Particle dynamics of the surface, intermediate, and benthic nepheloid layers under contrasting conditions of summer monsoon and typhoon winds on the boundary between the Taiwan Strait and East China Sea

2017 ◽  
Vol 156 ◽  
pp. 130-144 ◽  
Author(s):  
Xiaoqin Du ◽  
James T. Liu
Keyword(s):  
East China Sea ◽  
Summer Monsoon ◽  
Particle Dynamics ◽  
Taiwan Strait ◽  
East China ◽  
China Sea ◽  
Surface Intermediate ◽  
The Taiwan Strait

scholarly journals Water Exchange across Isobaths over the Continental Shelf of the East China Sea

2017 ◽  
Vol 47 (5) ◽  
pp. 1043-1060 ◽  
Author(s):  
Jing Zhang ◽  
Xinyu Guo ◽  
Liang Zhao ◽  
Yasumasa Miyazawa ◽  
Qun Sun
Keyword(s):  
Continental Shelf ◽  
East China Sea ◽  
Water Exchange ◽  
Bottom Layer ◽  
Taiwan Strait ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
The Taiwan Strait ◽  
The Kuroshio

AbstractOnshore and offshore currents and the associated volume transport across three isobaths (50, 100, and 200 m) over the continental shelf of the East China Sea were examined using daily reanalysis data in 1993–2012. After being averaged along the isobaths, the velocities across 100 and 50 m are onshore in the bottom layer but offshore in the surface layer. In contrast, those across the 200-m isobath are onshore in the surface and bottom layers but without a clear direction in the midlayer, suggesting a three-layer structure. The surface offshore current across the 100-m isobath mainly arises from the Taiwan Strait Current, while the surface onshore current across the 200-m isobath mainly arises from the Kuroshio, both of which converge in the area between the 100- and 200-m isobaths and flow toward the Tsushima Strait. The control of bottom Ekman dynamics on the onshore bottom currents is important at the 100-m isobath, partly important at the 200-m isobath, and slightly important at the 50-m isobath. The seasonal variations of onshore and offshore currents in the surface layers across the three isobaths are likely caused by local winds, the Taiwan Strait Current, and the Changjiang discharge, while those in midlayer across the 200-m isobath demonstrate a strong geostrophic control and can be interpreted from a traditional viewpoint on the Kuroshio intrusion over the entire water column across the shelf slope. The close connection of bottom onshore currents across the three isobaths suggests that the bottom layer is an important pathway for water exchange of shelf water and the open sea.

scholarly journals A 5-year study of the influence of the northeast and southwest monsoons on copepod assemblages in the boundary coastal waters between the East China Sea and the Taiwan Strait

2006 ◽  
Vol 28 (10) ◽  
pp. 943-958 ◽  
Author(s):  
Jiang-Shiou Hwang ◽  
Sami Souissi ◽  
LI-Chun Tseng ◽  
Laurent Seuront ◽  
François G. Schmitt ◽  
...  
Keyword(s):  
East China Sea ◽  
Coastal Waters ◽  
Taiwan Strait ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
The Taiwan Strait

scholarly journals Two new benthicEuphilomedesKornicker, 1967 (Ostracoda, Myodocopida, Philomedidae) from the Taiwan Strait (East China Sea)

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3146 ◽  
Author(s):  
Peng Xiang ◽  
Xiaoyin Chen ◽  
Ruixiang Chen ◽  
Jinghong Lin ◽  
Yu Wang ◽  
...  
Keyword(s):  
New Species ◽  
East China Sea ◽  
Related Species ◽  
Morphological Characteristics ◽  
Taiwan Strait ◽  
East China ◽  
Aquatic Environments ◽  
China Sea ◽  
Two New Species ◽  
The Taiwan Strait

Ostracods are small bivalved crustaceans widely distributed in aquatic environments and in total 99 species have been recorded in genusEuphilomedesKornicker, 1967. In this study, we further describe two new species of benthic ostracods in this genus,Euphilomedes liuruiyiisp. nov. andEuphilomedes pentacanthossp. nov., collected from the Taiwan Strait in China. These two species can be easily distinguished from their congeners by some crucial morphological characteristics, including the carapace shape, the numbers of main and secondary furcal claws, and their arrangement of furcal claws. In addition the first antenna, endopod of second antenna, frontal organ, mandible and the seventh limb also differentiate these two species from related species.

scholarly journals A 5000-Year Sedimentary Record of East Asian Winter Monsoon from the Northern Muddy Area of the East China Sea

Atmosphere ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1376
Author(s):  
Yanping Chen ◽  
Yan Li ◽  
Wenzhe Lyu ◽  
Dong Xu ◽  
Xibin Han ◽  
...  
Keyword(s):  
East China Sea ◽  
Summer Monsoon ◽  
Winter Monsoon ◽  
East China ◽  
Coarse Particles ◽  
The East China Sea ◽  
China Sea ◽  
The Past ◽  
Sedimentary Dynamics ◽  
Muddy Area

The variability of the winter monsoon is one of the key components of the Asian monsoon, significantly influencing paleoenvironmental evolution in East Asia. However, whether the winter or the summer monsoon is the dominated factor controlling sedimentary dynamics of the muddy areas of the continental shelves of the East China Sea is debated, due to lack of consistency between various winter monsoon proxies in previous studies. In this work, the sediments of the upper part of core ECS-DZ1 with several marine surface samples were studied in terms of sediment grain size and radiocarbon dating, and changes in sedimentary dynamics of the northern muddy area of the ECS over the past 5000 years were documented. The main findings are as follows: (1) regional sedimentary dynamics were low and did not significantly change since the middle Holocene; (2) coarse particles are the dominated component in the sediments; (3) a proxy can be derived to indicate changes in winter monsoon. Based on this reconstructed winter monsoon record, we found that this record was generally negatively correlated to the stalagmite-based summer monsoon variability over the past 3500 years, but positively correlated before that. Moreover, this record can be well correlated to changes in the Kuroshio Current and the Bond ice-rafting debris events in the North Atlantic on millennial timescales, inferring large-scale and common atmospheric dynamics across the Asian continent over the past 5000 years. Therefore, we concluded that the winter monsoon is the predominant factor controlling sedimentary dynamics in the northern part of the ECS and proposed that the contribution of coarse particles may be one of potential indices to identify the role of the winter and the summer monsoons in sedimentary evolution.

Secular Changes in the Tidal Amplitude and Influence of Sea-Level Rise in the East China Sea

2014 ◽  
Vol 9 (1) ◽  
pp. 48-54 ◽  
Author(s):  
Akira Tai ◽  
◽  
Kaori Tanaka ◽  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
East China Sea ◽  
Measurement Data ◽  
East China ◽  
Tidal Amplitude ◽  
The East China Sea ◽  
Secular Changes ◽  
China Sea ◽  
The Taiwan Strait

The characteristics of secular changes in M2tidal amplitude in the East China Sea and the effect of projected sea level rise on tide amplitude were studied. Based on measurement data analysis, it was clarified that rapid sea level rise and M2tidal amplitude decrease had been observed at observatories that face the East China Sea around 1998. The change in M2tidal amplitude of the East China Sea by sea level rise was then studied in numerical experiments. And results showed that tidal amplitude increased on the west coast of the Korean Peninsula and the Taiwan Strait. A similar study was conducted for the Yatsushiro Sea and the Ariake Sea, which showed the highest M2tidal amplitude in Japan. As a result, it was found that M2tidal amplitude increased in the whole bays, which was against resonance tide theory. It was shown that mean sea level rise and M2tidal amplitude increase and decrease affected by sea level rise must be considered when predicting the risk of seashore disaster by global warming.

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