High‐resolution upper Pliocene to Pleistocene calcareous nannofossil biostratigraphy in Ocean Drilling Program Hole 1146A in the South China Sea

Island Arc ◽  
2021 ◽  
Author(s):  
Sara Emanuel ◽  
Tokiyuki Sato ◽  
Shun Chiyonobu ◽  
J. Bruce H. Shyu ◽  
Davide Bassi ◽  
...  
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Calcareous Nannofossil ◽  
The South ◽  
Ocean Drilling Program ◽  
China Sea ◽  
Ocean Drilling ◽  
Calcareous Nannofossil Biostratigraphy

Seawater Temperature Seasonality in the South China Sea During the Late Holocene Derived From High-Resolution Sr/Ca Ratios of Tridacna Gigas

2015 ◽  
Vol 83 (2) ◽  
pp. 298-306 ◽  
Author(s):  
Hong Yan ◽  
Liguang Sun ◽  
Da Shao ◽  
Yuhong Wang
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
Late Holocene ◽  
Seawater Temperature ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Tridacna Gigas ◽  
Temperature Seasonality

Temperature seasonality, the difference between summer and winter temperature, has significant influences on global terrestrial and marine ecosystems. However, most of proxy-based climate records are of limited temporal resolution and thus insufficient to quantify the past temperature seasonality. In this study, high-resolution Sr/Ca ratios of modern (live-caught) and fossil (dead-collected) Tridacna gigas shells from the South China Sea (SCS) were used to reconstruct the seawater temperature seasonality during the late Holocene. The averaged seawater temperature seasonality around 2165 ± 75 BC (4.46 ± 1.41°C, derived from the data of 18 yr) were similar to the seasonality of recent decade (4.41 ± 0.82°C during AD 1994–2005), but the temperature seasonality around AD 50 ± 40 (3.69 ± 1.37°C, derived from the data of 48 yr) and AD 990 ± 40 (3.64 ± 0.87°C, derived from the data of 11 yr) was significantly lower than that during AD 1994–2005. The reduced seasonality around AD 990 ± 40 was attributable to the unusually warm winter during the medieval times, probably caused by the weakening of East Asian Winter Monsoon. Our study highlighted the potential of T. gigas shells in providing high-resolution seasonality climate information during the late Holocene.

scholarly journals On the high resolution regional weather forecast model (HRM) and forecasting tropical cyclone motion over the south china sea

2005 ◽  
Vol 27 (4) ◽  
pp. 193-203
Author(s):  
Le Duc ◽  
Le Cong Thang ◽  
Kieu Thi Xin
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
Weather Forecast ◽  
Forecast Model ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Weather Forecast Model ◽  
Slow Moving

Chan (1995) [2] has found that, only 70% in 60 cases of the tropical cyclone (TC) movement test (TMT-90) developed from steering flows. The 30% remain of cases have to be explained by nonbarotropic processes. We are of the opinion that all weak, slow-moving and unexpected changing TCs over the South China Sea are in this 30% set. The nonlinear interaction between barotropic and nonbarotropic processes has affected on motion and structure of such TCs. In this paper, we use the high resolution weather forecast model (HRM), which is able to simulate meso-scale phenomena in limited regions, to predict motion of TCs in the South China Sea in 2002-2004, including two typical weak, slow-moving and unexpected changing TCs Mekhala and Nepartak. We have chosen two forecast domains with different areas and resolutions. The results show that with the smaller domain, appropriate buffer and higher resolution HRM can predict better motion of TCs operating in the South China Sea.

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