Study on detection of coastal water environment of China by ocean color remote sensing

ＳＡＴＥＬＬＩＴＥＰＲＯＧＲＡＭＳＦＯＲＣＯＡＳＴＡＬＷＡＴＥＲＤＥＴＥＣＴＩＯＮＳｉｎｃｅｔｈｅ 1 980ｓ,ｇｒｅａｔａｔｔｅｎｔｉｏｎｈａｓｂｅｅｎｐａｉｄｔｏｔｈｅａｄｖａｎｃｅｄｒｅｍｏｔｅｓｅｎｓｉｎｇｔｅｃｈｎｉｑｕｅｉｎＣｈｉｎａ ,ｅｓｐｅｃｉａｌｌｙｔｏｔｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｓａｔｅｌｌｉｔｅｐｒｏｇｒａｍｓｆｏｒｃｏａｓｔａｌｗａｔｅｒｅｎｖｉｒｏｎｍｅｎｔ.Ｔｗｏｏｃｅａｎｃｏｌｏｒｃｈａｎｎｅｌｓａｄｄｅｄｔｏｔｈｅｆｉｒｓｔｒｅｍｏｔｅｓｅｎｓｉｎｇｓａｔｅｌｌｉｔ…     

TTO－LEGI区水体积输运估值

依据ＴＴＯ（ＴｒａｎｓｉｅｎｔＴｒａｃｅｒｓｉｎｔｈｅＯｃｅａｎｓ）现场观测资料，对ＴＴＯ－ＬＥＧＩ区水团分布及水体积输运量做了客观分析，使用过方法给出了较合理的、定量的水体积输运量估值．计算表明在ＴＴＯ－ＬＥＧＩ区上水层存在向极地的水体积输运，下水层存在向赤道的水体积输运。     

Numerical simulation of the upper ocean currents in South China Sea

ＮｕｍｅｒｉｃａｌｓｉｍｕｌａｔｉｏｎｏｆｔｈｅｕｐｐｅｒｏｃｅａｎｃｕｒｒｅｎｔｓｉｎＳｏｕｔｈＣｈｉｎａＳｅａ￥ＬｉＲｏｎｇｆｅｎｇ；ＨｕａｎｇＱｉｚｈｏｕａｎｄＷａｎｇＷｅｎｚｈｉ（ＩｎｓｔｉｔｕｔｅｏｆＡｔｍｏｓｐｈｅｒｉｃＰｈｙｓｉｃｓ，Ｃ...     

EDITORIAL COMMITTEE

ＥＤＩＴＯＲＩＡＬＣＯＭＭＩＴＴＥＥ￥／／ＡｄｖｉｓｅｒｓＣｈｅｎ￣ｎ（ＣｈｅｎＫ￣ｃｈｅｎｒｅＭ￥）ＴａＤＳｈｉｐｏｎ（Ｎ＃ｇ）ｆｂｉＡｎｂｏｎｓ（ｔ￥＃）ｗａｎｇ￣ｏ（ｗａｎｇＴｅ－ｃｉａＥ￥Ｂ）ＬｉｎＢｉｄｄｅｎ（ＬｉｎＰｉｎｇ－ｎａｍ＃＊Ｗ）...     

Entropy of sea wave height field and its annual variation in Northwest Pacific Ocean

ＥｎｔｒｏｐｙｏｆｓｅａｗａｖｅｈｅｉｇｈｔｆｉｅｌｄａｎｄｉｔｓａｎｎｕａｌｖａｒｉａｔｉｏｎｉｎＮｏｒｔｈｗｅｓｔＰａｃｉｆｉｃＯｃｅａｎＳｕｎＦｕａｎｄＧｕｏＰｅｉｆａｎｇ（ＲｅｃｅｉｖｅｄＯｃｔｏｂｅｒ６，１９９５；ａｃｃｅｐｔｅｄＯｃｔｏｂ...     

APPENDLX AInertial stability analysis GOVERNING EQUATIONS AND ANALYTICAL SOLUTION

ＡＰＰＥＮＤＬＸＡＩｎｅｒｔｉａｌｓｔａｂｉｌｉｔｙａｎａｌｙｓｉｓＧＯＶＥＲＮＩＮＧＥＱＵＡＴＩＯＮＳＡＮＤＡＮＡＬＹＴＩＣＡＬＳＯＬＵＴＩＯＮＴｏｆｏｃｕｓｏｎｆｉｎｉｔｅｄｉｆｆｅｒｅｎｃｅｓｃｈｅｍｅｓｏｆｔｈｅＣｏｒｉｏｌｉｓｔｅｒｍｓ，ｗ...     

ACTA OCEANOLOGICA SINICA

ＡＣＴＡＯＣＥＡＮＯＬＯＧＩＣＡＳＩＮＩＣＡ￥／／ＥｄｉｔｅｄｂｙｔｈｅＣｈｉｎｅｓｅＳｏｃｉｅｔｙｏｆＯｃｅａｎｏｇｒａｐｈｙＡｃｔａＯｃｅａｎｏｌｏｇｉｃａＳｉｎｉｃａｉｓａｃｏｍｐｒｅｈｅｎｓｉｖｅａｃａｄｅｍｉｃｊｏＵｒｎａｌｅｄｉｆｅｄｂｙ...     

Transgressions of Late Cretaceous to Early Tertiary in Eastern China

ＴＲＡＮＳＧＲＥＳＳＩＯＮＳＯＦＬＡＴＥＣＲＥＴＡＣＥＯＵＳＴＯＥＡＲＬＹＴＥＲＴＩＡＲＹＩＮＥＡＳＴＥＲＮＣＨＩＮＡＱｉｕＳｏｎｇｙｕ，ＬｕＢｉｎｇｌｉ，ＣｈｅｎＹｏｎｇｃｈｅｎｇ（ＪｉｌｉｎＨｅａｄｑｕａｒｔｅｒｓＯｆＰｅｔｒｏｌｅｕｍＰｒｏｓｐ...     

Study on sea water pollution mechanism of Xiuying Bathing Beach in Haikou

ＳｔｕｄｙｏｎｓｅａｗａｔｅｒｐｏｌｌｕｔｉｏｎｍｅｃｈａｎｉｓｍｏｆＸｉｕｙｉｎｇＢａｔｈｉｎｇＢｅａｃｈｉｎＨａｉｋｏｕ￥ＣｈｅｎＣｈｕｎｈｕａ；ＷａｎｇＬｕａｎｄＷａｎｇＤａｏｒｕ（ＯｃｅａｎＥｘｐｌｏｉｔａｔｉｏｎＰｌａｎｎｉｎｇａｎｄＤｅｓ...     

Numerical studies of upwelling in coastalareas of the East China Sea——Ⅰ The tide-induced upwelling

ＮｕｍｅｒｉｃａｌｓｔｕｄｉｅｓｏｆｕｐｗｅｌｌｉｎｇｉｎｃｏａｓｔａｌａｒｅａｓｏｆｔｈｅＥａｓｔＣｈｉｎａＳｅａ－ⅠＴｈｅｔｉｄｅ－ｉｎｄｕｃｅｄｕｐｗｅｌｌｉｎｇＬｕｏＹｉｙｏｎｇ,ＹｕＧｕａｎｇｙａｏ,ＨｕａｎｇＺｕｋｅ（ＲｅｃｅｉｖｅｄＯｃ...     

海上大直径钢管桩打桩过程中桩周土强度弱化研究

海上大直径钢管桩打桩过程中,桩周土体受到强烈扰动而发生强度弱化,掌握桩周土体强度弱化规律对于准确预测打桩过程、保证工程安全具有重要意义。为研究土体强度弱化规律,开展了环剪试验模拟打桩对桩周土体的扰动,测试土体强度随剪切速率的变化规律,建立了描述土体强度弱化规律的拟合公式,引入到打桩分析软件中。研究结果表明：土体的强度折减程度不仅与土体本身的性质有关还受到土体的埋深和剪切速率的影响,埋深越深土体强度折减程度越低,剪切速率越高土体强度折减越高,在打桩分析中可采用这里推荐的线性折减方法来模拟不同深度处土体强度的折减规律。     

Phylogenetic diversity and phenotypic characterization of cultivable bacterioplankton isolated from polar oceans

A set of 27 marine planktonic bacteria isolated from the polar regions was characterized by 16S rDNA sequencing and physiological and biochemical testing. More than half of these bacteria were positive for caseinase, gelatinase and 13-glucosidase, and could utilize glucose, maltose or malic acid as carbon source for cell growth. Twelve isolates expressed nitrate reduction activities. Except for one antarctic isolate BSwlO175 belonging to Actinobacteria phylum, these isolates were classified as γ-Proteobacteria, suggesting that γ-Proteobacteria dominated in cultivable marine bacterioplankton at both poles. Genus Pseudoalteromonas was the predominant group in the Chukchi Sea and the Bering Sea, and genus ShewaneUa dominated in cultivable bacterioplankton in the Prydz Bay. With sequence similarities above 97%, genus Psychrobacter was found at both poles. These 27 isolates were psychrotolerant, and significant 16S rDNA sequence similarities were found not only between arctic and antarctic marine bacteria （ 〉 99% ）, but also between polar marine bacteria and bacteria from other aquatic environments （ ≥ 98.8% ）, including temperate ocean, deep sea, pond and lake, suggesting that in the polar oceans less temperature-sensitive bacteria may be cosmopolitan and have a bipolar, even global, distribution at the species level.     

Estimation of Sediment Properties during Benthic Impact Experiments

Sediment properties, such as water content and density, have been used to estimate the dry and wet weights, as well as the volume of sediment recovered and discharged, during benthic impact experiments conducted in the Pacific and Indian Oceans. The estimates show that the weights of dry (355-1332 t) and wet sediment (1651-4888 t) recovered during the experiments, are not only a function of the total duration and distance covered during the experiment, but also depend on water content and density of the sediment. Estimation of dry sediment and its volumetric ratio in the discharge, are key parameters for calculating the discharged volume. The estimated volume of wet sediment recovered (1427-4049 m 3 ) as well as discharged (2693-6951 m 3 ) during the experiments, provide important inputs to evaluate the sediment resettlement and migration. Using these estimates, the average depth of excavation on the seafloor, can also been calculated. However, the stages of sediment recovery and discharge are expressed differently in some of the experiments. In order to standardize these, different stages have been identified, and definitions of certain terms have been suggested, for use in the future. The methods of calculating different properties, as well as weight and volume of discharged sediment are described in the paper for use in other applications concerning deep-sea discharges.     

A Tidal Flow Model for the Gulf of Kachchh, India

A vertically integrated model has been used to study the tidal circulation and currents in the Gulf of Kachchh along the west coast of India. The model is fully nonlinear and uses a semiexplicit finite difference scheme to solve the basic hydrodynamic equations on a staggered grid. The model is forced by prescribing the tides along the open boundary of the model domain. The flow is simulated both with and without the presence of the proposed tidal barrage across the Hansthal Creek in the Gulf of Kachchh. The results show a considerable change in the behavior of the tidal flow in the presence of the barrage.     

利用中国GF-3卫星SAR和HY-2A卫星微波散射计的首次台风联合定量观测

<正>The typhoon,as a mature tropical cyclone that develops in the western part of the North Pacific Ocean with high wind speed and heavy rainfall,is one of the most lethal and costly of natural disasters for the densely populated countries of East Asia.It can be easily detected by space-borne sensors operated at microwave,visible or infrared bands(Liu et al.,2014).Synthetic Aperture Radar(SAR)is     

离子交换—原子吸收光谱法测定海水中痕量铜、铅、锌、镉、铁、锰

本文介绍了用国产D401型螯合树脂分离富集海水中铜、铅、锌、镉、铁、锰等痕量元素,并用原子吸收光谱仪测定其含量的方法。讨论了各元素的分离条件选择及干扰元素的影响,并与溶剂萃取法的结果作了比较。各元素检测的定量下限为:铜0.5μg/L、铅0.1μg/L、锌1.0μg/L、镉0.01μg/L、铁2.0μg/L、锰2.0μg/L。方法精密度在4—8％之间,回收率为90—102％。     

Biogeochemistry of Mangrove Soil Organic Matter: a Comparison BetweenRhizophoraandAvicenniaSoils in South-eastern Brazil

Soil core samples fromRhizophora mangleL. andAvicennia schauerianaStapf & Leech forests from south-eastern Brazil were analysed for their total organic matter content and their sugars, amino acid and amino sugars composition. Organic carbon and nitrogen contents were higher inAvicenniathan inRhizophorasoils. The contribution of sugars and amino acids to the total organic carbon pool was constant with depth inRhizophorasoils whereas inAvicenniasoils it increased. Spectral distribution of sugars and amino acids showed a dominance of Ca-affine monomers, particularly acidic amino acids, and the sugar arabinose. Biogeochemical indicators derived from ratios of individual sugar and amino acid monomers confirm previous studies which showed that organic matter in both soils is mainly of mangrove origin. The results further suggest accumulation of organic matter inRhizophorasoils and a continuing degradation of organic matter inAvicenniasoils. The latter may thus release more nutrients to adjacent ecosystems thanRhizophorasoils.     

A review of orange roughy Hoplostethus atlanticus fisheries,estimation methods,biology and stock structure

Orange roughy Hoplostethus atlanticus are unusual fish. They form dense aggregations that have fuelled lucrative fisheries at great depths (600–1 400 m), especially off Namibia, New Zealand and Australia. They are thought to be very long-lived (>100 years, maturity at 22 – 40 years), and to have exceptionally low natural mortality (M = 0.045–0.064 year^?1) and slow growth rates (K = 0.055–0.070 year^?1). In addition, they spawn large eggs and have low fecundity. These factors combine to make orange roughy highly susceptible to overfishing; most stocks are below 30% of pristine levels. Assessments are obtained from indices of catch rate and trawl, acoustic and egg surveys. Acoustic estimates are the most direct, but are confounded by the species' low target strength (?50 to ?53 dB)–attributable to the wax-filled swim bladder. Extracellular wax esters are stored in abundance and comprise mostly mono-unsaturated fatty acids, with low concentrations of the ω-3 fatty acid family. This unusual composition (resultant from the species' diet) ensures neutral buoyancy. Stock separation has been inferred mainly from biological studies, but genetic studies have also found differences among stocks within New Zealand and Australia. Deep-water habitat may be damaged by trawling operations and may take many years to recover, so in some quarters there is a call for a portion of suitable habitat to be set aside for preservation. Although Namibian orange roughy are shallower, smaller and younger than those in other stocks, the Namibian fishery sustained high catches for only a few years before quotas were reduced, from 12 000 to 1 875 tons. Three management lessons are suggested for developing orange roughy fisheries based on the Namibian experience: (1) imposition of catch limits during exploratory fishing; (2) starting the acoustic surveys earlier in the fishery, if possible; (3) greater reliance on trends in catch rate until a survey series has been established.