Spatial-temporal distribution of a Noctiluca scintillans population and its adaption to environmental conditions in northern South China Sea

2013 ◽  
Vol 20 (6) ◽  
pp. 685-692
Author(s):  
Wang Yu ◽  
Ye Youyin ◽  
Lin Mao ◽  
Chen Xingqun
Keyword(s):  
South China Sea ◽  
South China ◽  
Environmental Conditions ◽  
Northern South China Sea ◽  
Temporal Distribution ◽  
Noctiluca Scintillans ◽  
China Sea

scholarly journals Eddy characteristics in the northern South China Sea as inferred from Lagrangian drifter data

Ocean Science ◽  
2011 ◽  
Vol 7 (5) ◽  
pp. 661-669 ◽  
Author(s):  
◽  
◽  
Keyword(s):  
South China Sea ◽  
South China ◽  
Large Scale ◽  
Northern South China Sea ◽  
Temporal Distribution ◽  
Height Anomaly ◽  
Spatial And Temporal Patterns ◽  
China Sea ◽  
Eddy Characteristics ◽  
Anticyclonic Eddies

Abstract. Cyclonic and anticyclonic eddies from large scale to submesoscale in the northern South China Sea (NSCS) have been statistically characterized based on the satellite-tracked Lagrangian drifters using our developed geometric eddy identification method. There are in total 2208 eddies identified, 70% of which are anticyclonic eddies. If the submesoscale eddies are eliminated, the other eddies in the NSCS will show a 1.2:1 ratio of the number of anticyclones (210) to the number of cyclones (171). The spatial distribution of the eddies is regional: in southwest of Taiwan, the number of anticyclones dominates the number of cyclones, and most of them are the submesoscale anticyclones with small radii; in contrast, the large and medium cyclonic eddies are a little more than the same scale anticyclonic eddies in northwest of Luzon. The temporal distribution of eddy number in the NSCS has a close relation with the Asian monsoon. The number of the large and medium eddies peaks during the winter monsoon, while the submesoscale eddies are apt to generate in the summer monsoon. The spatial and temporal patterns have a good agreement with the results of the sea surface height anomaly (SSHA). The maximum and mean tangential velocities of anticyclones (cyclones) are 40 (30) cm s−1 and 25 (15) cm s−1, respectively. The calculated normalized vorticities from drifters suggest that although the mesoscale eddies may be considered in geostrophic balance, ageostrophic dynamics and centrifugal effects may play an important role for the growth and decay of the mesoscale cores.

Spatial and temporal distribution of nanoflagellates in the northern South China Sea

Hydrobiologia ◽  
2008 ◽  
Vol 605 (1) ◽  
pp. 143-157 ◽  
Author(s):  
Bangqin Huang ◽  
Wenlu Lan ◽  
Zhenrui Cao ◽  
Minhan Dai ◽  
Lingfeng Huang ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
Temporal Distribution ◽  
Spatial And Temporal Distribution ◽  
China Sea

scholarly journals Eddy characteristics in the Northern South China Sea as inferred from Lagrangian drifter data

2011 ◽  
Vol 8 (4) ◽  
pp. 1575-1599 ◽  
Author(s):  
J. X. Li ◽  
R. Zhang ◽  
B. Jin
Keyword(s):  
South China Sea ◽  
South China ◽  
Large Scale ◽  
Northern South China Sea ◽  
Temporal Distribution ◽  
Spatial And Temporal Patterns ◽  
China Sea ◽  
Eddy Characteristics ◽  
Anticyclonic Eddies ◽  
Lagrangian Drifter

Abstract. Cyclones and anticyclones from large scale to submesoscale on the Northern South China Sea (NSCS) have been statistically characterized based on the satellite-tracked Lagrangian drifter data using a geometric eddy identification method. There are totally 1972 eddies identified, 4/5 of which are anticyclonic eddies. If the submesoscale eddies are eliminated, the other eddies in the NSCS will show a 1.1–1 dominance with the number (133) of anticyclones over the number (122) of cyclones. The spatial distribution of all the eddies are: in Zone Z1, the number of anticyclones dominate the number of cyclones, most of which are the submesoscale anticyclonic eddies with small radii; whereas, in Zone Z2, cyclonic eddies are a little more than anticyclonic eddies. The temporal distribution of eddy number in the NSCS has a close relation with monsoon. The number of the large eddies peaks during the winter monsoon, while they tend to decrease quickly in the transition periods of monsoon. In contrast, submesoscale eddies are likely to generate in the summer monsoon, which may be related to the baroclinic instability in the NSCS. The spatial and temporal patterns have a good agreement with the results of SSHA. The maximum and mean tangential velocities of anticyclones (cyclones) are 45 (30) cm s−1 and 30 (15) cm s−1, respectively. Large scale eddies can be considered in geostrophic balance, but ageostrophic dynamics may be important for the submesoscale eddies where centrifugal effects cannot be ignored in the NSCS.

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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