
Zhongke Gao ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
Three Dimensional ◽  
Field Reconstruction ◽  
China Sea ◽  
Underwater Gliders

Characteristics of the Marine Boundary Layer Jet over the South China Sea during the Early Summer Rainy Season of Taiwan

2019 ◽  
Vol 147 (2) ◽  
pp. 457-475 ◽  
Author(s):  
Chuan-Chi Tu ◽  
Yi-Leng Chen ◽  
Pay-Liam Lin ◽  
Yu Du
Keyword(s):  
Boundary Layer ◽  
South China Sea ◽  
South China ◽  
Rainy Season ◽  
Marine Boundary Layer ◽  
Frontal Zone ◽  
Northern South China Sea ◽  
Early Summer ◽  
Pressure Gradients ◽  
China Sea

Abstract The marine boundary layer jets (MBLJs) over the northern South China Sea during the early summer rainy season over Taiwan are analyzed using 5-yr (2008–12) National Centers for Environmental Prediction Climate Forecast System Reanalysis data with a 6-h interval. The MBLJ is distinctly different from the low-level jets associated with the subsynoptic frontal systems. During this period, the MBLJ events over the northern South China Sea mainly occur during the second half of the monsoon rainy season over Taiwan (after 1 June) and have a wind speed maximum around the 925-hPa level. The MBLJs are mainly related to the subsynoptic-scale pressure gradients related to a relatively deep mei-yu trough over southeastern China and a stronger-than-normal west Pacific subtropical high. Within the MBL, there is a three-way balance among pressure gradients, Coriolis force, and surface friction, with cross-isobar ageostrophic winds pointing toward the mei-yu trough throughout the diurnal cycle. At the jet core, the vertical wind profile resembles an Ekman spiral with supergeostrophic winds >12 m s−1 near the top of the MBL. The MBLJs are strongest at night and close to geostrophic flow in the late afternoon/early evening. This is because the friction velocity and ageostrophic wind decrease during daytime in response to mixing in the lowest levels. The MBLJs play an important role in horizontal moisture transport from the northern South China Sea to the Taiwan area. In the frontal zone, the moisture tongue extends vertically upward. The rainfall production is related to vertical motions in the frontal zone or localized lifting due to orographic effects.

Neogene igneous intrusions in the northern South China Sea: Evidence from high-resolution three dimensional seismic data

2014 ◽  
Vol 54 ◽  
pp. 83-95 ◽  
Author(s):  
Qiliang Sun ◽  
Shiguo Wu ◽  
Joe Cartwright ◽  
Shenghao Wang ◽  
Yintao Lu ◽  
...  
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
Seismic Data ◽  
Northern South China Sea ◽  
Three Dimensional ◽  
China Sea ◽  
Igneous Intrusions

scholarly journals Genesis and Development of Spring Rainstorms in Northern Southeast Asia: Southwest China–Northern Indochina and the Northern South China Sea

2017 ◽  
Vol 145 (12) ◽  
pp. 4949-4976
Author(s):  
Tsing-Chang Chen ◽  
Jenq-Dar Tsay ◽  
Ming-Chang Yen
Keyword(s):  
South China Sea ◽  
Southeast Asia ◽  
South China ◽  
Northern South China Sea ◽  
Early Summer ◽  
Mature Stage ◽  
China Sea ◽  
New Findings ◽  
New Perspective ◽  
Study Offer

During May and June, the monsoon rainfall in northern Southeast Asia is primarily produced by rainstorms. At the mature stage, these storms, coupled with a midtropospheric subsynoptic-scale trough, produce rainfall ≥50 mm (6 h)−1and exhibit a cyclonic surface vortex. With a scale ~ O(102) km, rainstorms during the period of 1979–2016 are identified with station and satellite observations, along with assimilation data. Several dynamic processes of rainstorm geneses are disclosed by an extensive analysis. 1) Maximum occurrence of rainstorm geneses is located in the midtroposphere of two regions (northern Vietnam–southwestern China and the northern South China Sea), but eventually penetrates downward to the surface. 2) The environment favorable for rainstorm genesis is a southwest–northeast-oriented narrow trough formed by the confluence of the midtropospheric northeasterly around the eastern Tibetan Plateau and the lower-tropospheric monsoon southwesterlies. Because the criterion for Charney–Stern instability is met by the shear flow of this narrow trough, rainstorms are likely initiated by this instability. 3) The majority of rainstorm geneses occurs during the evening over the land and the morning at sea. This timing preference is caused by the modulation of the clockwise rotation of the East Asia continent circulation in response to the diurnal variation of the land–sea thermal contrast. These new findings from this study offer not only a new perspective for the genesis mechanism of the late spring–early summer rainstorms in northern Southeast Asia, but also a new initiative to develop medium-range forecasts for these rainstorms.

DEEPWATER SEDIMENT TRANSPORTATION MODELS FOR NORTHERN SOUTH CHINA SEA SLOPES

2010 ◽  
Vol 30 (4) ◽  
pp. 39-48 ◽  
Author(s):  
Shengqiang YUAN ◽  
Shiguo WU ◽  
Zongju ZHAO ◽  
Fangjian XU
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
China Sea ◽  
Sediment Transportation ◽  
Transportation Models

GEOPHYSICAL RESPONSE OF THE LIUHUA CARBONATE PLATFORM IN NORTHERN SOUTH CHINA SEA

2011 ◽  
Vol 31 (4) ◽  
pp. 105-112
Author(s):  
Guangxu ZHANG ◽  
Shiguo WU ◽  
Weilin ZHU ◽  
Hesheng SHI ◽  
Duanxin CHEN
Keyword(s):  
South China Sea ◽  
South China ◽  
Carbonate Platform ◽  
Northern South China Sea ◽  
China Sea
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