scholarly journals Water Mass Characteristics and Stratification at the Shallow Sunda Shelf of Southern South China Sea

2015 ◽  
Vol 05 (04) ◽  
pp. 455-467 ◽  
Author(s):  
Nur Hidayah Roseli ◽  
Mohd Fadzil Akhir ◽  
Mohd Lokman Husain ◽  
Fredolin Tangang ◽  
Azizi Ali
Keyword(s):  
South China Sea ◽  
South China ◽  
Water Mass ◽  
Southern South China Sea ◽  
Sunda Shelf ◽  
China Sea

QUATERNARY SEDIMENTATION IN THE MOLENGRAAFF PALEO-DELTA, NORTHERN SUNDA SHELF (SOUTHERN SOUTH CHINA SEA)

2003 ◽  
pp. 201-216 ◽  
Author(s):  
HOW KIN WONG ◽  
THOMAS LÜDMANN ◽  
CHRISTIANE HAFT ◽  
ALKE-MARIT PAULSEN ◽  
CHRISTIAN HÜBSCHER ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Southern South China Sea ◽  
Sunda Shelf ◽  
China Sea

scholarly journals Tides and Their Dynamics over the Sunda Shelf of the Southern South China Sea

PLoS ONE ◽  
2016 ◽  
Vol 11 (9) ◽  
pp. e0162170 ◽  
Author(s):  
Farshid Daryabor ◽  
See Hai Ooi ◽  
Azizan Abu Samah ◽  
Abolghasem Akbari
Keyword(s):  
South China Sea ◽  
South China ◽  
Southern South China Sea ◽  
Sunda Shelf ◽  
China Sea

Contrasting Characteristics of Convection over the Northern and Southern South China Sea during SCSMEX

2006 ◽  
Vol 134 (4) ◽  
pp. 1041-1062 ◽  
Author(s):  
Paul E. Ciesielski ◽  
Richard H. Johnson
Keyword(s):  
South China Sea ◽  
South China ◽  
Kelvin Wave ◽  
Southern South China Sea ◽  
Rainy Period ◽  
Stratiform Rain ◽  
China Sea ◽  
Convective Systems ◽  
Early Afternoon ◽  
Dominant Feature

Abstract Observations from two enhanced sounding arrays during the May–June 1998 South China Sea Monsoon Experiment (SCSMEX) are used to determine and contrast the properties of convection over the northern and southern South China Sea (SCS). A regression analysis between SST data and monthly rainfall indicates that the ENSO signal exerted a strong influence on the rainfall distribution over the SCS during SCSMEX. This resulted in wetter-than-normal conditions along the south China coast and northern SCS, and generally drier-than-average conditions elsewhere, particularly over the Philippine Islands. The monsoon onset as determined by a shift in the low-level winds from easterly to southwesterly over the SCS occurred around mid-May. Over the southern enhanced sounding array (SESA), the onset was characterized by a rainy period associated with the passage of a convectively coupled Kelvin wave. This was followed by a weeklong break and then several episodic rain events with increasingly higher rain rates. Rainfall over the northern enhanced sounding array (NESA), which was largely out of phase with SESA rainfall events, occurred primarily during two 10-day periods separated by a weeklong break. Convective characteristics over the SESA, deduced primarily from heat and moisture budget profiles, indicate a high stratiform rain fraction consisting of alternating periods with decaying mesoscale systems that organized near the western Borneo coastline and shallower convective clouds. In contrast, NESA-averaged profiles were indicative of deep convection with a relatively small stratiform rain fraction, which was confirmed with radar analyses during the onset convective period. The diurnal cycle of convection is a dominant feature throughout much of the SCS. Over both budget regions, early morning (0500–0800 LT) convective systems were frequently initiated near the coasts, then gradually dissipated during the course of the day as the midlevel steering currents moved the systems away from the coastline. These decaying convective systems resulted in an early afternoon (1400 LT) rainfall peak over both sonde arrays.

scholarly journals Impact of the Kuroshio intrusion on the nutrient inventory in the upper northern South China Sea: insights from an isopycnal mixing model

2013 ◽  
Vol 10 (10) ◽  
pp. 6419-6432 ◽  
Author(s):  
C. Du ◽  
Z. Liu ◽  
M. Dai ◽  
S.-J. Kao ◽  
Z. Cao ◽  
...  
Keyword(s):  
South China Sea ◽  
Water Column ◽  
South China ◽  
Water Mass ◽  
Northern South China Sea ◽  
Mixing Model ◽  
Nutrient Concentrations ◽  
Kuroshio Intrusion ◽  
China Sea ◽  
The Kuroshio

Abstract. Based on four cruises covering a seasonal cycle in 2009–2011, we examined the impact of the Kuroshio intrusion, featured by extremely oligotrophic waters, on the nutrient inventory in the central northern South China Sea (NSCS). The nutrient inventory in the upper 100 m of the water column in the study area ranged from ∼200 to ∼290 mmol m−2 for N + N (nitrate plus nitrite), from ∼13 to ∼24 mmol m−2 for soluble reactive phosphate and from ∼210 to ∼430 mmol m−2 for silicic acid. The nutrient inventory showed a clear seasonal pattern with the highest value appearing in summer, while the N + N inventory in spring and winter had a reduction of ∼13 and ∼30%, respectively, relative to that in summer. To quantify the extent of the Kuroshio intrusion, an isopycnal mixing model was adopted to derive the proportional contribution of water masses from the SCS proper and the Kuroshio along individual isopycnal surfaces. The derived mixing ratio along the isopycnal plane was then employed to predict the genuine gradients of nutrients under the assumption of no biogeochemical alteration. These predicted nutrient concentrations, denoted as Nm, are solely determined by water mass mixing. Results showed that the nutrient inventory in the upper 100 m of the NSCS was overall negatively correlated to the Kuroshio water fraction, suggesting that the Kuroshio intrusion significantly influenced the nutrient distribution in the SCS and its seasonal variation. The difference between the observed nutrient concentrations and their corresponding Nm allowed us to further quantify the nutrient removal/addition associated with the biogeochemical processes on top of the water mass mixing. We revealed that the nutrients in the upper 100 m of the water column had a net consumption in both winter and spring but a net addition in fall.

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