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Three-dimensional constrained gravity inversion of Moho depth and crustal structural characteristics at Mozambique continental margin Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-22 Shihao Yang, Zhaocai Wu, Yinxia Fang, Mingju Xu, Jialing Zhang, Fanlin Yang
Mozambique’s continental margin in East Africa was formed during the break-off stage of the east and west Gondwana lands. Studying the geological structure and division of continent-ocean boundary (COB) in Mozambique’s continental margin is considered of great significance to rebuild Gondwana land and understand its movement mode. Along these lines, in this work, the initial Moho was fit using the
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Diagenetic evolution and reservoir quality of the Oligocene sandstones in the Baiyun Sag, Pearl River Mouth Basin, South China Sea Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-16 Bing Tian, Shanshan Zuo, Youwei Zheng, Jie Zhang, Jiayu Du, Jun Tang
The Oligocene Zhuhai sandstones are significant reservoirs for hydrocarbons in the Baiyun Sag, South China Sea. For effective appraisal, exploration and exploitation of such a deep-water hydrocarbon sandstone, samples of five wells from depths of 850 m to 3 000 m were studied. A series of comprehensive petrographic and geochemical analyses were performed to unravel the diagenetic features and their
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Effects of shore-normal coastal structure on medium- to long-term embayed shoreline evolution Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-16 Jitao Yu, Yuanting Ding, Pei Liu, Renfu Fan, Lin Zhang
Based on high-tide shoreline data extracted from 87 Landsat satellite images from 1986 to 2019 as well as using the linear regression rate and performing a Mann-Kendall (M–K) trend test, this study analyzes the linear characteristics and nonlinear behavior of the medium- to long-term shoreline evolution of Jinghai Bay, eastern Guangdong Province. In particular, shoreline rotation caused by a shore-normal
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U-Pb zircon geochronology of basaltic pyroclastic rocks from the basement beneath the Xisha Islands in the northwestern South China Sea and its geological significance Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-15 Yu Zhang, Kefu Yu, Shiying Li
As one of the micro-blocks dispersed in the South China Sea (SCS), the basement of the Xisha Islands has rarely been drilled because of the thick overlying Cenozoic sediments, which has led to a confused understanding of the pre-Cenozoic basement of the Xisha Islands. Well CK-1, a kilometer-scale major scientific drill in the Xisha Islands in the northwestern SCS, penetrated thick reefal limestone
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Effect of particle composition and consolidation degree on the wave-induced liquefaction of soil beds Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-15 Zhiyuan Chen, Yupeng Ren, Guohui Xu, Meng Li
The wave-induced liquefaction of seabed is responsible for causing damage to marine structures. Particle composition and consolidation degree are the key factors affecting the pore water pressure response and liquefaction behavior of the seabed under wave action. The present study conducted wave flume experiments on silt and silty fine sand beds with varying particle compositions. Furthermore, a comprehensive
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Parent-offspring relationship recognition based on SSR and mtDNA confirmed resource supplement effect of Fenneropenaeus chinensis release Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-15 Song Sun, Ding Lyu, Xianshi Jin, Xiujuan Shan, Weiji Wang
The resource of Fenneropenaeus chinensis has declined sharply due to excessive fishing intensity, ecological changes and diseases. In order to supplement the fishing yield and restore resources of F. chinensis, the relevant authorities have carried out the activities of stock enhancement and releasing. It can increase biomass and recover resources. However, compared with increasing biomass, there were
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Research on the generation method of seawater sound velocity model based on Perlin noise Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-15 Zhimiao Chang, Fuxing Han, Zhangqing Sun, Zhenghui Gao, Xueqiu Wang
In the processing of conventional marine seismic data, seawater is often assumed to have a constant velocity model. However, due to static pressure, temperature difference and other factors, random disturbances may often frequently in seawater bodies. The impact of such disturbances on data processing results is a topic of theoretical research. Since seawater sound velocity is a difficult physical
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An improved algorithm based on equivalent sound velocity profile method at large incident angle Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-15 Qianqian Li, Qian Tong, Fanlin Yang, Qi Li, Zhihao Juan, Yu Luo
With the development of ultra-wide coverage technology, multibeam echo-sounder (MBES) system has put forward higher requirements for localization accuracy and computational efficiency of ray tracing method. The classical equivalent sound speed profile (ESSP) method replaces the measured sound velocity profile (SVP) with a simple constant gradient SVP, reducing the computational workload of beam positioning
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The connection of phytoplankton biomass in the Marguerite Bay polynya of the western Antarctic Peninsula to the Southern Annular Mode Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-15 Ning Jiang, Zhaoru Zhang, Ruifeng Zhang, Chuning Wang, Meng Zhou
Antarctic coastal polynyas are biological hotspots in the Southern Ocean that support the abundance of high-trophic-level predators and are important for carbon cycling in the high-latitude oceans. In this study, we examined the interannual variation of summertime phytoplankton biomass in the Marguerite Bay polynya (MBP) in the western Antarctic Peninsula area, and linked such variability to the Southern
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Development of SNP parentage assignment techniques in the yellowfin seabream Acanthopagrus latus Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-15 Hongbo Zhao, Liangmin Huang, Jing Zhang, Songyuan You, Qingmin Zeng, Xiande Liu
Acanthopagrus latus is an essential aquaculture species on the south coast of China. However, there is a lack of systematic breeding of A. latus, which considerably limits the sustainable development of A. latus. As a result, genetic improvements are urgently needed to breed new strains of A. latus with rapid growth and strong resistance to disease. During selective breeding, it is necessary to estimate
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Simulated Indonesian Throughflow in Makassar Strait across the SODA3 products Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-13 Tengfei Xu, Zexun Wei, Haifeng Zhao, Sheng Guan, Shujiang Li, Guanlin Wang, Fei Teng, Yongchui Zhang, Jing Wang
The Indonesian Throughflow (ITF), which connects the tropical Pacific and Indian oceans, plays important roles in the inter-ocean water exchange and regional or even global climate variability. The Makassar Strait is the main inflow passage of the ITF, carrying about 77% of the total ITF volume transport. In this study, we analyze the simulated ITF in the Makassar Strait in the Simple Ocean Data Assimilation
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The variation in basal channels and basal melt rates of Pine Island Ice Shelf Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-12 Mingliang Liu, Zemin Wang, Baojun Zhang, Xiangyu Song, Jiachun An
In recent years, there has been a significant acceleration in the thinning, calving and retreat of the Pine Island Ice Shelf (PIIS). The basal channels, results of enhanced basal melting, have the potential to significantly impact the stability of the PIIS. In this study, we used a variety of remote sensing data, including Landsat, REMA DEM, ICESat-1 and ICESat-2 satellite altimetry observations, and
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What induced the trend shift of mixed-layer depths in the Antarctic Circumpolar Current region in the mid-1980s? Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-12 Shan Liu, Jingzhi Su, Huijun Wang, Cuijuan Sui
An obvious trend shift in the annual mean and winter mixed layer depth (MLD) in the Antarctic Circumpolar Current (ACC) region was detected during the 1960–2021 period. Shallowing trends stopped in mid-1980s, followed by a period of weak trends. The MLD deepening trend difference between the two periods were mainly distributed in the western areas in the Drake Passage, the areas north to Victoria Land
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Predictability of the upper ocean heat content in a Community Earth System Model ensemble prediction system Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-04-11 Ting Liu, Wenxiu Zhong
Upper ocean heat content (OHC) has been widely recognized as a crucial precursor to high-impact climate variability, especially for that being indispensable to the long-term memory of the ocean. Assessing the predictability of OHC using state-of-the-art climate models is invaluable for improving and advancing climate forecasts. Recently developed retrospective forecast experiments, based on a Community
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Fuzzy cluster analysis of water mass in the western Taiwan Strait in spring 2019 Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-18 Zhiyuan Hu, Jia Zhu, Longqi Yang, Zhenyu Sun, Xin Guo, Zhaozhang Chen, Linfeng Huang
The classification of the springtime water mass has an important influence on the hydrography, regional climate change and fishery in the Taiwan Strait. Based on 58 stations of CTD profiling data collected in the western and southwestern Taiwan Strait during the spring cruise of 2019, we analyze the spatial distributions of temperature (T) and salinity (S) in the investigation area. Then by using the
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Gravity anomalies determined from mean sea surface model data over the Gulf of Mexico Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-18 Xuyang Wei, Xin Liu, Zhen Li, Xiaotao Chang, Hongxin Luo, Chengcheng Zhu, Jinyun Guo
With the improvements in the density and quality of satellite altimetry data, a high-precision and high-resolution mean sea surface model containing abundant information regarding a marine gravity field can be calculated from long-time series multi-satellite altimeter data. Therefore, in this study, a method was proposed for determining marine gravity anomalies from a mean sea surface model. Taking
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Exploring spatial non-stationarity of near-miss ship collisions from AIS data under the influence of sea fog using geographically weighted regression: A case study in the Bohai Sea, China Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-12 Yongtian Shen, Zhe Zeng, Dan Liu, Pei Du
Sea fog is a disastrous weather phenomenon, posing a risk to the safety of maritime transportation. Dense sea fogs reduce visibility at sea and have frequently caused ship collisions. This study used a geographically weighted regression (GWR) model to explore the spatial non-stationarity of near-miss collision risk, as detected by a vessel conflict ranking operator (VCRO) model from automatic identification
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Modeling wave attenuation by vegetation with accompanying currents in SWAN Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-12 Hong Wang, Zhan Hu
Coastal wetlands such as salt marshes and mangroves provide important protection against stormy waves. Accurate assessments of wetlands’ capacity in wave attenuation are required to safely utilize their protection services. Recent studies have shown that tidal currents have a significant impact on wetlands’ wave attenuation capacity, but such impact has been rarely considered in numerical models, which
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A typhoon-induced storm surge numerical model with GPU acceleration based on an unstructured spherical centroidal Voronoi tessellation grid Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-12 Yuanyong Gao, Fujiang Yu, Cifu Fu, Jianxi Dong, Qiuxing Liu
Storm surge is often the marine disaster that poses the greatest threat to life and property in coastal areas. Accurate and timely issuance of storm surge warnings to take appropriate countermeasures is an important means to reduce storm surge-related losses. Storm surge numerical models are important for storm surge forecasting. To further improve the performance of the storm surge forecast models
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A multi-module with a two-way feedback method for Ulva drift-diffusion Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-12 Hui Sheng, Jianmeng Li, Qimao Wang, Bin Zou, Lijian Shi, Mingming Xu, Shanwei Liu, Jianhua Wan, Zhe Zeng, Yanlong Chen
The outbreak of Ulva in the Yellow Sea has seriously affected marine ecology and economic activities. Therefore, effective prediction of the distribution of Ulva is of great significance for disaster prevention and reduction. However, the prediction method of Ulva is mainly based on numerical simulation. There are two problems with these methods. First is that the initial distribution of Ulva is simulated
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An improved algorithm for retrieving thin sea ice thickness in the Arctic Ocean from SMOS and SMAP L-band radiometer data Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-12 Lian He, Senwen Huang, Fengming Hui, Xiao Cheng
The aim of this study was to develop an improved thin sea ice thickness (SIT) retrieval algorithm in the Arctic Ocean from the Soil Moisture Ocean Salinity and Soil Moisture Active Passive L-band radiometer data. This SIT retrieval algorithm was trained using the simulated SIT from the cumulative freezing degree days model during the freeze-up period over five carefully selected regions in the Beaufort
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A case study of continental shelf waves in the northwestern South China Sea induced by winter storms in 2021 Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-12 Junyi Li, Chen Zhou, Min Li, Quanan Zheng, Mingming Li, Lingling Xie
This study aims to investigate characteristics of continental shelf wave (CSW) on the northwestern continental shelf of the South China Sea (SCS) induced by winter storms in 2021. Mooring and cruise observations, tidal gauge data at stations Hong Kong, Zhapo and Qinglan and sea surface wind data from January 1 to February 28, 2021 are used to examine the relationship between along-shelf wind and sea
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Study on the interannual variability of the Kerama Gap transport and its relation to the Kuroshio/Ryukyu Current system Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-12 Han Zhou, Kai Yu, Jianhuang Qin, Xuhua Cheng, Meixiang Chen, Changming Dong
An analysis of a 68-year monthly hindcast output from an eddy-resolving ocean general circulation model reveals the relationship between the interannual variability of the Kerama Gap transport (KGT) and the Kuroshio/Ryukyu Current system. The study found a significant difference in the interannual variability of the upstream and downstream transports of the East China Sea- (ECS-) Kuroshio and the Ryukyu
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Retrieval of snow depth on Antarctic sea ice from the FY-3D MWRI data Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-06
Abstract The snow depth on sea ice is an extremely critical part of the cryosphere. Monitoring and understanding changes of snow depth on Antarctic sea ice is beneficial for research on sea ice and global climate change. The Microwave Radiation Imager (MWRI) sensor aboard the Chinese FengYun-3D (FY-3D) satellite has great potential for obtaining information of the spatial and temporal distribution
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Morphotype dependence of Globigerinoides ruber (white) and Trilobatus sacculifer Mg/Ca ratios in the western tropical Pacific: implications for reconstructing the mixed-layer depth Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-06 Qi Jia, Tiegang Li, Zhifang Xiong, Bingbin Qin
Planktonic foraminifer Globigerinoides ruber (white) and Trilobatus sacculifer are the most frequently used mixed-layer dwelling species for reconstructing past oceanic environments. Specifically, the Mg/Ca ratios of these two foraminiferal species have been used for reconstructing tropical/subtropical changes in sea surface temperature (SST). However, these two species have different morphotypes,
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Study of screening, transport pathway, and vasodilation mechanisms on angiotensin-I converting enzyme inhibitory peptide from Ulva prolifera proteins Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-06 Zhiyong Li, Yuan He, Hongyan He, Caiwei Fu, Mengru Li, Aiming Lu, Dongren Zhang, Tuanjie Che, Songdong Shen
In this study, Ulva prolifera protein was used for preparing angiotensin-I converting enzyme (ACE)-inhibitory peptide via virtual gastrointestinal digestion and in silico screening. Some parameters of the obtained peptide, such as inhibition kinetics, docking mechanism, stability, transport pathway, were explored by Lineweaver-Burk plots, molecular docking, in vitro stimulate gastrointestinal (GI)
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Benthic bacterial communities indicate anthropogenic activity footprints in coastal area under long-term marine spatial planning practice Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-06 Yi Sun, Hongjun Li, Daixi Liu, Xiaocheng Wang, Quanming Wang, Xiaoyu Cui, Jingfeng Fan
Marine spatial planning (MSP) is designed to divide the sea area into different types of functional zones, to implement corresponding development activities. However, the long-term impacts of anthropogenic activities associated with MSP practice on the marine microbial biosphere are still unclear. Yalu River Estuary, a coastal region in northeast of China, has been divided into fishery & agricultural
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Chemical diversity of scleractinian corals revealed by untargeted metabolomics and molecular networking Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-06 Jiying Pei, Yuxia Zhou, Shiguo Chen, Kefu Yu, Zhenjun Qin, Ruijie Zhang, Yitong Wang
The chemical diversity of scleractinian corals is closely related to their physiological, ecological, and evolutionary status, and can be influenced by both genetic background and environmental variables. To investigate intraspecific variation in the metabolites of these corals, the metabolomes of four species (Pocillopora meandrina, Seriatopora hystrix, Acropora formosa, and Fungia fungites) from
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Comparative mitochondrial genome analysis of Cynoglossidae (Teleost: Pleuronectiformes) and phylogenetic implications Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-06 Bilin Hu, Tingqi Jiang, Liming Wei, Nannan Zhang, Kaixin Wang, Liqin Liu, Bingjian Liu, Jing Liu, Zhenming Lü, Li Gong
Generally, a teleostean group (e.g., family or genus) owns one type or a set of similar mitochondrial gene arrangement. It is interesting, however, that four different types of gene arrangement have been found in the mitochondrial genome (mitogenome) of Cynoglossidae species. So far, the possible mechanisms of mitogenomic gene rearrangement and its potential implications have aroused widespread attention
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The effect of Typhoon Kalmaegi on the modal energy and period of internal waves near the Dongsha Islands (South China Sea) Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-05 Rongwei Zhai, Guiying Chen, Chenjing Shang, Xiaodong Shang, Youren Zheng
The influence of Typhoon Kalmaegi on internal waves near the Dongsha Islands in the northeastern South China Sea was investigated using mooring observation data. We observed, for the first time, that the phenomenon of regular variation characteristics of the 14-d spring-neap cycle of diurnal internal tides (ITs) can be regulated by typhoons. The diurnal ITs lost the regular variation characteristics
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Application and evaluation of layering shear method in LADCP data processing Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-04 Zijian Cui, Chujin Liang, Binbin Guo, Feilong Lin, Yong Mu
The current velocity observation of LADCP (Lowered Acoustic Doppler Current Profiler) has the advantages of a large vertical range of observation and high operability compared with traditional current measurement methods, and is being widely used in the field of ocean observation. Shear and inverse methods are now commonly used by the international marine community to process LADCP data and calculate
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Satellite-observed significant improvement in nearshore transparency of the Bohai Sea during pollution control Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-03-02
Abstract The Bohai Sea (BS) is the unique semi-closed inland sea of China, characterized by degraded water quality due to significant terrestrial pollution input. In order to improve its water quality, a dedicated action named “Uphill Battles for Integrated Bohai Sea Management” (UBIBSM, 2018–2020) was implemented by the Chinese government. To evaluate the action effectiveness toward water quality
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Differences in spring precipitation over southern China associated with multiyear La Niña events Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-02-29 Guangliang Li, Licheng Feng, Wei Zhuang, Fei Liu, Ronghua Zhang, Cuijuan Sui
Composite analyses were performed in this study to reveal the difference in spring precipitation over southern China during multiyear La Niña events during 1901 to 2015. It was found that there is significantly below-normal precipitation during the first boreal spring, but above-normal precipitation during the second year. The difference in spring precipitation over southern China is correlative to
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Mixed layer warming by the barrier layer in the southeastern Indian Ocean Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-02-28 Kaiyue Wang, Yisen Zhong, Meng Zhou
The southeastern Indian Ocean is characterized by the warm barrier layer (BL) underlying the cool mixed layer water in austral winter. This phenomenon lasts almost half a year and thus provides a unique positive effect on the upper mixed layer heat content through the entrainment processes at the base of the mixed layer, which has not been well evaluated due to the lack of proper method and dataset
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The morphological changes of basal channels based on multi-source remote sensing data at the Pine Island Ice Shelf Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-02-22 Xiangyu Song, Zemin Wang, Jianbin Song, Baojun Zhang, Mingliang Liu
The basal channel is a detailed morphological feature of the ice shelf caused by uneven basal melting. This kind of specifically morphology is widely distributed in polar ice shelves. It is an important research object of sea-ice interaction and plays a vital role in studying the relationship between the ice sheet/ice shelf and global warming. In this paper, high-resolution remote sensing image and
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Prediction of seawater pH by bidirectional gated recurrent neural network with attention under phase space reconstruction: case study of the coastal waters of Beihai, China Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-01-09 Chongxuan Xu, Ying Chen, Xueliang Zhao, Wenyang Song, Xiao Li
Marine life is very sensitive to changes in pH. Even slight changes can cause ecosystems to collapse. Therefore, understanding the future pH of seawater is of great significance for the protection of the marine environment. At present, the monitoring method of seawater pH has been matured. However, how to accurately predict future changes has been lacking effective solutions. Based on this, the model
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The combined effects of North Atlantic Oscillation and Western Pacific teleconnection on winter temperature in Eastern Asia during 1980–2021 Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-01-09 Ziqun Zhang, Hongyan Cui, Baoxu Chen, Hong Cai, Pin Li
As important atmospheric circulation patterns in Northern Hemisphere (NH), the North Atlantic Oscillation (NAO) and the Western Pacific teleconnection (WP) affect the winter climate in Eurasia. In order to explore the combined effects of NAO and WP on East Asian (EA) temperature, the NAO and WP indices are divided into four phases from 1980–2021: the positive NAO and WP phase (NAO+/WP+), the negative
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Forty-year investigation of wave power in energetic region of Persian Gulf in Iranian territorial waters by using short-term and new long-term stability assessment parameters Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-01-09 Fouad Salimi, Cyrus Ershadi, Vahid Chegini
The wave power in high potential area of the northern Persian Gulf (near to Iranian coastal areas) is assessed by taking into account the temporal and spatial distributions of wave power for a period of forty years. For this purpose, assimilated wind data of European Centre for Medium-Range Weather Forecasting Interim Reanalysis (ERA-Interim), and hydrography data of General Bathymetric Chat of the
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Seasonal implications for taxonomic sufficiency to simplify M-AMBI methodology in the coastal area adjacent to a eutrophic estuary Acta Oceanol. Sin. (IF 1.4) Pub Date : 2024-01-09 Chenman Yang, Hongjun Song, Yi Sun, Pengfei Xie, Yuan Liu, Hongjun Li
Taxonomic sufficiency (TS) refers to identifying taxa to a taxonomic level sufficient to detect community changes in stressed environments and may provide a cost-effective approach in routine monitoring programs. However, there is still limited information regarding the seasonal impact of applying TS and its implications for the ecological quality evaluation in the estuarine ecosystem. This study investigated
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Strip segmentation of oceanic internal waves in SAR images based on TransUNet Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-29 Kaituo Qi, Hongsheng Zhang, Jiaojiao Lu, Yinggang Zheng, Zhouhao Zhang
The development of oceanic remote sensing artificial intelligence has made possible to obtain valuable information from amounts of massive data. Oceanic internal waves play a crucial role in oceanic activity. To obtain oceanic internal wave stripes from synthetic aperture radar (SAR) images, a stripe segmentation algorithm is proposed based on the TransUNet framework, which is a combination of U-Net
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Wave hindcast under tropical cyclone conditions in the South China Sea: sensitivity to wind fields Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-28
Abstract Reliable wave information is critical for marine engineering. Numerical wave models are useful tools to obtain wave information with continuous spatiotemporal distributions. However, the accuracy of model results highly depends on the quality of wind forcing. In this study, we utilize observations from five buoys deployed in the northern South China Sea from August to September 2017. Notably
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Significant wave height forecasts integrating ensemble empirical mode decomposition with sequence-to-sequence model Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-28 Lina Wang, Yu Cao, Xilin Deng, Huitao Liu, Changming Dong
As wave height is an important parameter in marine climate measurement, its accurate prediction is crucial in ocean engineering. It also plays an important role in marine disaster early warning and ship design, etc. However, challenges in the large demand for computing resources and the improvement of accuracy are currently encountered. To resolve the above mentioned problems, sequence-to-sequence
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Cross-shelf variation of internal tides west of the Dongsha Plateau in the northern South China Sea Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-28 Wei Yang, Ruixiang Li, Yanqing Feng, Huijie Xue
We examine the cross-shelf variation of internal tides (ITs) west of the Dongsha Plateau in the northern South China Sea based on observations from 4 moorings deployed between August 2017 and September 2018. On the slope, the amplitude of diurnal baroclinic current ellipses are 5 times larger than that of barotropic currents. The baroclinic energy quickly dissipates during cross-shelf propagation,
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Morphometric analysis of the Andaman outer shelf and upper slope—Implications for the recent slope failure events Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Pachoenchoke Jintasaeranee, Anond Snidvongs
The devastating 2004 tsunamis that hit the southwestern coast of Thailand pose a serious threat to people along the coastal zone. A major aim for the tsunami hazard prediction is better prediction of the next tsunamis and their impacts. In this paper, we present the first implications of recent slope failure events of the Andaman outer shelf and upper slope based on a new detailed bathymetric data
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Molecular quantification of copepod Acartia erythraea feeding on different algae preys Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Simin Hu, Tao Li, Hui Huang, Sheng Liu
Quantitative evaluation of the copepod feeding process is critical for understanding the functioning of marine food webs, as this provides a major link between primary producers and higher trophic levels. In this study, a molecular protocol based on quantitative polymerase chain reaction (qPCR) targeting 18S rDNA was developed and used to investigate the feeding and digestion rates of the copepod Acartia
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Geological context and vents morphology in the ultramafic-hosted Tianxiu field, Carlsberg Ridge Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Jin Liang, Chunhui Tao, Xiangxin Wang, Cheng Su, Wei Gao, Yadong Zhou, Weikun Xu, Xiaohe Liu, Zhongjun Ding
The Tianxiu hydrothermal field (TXHF) located on Carlsberg Ridge is one of the few active ultramafic-hosted venting systems known in the Indian Ocean. Despite numerous investigations, there is limited understanding of its sulfide structure morphology, and the factors controlling the formation of TXHF are poorly understood. In this study, we conducted detailed seafloor mapping using visual data obtained
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Multi-proxy reconstructions of hydrological changes from continental shelf sediments in the northern South China Sea during the interval 9 200–6 200 cal a BP Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Chao Huang, Xiaoxu Qu, Lihui Wang, Yuhan Xie, Yongyi Luo, Fajin Chen, Yin Yang
Past hydroclimatic conditions in southern China are poorly constrained owing to the lack of high-resolution marine-sediment records. In this study, we present high-resolution geochemical and grain-size records of marine sediments from the coastal shelf of the northern South China Sea to investigate regional hydrological variations. Results suggest a warm and humid climate during the interval 9 200–7
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Distribution pattern of macrobenthic assemblages along a salinity gradient in the Hangzhou Bay and its adjacent waters Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Runxuan Yan, Xiaobo Wang, Songyao Peng, Qingxi Han
It is widely acknowledged that the distribution of macrobenthos is affected by salinity, but the degree of influence varies in different areas. To explore the distribution pattern of macrobenthic assemblages in the Hangzhou Bay, 12 stations were sampled to collect macrobenthos and the corresponding bottom water. Changes in the general characteristics of macrobenthos along the salinity gradient in the
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Impacts of channel dredging on hydrodynamics and sediment dynamics in the main channels of the Jiaojiang River Estuary in China Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Yanming Yao, Xueqian Chen, Jinxiong Yuan, Li Li, Weibing Guan
Channel dredging in estuaries increases water depth and subsequently impacts sediment dynamics and morphology. The Jiaojiang River Estuary is dredged frequently owing to heavy shipping demands. In this study, the effects of different dredging schemes on siltation were assessed through numerical modeling. The sediment model of the Jiaojiang River Estuary utilized an optimized bottom boundary layer model
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Regeneration and anti-migration of sand waves associated with sand mining in the Taiwan Shoal Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Jingjing Bao, Feng Cai, Chengqiang Wu, Huiquan Lu, Yongling Zheng, Yufeng Li, Li Sun, Chungeng Liu, Yongbao Li
Sand waves in the Taiwan Shoal are characterized by two distinct spatial scales. Giant sand waves have a length of 2 kilometers with height between 5 m and 25 m, whilst small sand waves is less than 100-m long with height less than 5 m between giant sand wave peaks (crests). A series of five high-resolution multi-beam echo-sounding surveys between 2012 and 2020 in the middle of Taiwan Shoal indicated
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Prokaryotic diversity and community composition in the surface sediments of the Changjiang River Estuary in summer Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Changfeng Qu, Xixi Wang, Liping Zhang, Huamao Yuan, Xuegang Li, Ning Li, Fushan Chen, Jinlai Miao
Microorganisms are fundamental for the functioning of marine ecosystems and are involved in the decomposition of organic matter, transformation of nutrients and circulation of biologically-important chemicals. Based on the complexity of the natural geographic characteristics of the Changjiang River Estuary, the geographic distribution of sedimentary microorganisms and the causes of this distribution
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The influence of bioturbation on sandy reservoirs: the delta front sand of the lower Zhujiang Formation, Baiyun Depression, Zhujiang River Mouth Basin Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Zhifeng Xing, Wei Wu, Juncheng Liu, Yongan Qi, Wei Zheng
Ichnofossils are well developed in clastic rock reservoirs in marine and transitional facies, which can considerably change the physical properties of the reservoir. However, this influence is not well understood, raising an important problem in the effective development of petroleum reservoirs. This paper analyzes continental shelf margin delta reservoirs through core observation, cast thin section
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Influence of asymmetric tidal mixing on sediment dynamics in a partially mixed estuary Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Zhongyong Yang, Zhiming Liang, Yufeng Ren, Daobin Ji, Hualong Luan, Changwen Li, Yujie Cui, Andreas Lorke
To investigate the influence of asymmetric tidal mixing (ATM) on sediment dynamics in tidal estuaries, we developed a vertically one-dimensional idealized analytical model, in which the M2 tidal flow, residual flow and suspended sediment concentration (SSC) are described. Model solutions are obtained in terms of tidally-averaged, and tidally-varying components (M2 and M4) of both hydrodynamics and
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Vertical microbial profiling of water column reveals prokaryotic communities and distribution features of Antarctic Peninsula Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-27 Jiang Li, Luying Zhao, Xiaoqian Gu, Chengxuan Li, Qian Zhang, Liping Fu, Ao Zhang
Prokaryotic diversity and community composition in the water column of eight stations (63 samples) around the Antarctic Peninsula of the Southern Ocean were investigated. Through pyrosequencing of the V3–V4 hypervariable regions of the 16S ribosomal RNA gene, we characterized 4 720 089 valid reads representing 48 188 operational taxonomic units (OTUs, 97% similarity). The community was dominated by
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Contributions of annual and semiannual tidal constituents to chart datum in the China seas and adjacent waters Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-02 Yikai Feng, Yanguang Fu, Long Yang, Dongxu Zhou
Global uniform chart datum (CD) surface construction is the basic upon which to realize various vertical datums transformation, and is of great importance for geospatial data expression under the same vertical datum. Generally, the CD level is computed by developing the function between tidal constituents’ harmonic constants and time, i.e., the lowest astronomical tide is taken as the lowest predicted
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Retraction Note: Efficient detection of pathogen virus in sand dabs, Paralichthys olivaceus using loop-mediated isothermal amplification (LAMP) Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-12-05 Jinik Hwang, So Yun Park, Sung-Suk Suh, Mirye Park, Sukchan Lee, Taek-Kyun Lee
The Editor-in-Chief has retracted this article because it contains material that substantially overlaps with the following article [1]. Furthermore, the same picture from the Acta Oceanologica Sinica (Received 11 August 2015) has been included in the journal Asian Pacific Journal of Tropical Medicines (Received 15 Dec 2015). Therefore the Editor-in-Chief has lost confidence in the work presented in
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Erratum to: Cenozoic giant coal-bearing basin belt discovered in China’s sea area Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-11-23 Gongcheng Zhang, Ying Chen, Dongdong Wang, Zengxue Li
The original online version of this article was revised: (1) Article title was changed to “Cenozoic giant coal-bearing basin belt discovered in China’s sea and its adjacent areas”; (2) title of Fig. 2 “Coal seam distribution and coal-forming sedimentary facies in China’s sea. ①: Xuhu Delta” was changed to “Coal seam distribution and coal-forming sedimentary facies in China’s sea and its adjacent areas
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Technical development of operational in-situ marine monitoring and research on its key generic technologies in China Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-11-03 Yunzhou Li, Juncheng Wang
In China, operational in-situ marine monitoring is the primary means of directly obtaining hydrological, meteorological, and oceanographic environmental parameters across sea areas, and it is essential for applications such as forecast of marine environment, prevention and mitigation of disaster, exploitation of marine resources, marine environmental protection, and management of transportation safety
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Dietary nutrient status modulates nutrient regeneration in the marine ciliate Euplotes vannus Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-11-01
Abstract Marine ciliates play important roles not only in linking the microbial loop to the classic pelagic and benthic food chains but also in regenerating nutrients, yet how dietary nutrient imbalance impacts their nutrient regeneration has not been thoroughly addressed. The growth and physiological responses of Euplotes vannus to low dietary nitrogen (LN) and low dietary phosphorus (LP) conditions
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Record of hydrothermal activity in the Yuhuang hydrothermal field and its implications for the Southwest Indian Ridge: evidence from sulfide chronology Acta Oceanol. Sin. (IF 1.4) Pub Date : 2023-11-01
Abstract The Yuhuang hydrothermal field (YHF) is located between the Indomed and Gallieni fracture zones near the top of the off-axis slope on the south rift wall of Segment 29 on the ultraslow Southwest Indian Ridge (SWIR). Previous studies have shown that sulfides in the YHF formed during different mineralization episodes and the YHF has the greatest potential for the formation of large-scale seafloor