scholarly journals Intensified Springtime Deep Convection over the South China Sea and the Philippine Sea Dries Southern China

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Zhenning Li ◽  
Song Yang ◽  
Bian He ◽  
Chundi Hu
Keyword(s):  
South China Sea ◽  
South China ◽  
Southern China ◽  
Deep Convection ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Philippine Sea

scholarly journals Intermingled fates of the South China Sea and Philippine Sea plate

2019 ◽  
Vol 6 (5) ◽  
pp. 886-890 ◽  
Author(s):  
Minghui Zhao ◽  
Jean-Claude Sibuet ◽  
Jonny Wu
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Philippine Sea Plate ◽  
The South ◽  
China Sea ◽  
Philippine Sea

Synoptic Disturbances over the Equatorial South China Sea and Western Maritime Continent during Boreal Winter

2005 ◽  
Vol 133 (3) ◽  
pp. 489-503 ◽  
Author(s):  
C-P. Chang ◽  
P. A. Harr ◽  
H-J. Chen
Keyword(s):  
South China Sea ◽  
South China ◽  
Deep Convection ◽  
The South China Sea ◽  
Boreal Winter ◽  
Synoptic Scale ◽  
The South ◽  
Maritime Continent ◽  
Cold Surge ◽  
China Sea

Abstract During boreal winter, the Maritime Continent is a region of deep cumulus convection and heavy precipitation systems that play a major role in several global- and regional-scale processes. Over the western part of this region, the synoptic-scale Borneo vortex, the northeast cold surge, and the intraseasonal Madden–Julian oscillation (MJO) contribute to the variability in deep convection. This work studies the impact on deep convection due to interactions among these three different motion systems. Furthermore, the role of the unique topography of the region is examined with respect to the variability in the synoptic-scale cold surge and Borneo vortex. On the synoptic scale, the interaction of northeast winds with local topography and the dynamic response to the change in latitude contribute to the turning of the winds and localized patterns of deep convection. In days without a Borneo vortex, deep convection tends to be suppressed over the South China Sea and Borneo and enhanced downstream over the landmasses on the western and southern peripheries of the equatorial South China Sea. The pattern is reversed in days with a vortex. The presence of a cold surge enhances this contrast. The surge also interacts with the Borneo vortex, in that the vortex is strengthened and the vortex center shifts from over the South China Sea to be located over the western coast of Borneo. The frequency of cold surges and vortex days is reduced during periods when the MJO is present. Composites of large-scale circulation and outgoing longwave radiation are used to show that often the MJO-related circulation patterns oppose the synoptic-scale cold-surge and vortex circulations. Thus, a primary impact of the MJO is to inhibit weak cold-surge events, which then produces a secondary impact on the Borneo vortex via interactions between the cold-surge winds and the vortex.

Key to mangrove pollen and spores of southern China: an aid to palynological interpretation of Quaternary deposits in the South China Sea

2012 ◽  
Vol 176-177 ◽  
pp. 41-67 ◽  
Author(s):  
Limi Mao ◽  
David J. Batten ◽  
Toshiyuki Fujiki ◽  
Zhen Li ◽  
Lu Dai ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Southern China ◽  
The South China Sea ◽  
The South ◽  
Quaternary Deposits ◽  
China Sea ◽  
Pollen And Spores

scholarly journals Interdecadal Change of the South China Sea Summer Monsoon Onset

2012 ◽  
Vol 25 (9) ◽  
pp. 3207-3218 ◽  
Author(s):  
Yoshiyuki Kajikawa ◽  
Bin Wang
Keyword(s):  
South China Sea ◽  
Summer Monsoon ◽  
South China ◽  
The South China Sea ◽  
Western Pacific ◽  
Significant Advance ◽  
Interdecadal Change ◽  
The South ◽  
China Sea ◽  
Philippine Sea

A significant advance in the onset dates of the South China Sea summer monsoon (SCSSM) is detected around 1993/94: the epochal mean onset date is 30 May for 1979–93 and 14 May for 1994–2008. The relatively late onset during the first epoch is primarily determined by the northward seasonal march of the intertropical convergence zone, whereas the advanced onset during the second epoch is affected by the enhanced activity of northwestward-moving tropical disturbances from the equatorial western Pacific. During 1994–2008, the intraseasonal variability (ISV) over the western Pacific was enhanced during the period from mid-April to mid-May; further, the number of tropical cyclones (TCs), which passed through the South China Sea (SCS) and Philippine Sea during the same period, is about doubled compared with those occurring during 1979–93. This enhanced ISV and TC activity over the SCS and Philippine Sea are attributed to a significant increase in SST over the equatorial western Pacific from the 1980s to 2000s. Therefore, the advanced SCSSM onset is rooted in the decadal change of the SST over the equatorial western Pacific.

scholarly journals How can 30–60-day ISO move from the South China Sea to Southern China?

2020 ◽  
Vol 54 (7-8) ◽  
pp. 3613-3626
Author(s):  
Bin Zheng ◽  
Yanyan Huang ◽  
Chunhui Li ◽  
Ailan Lin
Keyword(s):  
South China Sea ◽  
South China ◽  
Southern China ◽  
The South China Sea ◽  
The South ◽  
China Sea

scholarly journals Influence of the Size of Supertyphoon Megi (2010) on SST Cooling

2018 ◽  
Vol 146 (3) ◽  
pp. 661-677 ◽  
Author(s):  
Iam-Fei Pun ◽  
I.-I. Lin ◽  
Chun-Chi Lien ◽  
Chun-Chieh Wu
Keyword(s):  
South China Sea ◽  
Size Effect ◽  
South China ◽  
Thermal Structure ◽  
The South China Sea ◽  
The South ◽  
Translation Speed ◽  
China Sea ◽  
Philippine Sea ◽  
Sst Cooling

Supertyphoon Megi (2010) left behind two very contrasting SST cold-wake cooling patterns between the Philippine Sea (1.5°C) and the South China Sea (7°C). Based on various radii of radial winds, the authors found that the size of Megi doubles over the South China Sea when it curves northward. On average, the radius of maximum wind (RMW) increased from 18.8 km over the Philippine Sea to 43.1 km over the South China Sea; the radius of 64-kt (33 m s−1) typhoon-force wind (R64) increased from 52.6 to 119.7 km; the radius of 50-kt (25.7 m s−1) damaging-force wind (R50) increased from 91.8 to 210 km; and the radius of 34-kt (17.5 m s−1) gale-force wind (R34) increased from 162.3 to 358.5 km. To investigate the typhoon size effect, the authors conduct a series of numerical experiments on Megi-induced SST cooling by keeping other factors unchanged, that is, typhoon translation speed and ocean subsurface thermal structure. The results show that if it were not for Megi’s size increase over the South China Sea, the during-Megi SST cooling magnitude would have been 52% less (reduced from 4° to 1.9°C), the right bias in cooling would have been 60% (or 30 km) less, and the width of the cooling would have been 61% (or 52 km) less, suggesting that typhoon size is as important as other well-known factors on SST cooling. Aside from the size effect, the authors also conduct a straight-track experiment and find that the curvature of Megi contributes up to 30% (or 1.2°C) of cooling over the South China Sea.

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