浅海内波垂直模式方程的一种解析解     

胡涛  高天赋 《海洋学报》2007,29(4):148-151

给出了一些海区实测浮力频率剖面的数学模型.利用超几何函数对内波垂直模式方程进行了解析求解,得到内波模式方程的解析解和频散方程.利用得到的解析解给出了一种理想条件下内波前三阶简正模式的结构.  相似文献   

Scientific tools to support the practical implementation of ecosystem-based fisheries management   总被引：5，自引：1，他引：5  

Smith  A. D. M.; Fulton  E. J.; Hobday  A. J.; Smith  D. C.; Shoulder  P. 《ICES Journal of Marine Science》2007,64(4):633-639

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把海洋开发作为跨世纪的国家战略          下载免费PDF全文

杨金森 《海洋开发与管理》1995,12(1):6-11

２１世纪将是全面开发利用海洋的时代，许多沿海国家将把海洋开发作为国家战略。我国是世界上人口最多的国家，陆地资源人均占有量少，更应该重视开发海洋，建设临海工业带，发展海洋农牧化，开发建设海运网络等。发展海洋经济必须走科技兴海之路，抓科技储备，改造传统产业，发展新兴产业，不断提高海洋开发生产力水平。  相似文献   

三次样条插值在浮性频率计算中的应用     

蔡树群  甘子钧  仇德忠 《热带海洋学报》1997,(3)

在普遍利用海洋观测站标准层的温度、盐度数据估算稳定层化海水浮性频率的传统算法中引入自然三次样条插植方法，不仅可使计算结果的精度得以提高，而且还可方便地对观测深度范围内的任一水层进行插值，从而获得总体曲率最小的温度、盐度和浮性频率随深度的分布。本文以南海（13°30’N，118°30’E；9°30’N，lll°30’E）及北太平洋（40°00’N130°00’W）3个测站为例，说明了在浮性频率的传统算法中引入自然三次样条插值法的可行性。  相似文献   

Bowen数和东中国海Bowen数分布     

张淮水  汪园祥  楼顺里 《中国海洋大学学报(自然科学版)》1988,(3)

本文讨论Bowen数的意义、功能和计算法。同时,依据多年水文气象实测资料作统计,计算出东中国海的Bo值。其结果绘制成1月至12月的月平均分布图,从而对本海域的Bo分布特点作详细分析介绍。  相似文献   

西部大开发与中国经济发展     

赵建军 《海岸工程》2002,21(2):45-52

在对中国西部的区域划分进行界定并阐述中国西部区域特征的基础上,对中国西部的开发进行了历史回顾,并对中国西部开发的历史背景和现实基础、中国西部开发的优势和制约条件进行分析,最后提出了中国西部开发的发展战略和政策措施.  相似文献   

厦门海洋生物入侵的危害及管理对策   总被引：4，自引：1，他引：4  

郑冬梅 《台湾海峡》2005,24(3):411-416

本文系统地分析了厦门海洋生物入侵的成因、现状、危害及治理方法,认为互花米草和海洋动物沙筛贝是主要的入侵物种,其严重的生态、经济和社会危害不可低估.同时明确防止海洋生物入侵的总体目标,进而提出强化管理的系列对策.  相似文献   

Validating management simulation models and implications for communicating results to stakeholders     

Pastoors  Martin A.; Poos  Jan Jaap; Kraak  Sarah B. M.; Machiels  Marcel A. M. 《ICES Journal of Marine Science》2007,64(4):818-824

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Disciplinary System and Development Strategy for Eco-hydrology   总被引：1，自引：0，他引：1  

Jun Xia  Qiting Zuo  Chunhui Han 《地球科学进展》2018,33(7):665-674

Eco-hydrology is a new discipline developed in recent decades. It is of great significance to accelerate and promote the development of eco-hydrology subject by constructing a perfect discipline system and formulating future development strategies. By reviewing a large number of literatures, this paper systematically combed and expounded the development and evolution of the eco-hydrology, which can be divided into five stages, the embryonic period of eco-hydrology (1970-1986), formulation terminology and the initial exploration period of eco-hydrology (1987-1991), discipline establishment and the initial development period of eco-hydrology (1992-1995), the rapid development period of eco-hydrology (1996-2007) and the improvement period of eco-hydrology (2008-present). Based on the analysis of the development of eco-hydrology, the disciplinary system of eco-hydrology was proposed as a framework of “theory-method-practice-branch discipline”. Finally, combined with the authors’ understanding, this paper put forward the development strategy system of the eco-hydrology, including the disciplinary research plan, the key research project, the country’s major demand, the discipline construction and the international cooperation, which will provide support for the promotion and establishment of a sound disciplinary system of eco-hydrology.  相似文献   

Centrifuge modelling of landslides and landslide hazard mitigation: A review     

《地学前缘(英文版)》2023,14(1):101493

Landslides are serious geohazards that occur under a variety of climatic conditions and can cause many casualties and significant economic losses. Centrifuge modelling, as a representative type of physical modelling, provides a realistic simulation of the stress level in a small-scale model and has been applied over the last 50 years to develop a better understanding of landslides. With recent developments in this technology, the application of centrifuge modelling in landslide science has significantly increased. Here, we present an overview of physical models that can capture landslide processes during centrifuge modelling. This review focuses on (i) the experimental principles and considerations, (ii) landslide models subjected to various triggering factors, including centrifugal acceleration, rainfall, earthquakes, water level changes, thawing permafrost, excavation, external loading and miscellaneous conditions, and (iii) different methods for mitigating landslides modelled in centrifuge, such as the application of nails, piles, geotextiles, vegetation, etc. The behaviors of all the centrifuge models are discussed, with emphasis on the deformation and failure mechanisms and experimental techniques. Based on this review, we provide a best-practice methodology for preparing a centrifuge landslide test and propose further efforts in terms of the seven aspects of model materials, testing design and equipment, measurement methods, scaling laws, full-scale test applications, landslide early warning, and 3D modelling to better understand the complex behaviour of landslides.  相似文献