南海大气低层风场的气候特征分析     

黄志兴  刘嘉玲 《热带海洋学报》1995,(4)

分析１９８０－１９８７年欧洲中长期预报中心（ＥＣＭＷＦ）每日风场、温度场格点资料及同期南海区域测站和船舶资料，讨论南海低层风场的气候特征。南海为典型的季风活动区，冬季盛行东北季风，夏季盛行西南季风。流场的季节转换表现为季风系统的交替，相应不同的季风系统，南北温度梯度有一逆转过程，南海北部是温度梯度大且发生明显逆转的海区。１２°Ｎ以南海区气温全年变化极小，整个海区大气温度的季节变化不如流场变化快和显著。  相似文献   

鳗鲡气单胞菌引起的烂尾病病原菌抑菌药物的研究   总被引：5，自引：0，他引：5  

樊海平  陈茂辉 《海洋湖沼通报》1995,(4):61-65

应用药敏纸片法研究了三株烂尾病病原菌（气单胞菌）对３１种药物及不同配合药物的敏感性，测定了４种药物及配合药物ＨＰ对三株菌的最低抑菌浓度（ＭＩＣ）及最低杀菌浓度（ＭＢＣ）。结果表明，配合药物ＨＰ具较强的抑菌能力。  相似文献   

Numerical simulation of non-gaussian process of wind waves     

Liu Xin''an  Huang Peiji 《海洋学报(英文版)》1991,10(2):199-216

In this paper further mathematical analysis on "correlation transfer technique" by Polge el al. is carried out, the tenable conditions and the extent of suitability for the said method are proved as well. In consideration of the influence of skewness of the sea surface elevation on spectral shape, a "quasi-correlation transfer techique" is developed by the modification of the simulated target spectrum. Meanwhile, the numerical simulation of the non-Gaussian process of wind waves is carried out in view of the two conditions of the surface elevation probability distribution and the spectrum. By using its simulated results, the influence of skewness of the sea surface elevation on two parameters in the distribution of wave heights (which had been fitted by using the Weibull distribution) is analysed. The "quasi- correlation tranfer technique" is verified and compared with the selection wave data observed in the Jiaozhou Bay in the period of 1980 to 1981. Results make clear (hat, as far as the statistical d  相似文献   

近海污损生物的调查方法     

严文侠  董钰  王华接  严岩  严涛  梁冠和 《热带海洋学报》1994,(4)

近海海区污损生物调查有浮标挂板法和海上设施（浮标及其锚碇系统，Ｍａｒｅｘ水文浮标，移动式钻井平台和固定式生产平台）采样法。由于近海海区污损生物调查工作的特殊性和艰难性，笔者提出了利用已有的海上设施，尤其是固定式平台来积累近海污损生物资料，以便进行生态学研究。  相似文献   

An Electronic Chart Display and Information System     

Xiaoxia Wan  Chaohua Gan  Chun Huang 《Marine Geodesy》2005,28(2):175-189

This article introduces the most advanced form of electronic chart display and information systems (ECDIS) which complies with the performance standards for ECDIS established by the International Maritime Organization (IMO) and International Hydrographic Organization (IHO). It also describes the key features and the important functions of ECDIS, which we developed. This system is different from the productions developed by C-map, Seven-cs, offshore, and others. It is more suitable for China Marine Safety Administration Bureau to manage the navigation marks real-time. Using this system charts were located and accessed rapidly, and displayed smoothly. This article also discusses in ECDIS application system how to dynamically access and desert charts data in a limited memory (limited computer memory and resource). We constructed a tridimensional structure to manage a large amount of charts data. Vertically, according to the scale range, all charts were divided into eight levels, and a data structure called as “Multiple Scale Quad-tree” was constructed. And horizontally, a grid (every unit has a fixed size) was given to a certain scale level. We call this data structure a “Regular Page.” We explore the implementation of such a structure on the worldwide charts management utilizing quad-trees. Then we discuss the future development of ECDIS and its application system in marine agencies in China.  相似文献   

氮浓度对四株海洋绿藻总脂含量和脂肪酸组成的影响   总被引：6，自引：0，他引：6  

曹春晖  孙世春  麦康森  梁英 《海洋湖沼通报》2006,(3):79-84

本文用NaNO3作为氮源,分别作了氮浓度的五个水平对2属(小球藻属、裂丝藻属)的四株绿藻的生长率、总脂含量及主要脂肪酸组成的影响。C19、C97和C102的脂肪含量随N浓度的改变而有较大变化,其中C102在1.6m mol/L时脂肪含量达到最大值(24.8%)。C95的脂肪含量随氮浓度变化不大。同时,由氮浓度引起的平均生长率μ与总脂含量之间无明显相关关系。四株绿藻的EPA(20∶5n-3)和PUFAs(polyunsaturated fatty acids)含量随培养基中氮浓度的改变有较大变化但因种而异。C95和C97均在中等氮浓度时EPA含量达到最大值,分别为23.8%和27.4%。C19和C102在高氮浓度(40mmol/L)获得EPA的最大值,分别为25.7%和26.6%。  相似文献   

能量分析在台风短期预报业务中的应用     

王风范  耿敏 《海洋预报》1995,12(2):61-66

本文以９４１４、９４１５号两个连续北上台风为例，证明能量场的分布与台风移向有着明显的对应关系。  相似文献   

福建沿海沉积物中硫化物的分布   总被引：4，自引：0，他引：4  

蔡清海  吴善  黄毅坚 《热带海洋学报》1995,(2)

测定了福建沿海１７９个表层沉积物样品中硫化物的含量，潮间带含量范围为２．５０—１５２．０３ｍｇ·ｋｇ－１，浅海含量范围为２．５０—２９１．９７ｍｇ·ｋｇ－１。  相似文献   

罗源湾水母类的生态研究     

黄加祺  许振祖 《热带海洋学报》1993,(1)

样品于1986年11月至1987年10月在福建省罗源湾10个站位采集。经鉴定有52种水母。它们可分为沿岸暖水、沿岸暖温和大洋广布三种生态类群。水母类总数量和种类数的季节分布呈单周期,两者高峰均出现在7月。低谷分别出现于11月和1月。在平面分布上,以拟细浅室水母Lensia subtiloides占优势的月份,数量从湾口向湾顶递减,而以球型侧腕水母Pleurobrachia globosa占优势的月份,数量却递增。文中还讨论了水母类的分布和环境因素的关系。  相似文献   

外生铀矿成矿系统研究与古水动力分析     

马亮  王萍 《国外铀金地质》2008,(1):19-23

分析了砂岩型铀矿的国内外研究现状和发展趋势,尝试从成矿系统演化论的角度提出新的研究思路：即,以系统观为指导,以物质迁移的动力学为主线,从区域地质背景演化,特别是构造动力演化、岩相古地理等方面入手,恢复矿前期、成矿期、矿后期的区域古地形格局。运用融入了地下水流动系统理论的古水文地质分析方法,重建区域演化进程中各地质时期的古流场。着重从区域尺度上研究矿质的源-迁移-汇（成矿）-保存的动力学过程。  相似文献