Apr. 2025

6

2009 Vol. 28, No. 4

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Articles
Three-dimensional structure of a low salinity tongue in the southern Taiwan Strait observed in the summer of 2005
HONG Huasheng, ZHENG Quanan, HU Jianyu, CHEN Zhaozhang, LI Chunyan, JIANG Yuwu, WAN Zhenwen
2009, (4): 1-7.
Abstract:
Cruise observations with CTD (conductivity-temperature-depth) profiler were carried out in the southern Taiwan Strait in the summer of 2005. Using the cruise data, two-dimensional maps of salinity and temperature distributions at depths of 5, 10, 15,...
A numerical study of the wintertime double-warm-tongue structure in the Huanghai(Yellow) Sea
SHAN Feng, QIAO Fangli, LÜ Xingang, XIA Changshui
2009, (4): 8-15.
Abstract:
Satellite remote sensing observations show that during winter, sea surface temperature (SST) presents the structure of double warm tongues in the Huanghai Sea trough:the western and the eastern warm tongues. Numerical experiments based on POM are car...
Parameterization of ocean wave-induced mixing processes for finite water depth
YANG Yongzeng, ZHAN Run, TENG Yong
2009, (4): 16-22.
Abstract:
Three dimensional wave-induced mixing plays an important role in shallow water area. A quite direct approach through the Reynolds average upon characteristic length scale is proposed to parameterize the horizontal and vertical shallow water mixing. C...
The black water around the Changjiang (Yangtze) Estuary in the spring of 2003
BAI Yan, HE Xianqiang, PAN Delu, ZHU Qiankun, GONG Fang
2009, (4): 23-31.
Abstract:
The Changjiang (Yangtze) Estuary is located in the East China Sea shelf with shallow water. Affected by the tide mixing and the runoff of the Changjiang River and the Qiantang River, the turbidity is very high. Generally, the water-leaving radiance i...
A study of oil spill detection using ASAR images
WANG Guiwu, ZHANG Yuanzhi, LIN Hui
2009, (4): 32-37.
Abstract:
The oil spilled worldwide causes ecological disasters that result in enormous damages to the quality of marine environment, and great expenses on clear-up operations are needed. Due to its wide coverage and day-night all-weather observation capabilit...
Sediment texture and grain-size implications: the Changjiang subaqueous delta
ZHANG Rui, WANG Yaping, GAO Jianhua, PAN Shaoming
2009, (4): 38-49.
Abstract:
Sediment cores were collected from the subaqueous delta of the Changjiang Estuary. Sediment grain-size profiles and their fractal dimensions were analyzed, to elucidate responses to long-term sedimentary processes. In addition, the environmental sens...
BTEX anomalies used as indicators of submarine oil and gas reservoirs
ZHANG Yong, MENG Xiangjun, SUN Ping, CHEN Yanli, QU Peng
2009, (4): 50-56.
Abstract:
It is a conventional method for petroleum prospecting to generally use paraffin hydrocarbon as basic indexes of oil and gas. This conventional geochemical technology, however, shows some limits in the prospecting as paraffin is vulnerable to influenc...
The mapping methods and division of tectonic units of the regional tectonic map in the eastern China seas and adjacent regions
YIN Yanhong, ZHANG Xunhua, WEN Zhenhe, GUO Zhenxuan
2009, (4): 57-64.
Abstract:
The geological-geophysical map series of the eastern China seas and adjacent region (1:1 000 000) will be published in the late half year of 2009. The regional tectonic map is one of the main professional maps. The Mapping methods, the division metho...
Optimization of crude enzyme preparation methods for analysis of glutamine synthetase activity in phytoplankton and field samples
WANG Yujue, WANG Dazhi, HONG Huasheng
2009, (4): 65-71.
Abstract:
Glutamine synthetase (GS) is an important enzyme involved in nitrogen assimilation and metabolism in marine phytoplankton. However, little work has been done in situ due to the limitation of crude enzyme preparation methods. In this study, three enzy...
Cytogenetic characterization of olive flounder Paralichthys olivaceus: DNA content, karyotype, AgNORs and location of major ribosomal genes
WANG Xubo, ZHANG Quanqi, CHEN Yanjie, QI Jie, WANG Zhigang, WANG Xinglian
2009, (4): 72-77.
Abstract:
A cytogenetic analysis of Paralichthys olivaceus was carried out using the flow cytometry method for DNA content, silver staining for the nucleolus organizer region (AgNORs) identification and one-color fluorescence in situ hybridization (FISH) for c...
Approach of moving boundary and its application in 3D tidal current simulation of Changjiang (Yangtze) River Estuary based on ECOMSED model
KUANG Cuiping, SUN Bo, LIU Shuguang, GU Jie, YU Weiwei
2009, (4): 78-85.
Abstract:
Considering three-dimensional model ECOMSED can not simulate wetting-drying of shoal with its fixed boundary, an approach to represent moving boundary in the model is introduced here. This approach smoothly joints the internal and external mode by ma...
Distribution and fluxes of suspended sediments in the offshore waters of the Changjiang (Yangtze) Estuary
WAN Xinning, LI Jiufa, SHEN Huanting
2009, (4): 86-95.
Abstract:
The offshore waters of the Changjiang Estuary are the transitional areas where river-supplied water and sediment are transported to the sea, and material exchanges occur with the neighbored Hangzhou Bay and the Jiangsu waters. Field observations of c...
Laboratory study and analysis of the instability of alongshore currents
REN Chunping, ZOU Zhili
2009, (4): 96-106.
Abstract:
A laboratory experiment on the instability of alongshore currents was conducted on a plane beach with slope 1:40. Low-frequency fluctuations of alongshore currents with the period of approximately 100 s were observed. The dominant frequency and ampli...
The reflection of regular and irregular waves by a partially perforated caisson breakwater on a step bed
LIU Yong, LI Yucheng, TENG Bin, XIA Zhisheng
2009, (4): 107-117.
Abstract:
This study examines the reflection of regular and irregular waves from a partially perforated caisson breakwater located on a step bed. The step bed is treated as an idealized rubble mound foundation. Based on the linear potential theory, an analytic...
Research Notes
Higher-order Boussinesq-type equations for interfacial waves in a two-fluid system
YANG Hongli, YANG Liangui, SONG Jinbao, Hou Yijun
2009, (4): 118-124.
Abstract:
Interfacial waves propagating along the interface between a three-dimensional two-fluid system with a rigid upper boundary and an uneven bottom are considered. There is a light fluid layer overlying a heavier one in the system, and a small density di...