从俄罗斯历史看今日俄海军     

施征 《海洋世界》2008,(2):12-19

俄罗斯是个海岸线漫长的大陆国家。在俄罗斯历史上的每个阶段，海军都曾扮演过极为重要的角色。自从1696年俄罗斯正式组建正规海军以来，在长达300多年的发展历程中，随着不同时期国际与国内形势的变化和国家利益的需要，俄罗斯海军战略经历了数次巨大的变化。从18世纪排名世界第三强的沙俄海军，到19世纪中叶以来异军突起的前苏联“超级大国海军”，再到今日重竖旧帜，企图东山再起的俄罗斯海军，其总体战略也伴随着时代的变迁而变化，从近海防御发展到远海防御乃至远洋扩张，又从远洋扩张转向全面回缩，以近海防御为主，但同时具备远洋作战能力。可以说，上述战略思想的调整与变化是引导海军发展至今的主要因素；因此，在追溯历史、展望未来的今天，首先值得回味俄罗斯海军战略的演变历史。  相似文献   

影响青岛的热带气旋特征分析     

张晓慧  孟昭旭  郭盛蓉 《海洋预报》2008,25(4)

本文对1949～2007年共59年影响青岛的热带气旋统计特征进行了分析.结果表明,影响青岛的热带气旋移动路径主要有5种类型,其生成源地与移动路径有一定的关系.影响时间主要集中在7月下旬至9月上旬;各月影响的主要路径及平均强度不同,影响时青岛出现6～7级的风力及偏北、南南东的风向频率较高,沿岸有时会伴有强的风暴潮.  相似文献   

Detection of nighttime sea fog/stratus over the Huanghai Sea using MTSAT-1R IR data   总被引：2，自引：0，他引：2  

GAO Shanhong  WU Wei  ZHU Leilei  FU Gang  HUANG Bin 《海洋学报(英文版)》2009,28(2):23-35

A dual channel difference (DCD) method is applied to detect nighttime sea fog/stratus over the Huanghai Sea using the infrared (IR) data of shortwave (3.5–4.0 μm) and longwave (10.3–11.3 μm) channels from the Multi-functional Transport Satellite (MTSAT)-1R, i.e., shortwave minus longwave brightness temperature difference (SLTD). Twenty-four sea fog events over the Huanghai Sea during March to July of 2006 and 2007 are chosen to determine a suitable value of SLTD for nighttime sea fog/stratus detection, and ...  相似文献   

我国大陆海域首次发现柯氏喙鲸物种     

《海洋世界》2008,(12):6-6

日前，经鲸类研究专家鉴定确认，在江苏近海海域发现的鲸是首次在我国大陆海域发现柯氏喙鲸。今年10月10日，江苏连云港籍一艘渔船在作业时，一头鲸被渔网意外缠住，发现时已经死亡，后被拖运回连云港赣榆柘汪码头。连云港海洋博物馆获知信息后派出有关专家对这头鲸的实体进行了初步鉴定，  相似文献   

A Lagrangian mean theory on coastal sea circulation with inter-tidal transports Ⅱ. Numerical Experiments     

JU Lian  JIANG Wensheng  FENG Shizuo 《海洋学报(英文版)》2009,28(1):1-14

The results of the new concept of coastal sea circulation are demonstrated by numerical simulations for the first time. The numerical experiments in three types of rectangular model seas illustrate the dependence of circulation on tidal phases due to the convectively nonlinear effect which is estimated by a newly defined drift dispersion in-dex. Then, the present theory is applied in the Bohai Sea of China. At the Bohai Straits and the Huanghe River mouth area the circulation direction even reverses owing to different initial tidal phases which shows that the the-ory copes with nonlinearity well. The calculated M2 tide-induced residual circulation shows that a clockwise gyre exists in the center of an anticlockwise gyre in the central Bohai Sea due to the topographic features. In the Bo-hai Gulf the tide induced circulation shows a 3D structure with outflow at the surface and the inflow at the bottom which can partly explains the spread of the Huanghe River fresh water out of the Bohai Gulf and the inflow of the sediment from the Huanghe River.  相似文献   

两岸重磅级学者画"地"为桥——2009海峡两岸土地学术研讨会综述     

彭小云 《国土资源导刊(湖南)》2009,6(9):14-15

“两岸研讨会最大的好处是交流思想，”操着一口东北口音的台湾逢甲大学土地管理学系教授韩乾举了个例子，“你有一个思想，我有一个思想，我跟你交流了，我就有两个思想。”而在山东青岛经商的台湾立明集团董事、高级顾问黄炳南认为，这次参会最大的收获是结识了不少大陆朋友。  相似文献   

Characterization of marine microplankton communities of Qingdao coastal areas using randomly amplified polymorphic DNA（RAPD）   总被引：1，自引：1，他引：0  

GAO Shan  HU Xiaozhong  CHEN Zigui  XU Henglong  YI Zhenzhen  LIN Xiaofeng  LIJiqiu 《海洋学报(英文版)》2009,28(1)

Microplankton communities of three coastal sites of Qingdao, Shandong Province, China were investigated using RAPD (random amplified polymorphic DNA) molecular markers and morphological observations. Eight RAPD-primers were selected to amplify the DNA polymorphy. The genetic distances inferred from the pairwise similari-ties were calculated for the phylogenetic tree construction. Meantime, the traditional microscopic determination, a way of visualizing the species composition, was performed to detect the major taxa of microplanktons from all samples. Results showed that: (1) the band sharing index values were in the range of 0. 504 2-0. 763 2 among samples from the same sampling site at different time scales, while 0.406 5-0.685 7 among the samples from different stations at the same time scales, indicating that spatial variations of microplankton communities were more pronounced than temporal ones; (2) samples from the same station basically clustered together, cor-responding to the geographic distribution of the sampling sites; (3) diversity derived from genetic and morpho-logical data did not correspond with each other well.  相似文献   

福建东山岛附近海域造礁石珊瑚共生藻的分子系统分类和遗传多样性研究     

董志军  黄晖  黄良民  李元超  周国伟 《台湾海峡》2008,27(2):135-140

本研究利用核糖体大亚基5'端序列PCR-RFLP以及转录单元内间隔区(Internal TranlsclqIbed Sppacer,rrS)序列分析相结合的方法,首次对福建东山岛附近海域3种优势种类造礁石珊瑚共生藻进行了分子系统分类和遗传多样性研究.PCR-RFLP分析发现东山岛附近海域3种优势种类造礁石珊瑚共生藻都属于C系群共生藻,而ITS序列的序列分析结果表明东山岛附近海域3种优势种类造礁石珊瑚共生藻都属于C1亚系群.研究结果表明ITS序列进化速度快,适合于造礁石珊瑚共生藻属亚系群水平的鉴定.而东山岛附近海域造礁石珊瑚共生藻的多样性低,暗示东山岛附近海域造礁石珊瑚共生藻共生系统面对外界环境压力的适应能力较低.  相似文献   

新物种再次“亮相”     

《海洋世界》2008,(12):8-8

全球海洋生物普查（C0ML）又取得了新进展，许多新物种纷纷“亮相”。其中一种龙虾的外貌十分独特：它的一只螯生长得非常夸张，其作用可能是与“敌人”发生冲突时自我保护。还有一种生活在美国阿拉斯加州阿留申群岛附近的褐藻Aureophyous aleutious，它是人类首次在靠近海岸的浅水水域发现的褐藻。  相似文献   

Taxonomic Studies on a New Marine Ciliate, Apocoleps magnus gen. nov., spec. nov. （Ciliophora, Colepidae）, Isolated from Qingdao, China     

Alan Warren 《中国海洋大学学报(英文版)》2009,8(4):317-321

The morphology and infraciliature of a new marine colepid ciliate, Apocoleps magnus gen. nov., spec. nov., are described based on living observations and silver impregnations. The new genus Apocoleps is characterized by having 8 (vs. 6 in most other related genera) armour tiers, spines at both ends of the cell, 3 adoral organelles and plates with 4 reniform uni-windows. Apocoleps magnus spec. nov. is defined by the following features: body elongated and slightly curved, about 100–120μm× 35–45 μm in vivo; an...  相似文献