|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Numerical study and prediction of nuclear contaminant transport from Fukushima Daiichi nuclear power plant in the North Pacific Ocean显示文摘On March 11,2011,a large earthquake and subsequent tsunami near the east coast of Japan destroyed the Fukushima Daiichi nuclear power plant(FD-NPP),causing a massive release of nuclear contaminants.In this paper,a Pacific basin-wide physical dispersion model is developed and used to investigate the transport of nuclear contaminants.The Pacific circulation model,based on the Regional Ocean Modeling System(ROMS),is forced with air-sea flux climatology derived from COADS(the Comprehensive Ocean-Atmosphere Data Set).It is shown that ocean current dominates nuclear contaminant transport.Following the Kuroshio Extension and North Pacific Current,nuclear contaminants at the surface will move eastward in the Pacific as far as 140°W,thereafter dividing into two branches.For the south branch,nuclear contaminants will be transported westward by the equatorial current,and can reach the Philippines after 10 years' time.In contrast,the north branch will arrive at the American west coast and then migrate to the Bering Sea.At 200 m water depth,part of the nuclear materials will move southwestward along with deep ocean circulation,which could potentially reach the east coast of Taiwan.The other part will move to the west coast of America and separate into two branches.One will move northward along the west coast of Alaska,while the other will travel southward to the Hawaiian Islands.The transport of radiation contaminants below 500 m is slow,and will primarily remain in the central Pacific.The physical dispersion model results show that high concentrations of the radioactive isotope cesium-137(137 Cs) will move eastward and reach the central Pacific and west coast of North America in two and eight years,respectively.The sea areas influenced by the nuclear contaminants continue to expand,while peak concentrations decrease in the North Pacific. | WANG Hui WANG ZhaoYi ZHU XueMing WANG DaKui LIU GuiMei | 2012 | Chinese Science Bulletin2012，57，26： | 6 |
| 2 | Assimilating the along-track sea level anomaly into the regional ocean modeling system using the ensemble optimal interpolation显示文摘The ensemble optimal interpolation(EnOI) is applied to the regional ocean modeling system(ROMS) with the ability to assimilate the along-track sea level anomaly(TSLA). This system is tested with an eddy-resolving system of the South China Sea(SCS). Background errors are derived from a running seasonal ensemble to account for the seasonal variability within the SCS. A fifth-order localization function with a 250 km localization radius is chosen to reduce the negative effects of sampling errors. The data assimilation system is tested from January 2004 to December 2006. The results show that the root mean square deviation(RMSD) of the sea level anomaly decreased from 10.57 to 6.70 cm, which represents a 36.6% reduction of error. The data assimilation reduces error for temperature within the upper 800 m and for salinity within the upper 200 m, although error degrades slightly at deeper depths. Surface currents are in better agreement with trajectories of surface drifters after data assimilation. The variance of sea level improves significantly in terms of both the amplitude and position of the strong and weak variance regions after assimilating TSLA. Results with AGE error(AGE) perform better than no AGE error(NoAGE) when considering the improvements of the temperature and the salinity. Furthermore, reasons for the extremely strong variability in the northern SCS in high resolution models are investigated. The results demonstrate that the strong variability of sea level in the high resolution model is caused by an extremely strong Kuroshio intrusion. Therefore, it is demonstrated that it is necessary to assimilate the TSLA in order to better simulate the SCS with high resolution models. | LYU Guokun WANG Hui ZHU Jiang WANG Dakui XIE Jiping LIU Guimei | 2014 | Acta Oceanologica Sinica2014，33，7： | 4 |
| 3 | Coastal plain evolution in southern Hainan Island,China显示文摘The coast of southern Hainan Island is characterized by wide sandy embayments, which consist of ( i) drowned valleys bounded by steep bedrock hills and only locally receiving sediments, and embayments of various dimensions covered either by (ii) alluvial-deltaic deposits or by (iii) sands of coastal beach ridges/barriers and associated elongated lagoons. During the late Tertiary-Pleistocene the area has experienced isostatic and eustatic movements associated with neotectonics and climatic changes. Such history isrecorded in terraces at various altitudes (SO, 40, 20 m asl) and sequences of coastal sand ridges/baymouth bars. The Holocene variations in sea level and climate are recorded in the dated coastal ridges, coral reef and beachrock. Conditions suitable for reef development started about 8000 a BP. The GPR profiles also show that the internal structures of the sand ridges have composite nature being formed by several superimposed secondary ridges. | WANG Ying MARTINI I.Peter ZHU Dakui ZHANG Yongzhan TANG Wenwu | 2001 | Chinese Science Bulletin2001，46，S1： | 3 |
| 4 | Modern geomorphological environment research during rapid urbanization in Shenzhen east coastal zone显示文摘geomorphological 环境是影响人的社会的开发的最基本的变量之一。geomorphological 环境研究的使命是探索最,我们的地球的基本环境和特征出现形态学。结果能被用于资源评估,环境保护并且减少并且阻止地质的灾难。因此,它能服务帮助完成持续开发。这篇论文检验沿海的地区强烈由城市的扩大作为一个盒子影响了的深圳东方。我们使用现代 geomorphological 理论,与 GIS 和 RS 技术一起,方法给 geomorphological 环境和地形分类的特征调音揭示。而且,持续利用应该相对相应 geomorphological 环境被考虑的沿海的生态系统评估和地区性的资源。基于这研究,我们结束那个现代 geomorphological 理论和方法,包括 GIS, RS 和 GPS 由 3S 技术支持了,能在解决环境,资源和人口问题以及目前面对人类的持续发展挑战起一个重要作用。 | GUO Wei LI Shuheng ZHU Dakui | 2011 | Journal of Geographical Sciences2011，21，2： | 2 |
| 5 | Digital Watermark-based Security Technology for Geo-spatial Graphics Data显示文摘The paper presents a set of techniques of digital watermarking by which copyright and user rights messages are hidden into geo-spatial graphics data, as well as techniques of compressing and encrypting the watermarked geo-spatial graphics data. The technology aims at tracing and resisting the illegal distribution and duplication of the geo-spatial graphics data product, so as to effectively protect the data producer’s rights as well as to facilitate the secure sharing of geo-spatial graphics data. So far in the GIS field throughout the world, few researches have been made on digital watermarking. The research is a novel exploration both in the field of security management of geo-spatial graphics data and in the applications of digital watermarking technique. An application software employing the pro- posed technology has been developed. A number of experimental tests on the 1∶500,000 digital bathymetric chart of the South China Sea and 1∶10,000 digital topographic map of Jiangsu Province have been conducted to verify the feasibility of the proposed technology. | JIA Peihong CHEN Yunzhen MA Jinsong ZHU Dakui | 2006 | Chinese Geographical Science2006，16，3： | 2 |
| 6 | Morphology and land ~use of the coastal zone of the North Jiangsu Plain, Jiangsu Province, eastern China显示文摘 | Zhu Dakui Martini I P Brookfield M E | 1998 | Journal of Coastal Research1998，14，2： | 1 |
| 7 | Evolution of radiative sand ridge filed of the South Yellow Sea and its sedimentary characteristics 显示文摘 | Wang Ying Zhu Dakui You Kunyuan | 1999 | Science in China(Series D)1999，42，1： | 1 |
| 8 | Evolution of ra diactive sand ridge field of the South Yellow Sea and its sedi mentary characteristics显示文摘 | Wang Ying Zhu Dakui You Kunyuan | 1999 | Science in China(Series D)1999，42，1： | 1 |
| 9 | Sediment Supply to the Continental Shelf by the Major Rivers of China显示文摘 | Wang Ying Ren Meie Zhu Dakui | 1986 | Journal of Geological Society1986，143，： | 1 |
| 10 | Sedimentary facies of thecentral part of radial tidal sand ridge system of the eastern China coast显示文摘 | Yin Yong Zou Xinqin Zhu Dakui | 2008 | Frontiers of Earth Science2008，2，4： | 1 |
| 11 | Landscape and land use in southern Hainan Island,China显示文摘According to the landscape/land use relation of southern Hainan Island, four main zones are considered: the mountain and high hill zone, the inner coastal zone, the shoreline zone and the marine zone. The economic boom has led to an increase in urbanization and development of tourism, at times harming the local environment. | ZHANG Yongzhan MARTINI I.Peter GE Chendong ZHU Dakui | 2001 | Chinese Science Bulletin2001，46，S1： | 1 |
| 12 | The application of GPR to barrier-lagoon sedimentation study in Boao of Hainan Island显示文摘Sedimentary successions and internal structure of the coastal barrier-lagoon system of Boao,eastern Hainan Island were studied through utilizing data from test holes and trenches and ground-penetrating-radar (GPR) profiles. During late Pleistocene, fluvial and delta plains developed over an unevenly eroded bedrock during low sea level stand, followed by the formation of littoral and lagoon facies and defined coastal barrier-lagoon-estuary system during the post-glacial uppermost Pleistocene-lower Holocene eustatic rise of the sea level, and the upper Holocene high stand. GPR results show that Yudaitan, a sandy coastal bar backed by a low-laying land (shoal) just east of the active lagoon, is a continuous, parallel and slightly-wavy reflectors indicating homogeneous sandy or sandy gravel sediments, and inclined reflectors partly caused by progradation and accumulation of beach sand and gravel. Quasi-continuous, hummocky and chaotic reflectors from the shoal of Nangang village correspond to mixed accumulation of sands and clay. This research indicates the GPR is a non-intrusive, rapid, and economical method for high-resolution profiling of subsurface sediments in sandy gravelly coast. | YIN Yong, ZHU Dakui, TANG Wenwu, Martini I. Peter(1. The Key Laboratory of Coast and Island Development, Nanjing University, Nanjing 210093, China 2. Dept. of Land Resource Science, University of Guelph, Ontario, Canada NIE 4E5) | 2002 | Journal of Geographical Sciences2002，12，3： | 1 |
| 13 | Mangrove coast of Hainan Islands,China显示文摘 | Zhu Dakui | 1988 | Galaxes1988，，7： | 1 |
| 14 | Tideland resources development and utilization显示文摘 | Zhu Dakui | 1986 | Geographical Sciences1986，6，1： | 1 |
| 15 | Morphology and land use of coastal zone of the Jiangsu plain,China显示文摘 | Zhu Dakui | 1988 | Journal of Coastal Research1988，14，2： | 1 |
| 16 | The application of geographic information technology to coastal geomorphology显示文摘With the development of modern oceanic observation technologies, coastal survey data have been experiencing a substantial growth. The integration management of the data from different disciplines, different sources and different formats has become a major research field in coastal geomorphology by using Geographic Information System (GIS). This paper puts forward a new methodology framework of GIS techniques in coastal ocean geomorphology, including data acquisition, process, analysis, and representation. It focuses on some major GIS techniques to study the land-ocean interaction mechanism, such as spatial analysis, submarine topography model and three-dimension (3D) visualization, and apply its result to coastal urban planning, harbor site selection and geomorphology environment about coral reef and islands on the continental shelf. The case studies cover the whole coastal ocean to serve the social community, economical development and diplomatic rights for decision-making all round in the coastal zone. The research shows clearly that the application of coastal multi-source geospatial platform has changed the traditional coastal geomorphology science dramatically from its research scope, fields and methods, however, as made clear in this paper, extracting accurate information from remote sensing data and GIS databases for coastal geomorphological applications is a nontrivial challenge that requires the combined knowledge and skills of information scientists and geomorphologists. | GUO Wei LI Shuheng ZHU Dakui | 2009 | Acta Oceanologica Sinica2009，28，5： | 1 |
| 17 | 海南岛万泉河口海岸动态及其整治对策(英文)显示文摘In this paper, sediment samples were collected along the Wanquan beaches and sieved in the laboratory in order to obtain the grain size distributions and associated parameters, i.e. mean grain size, sorting coefficient and skewness. Furthermore, we have calculated the longshore drift sediment transport rates and equilibrium cross-sectional areas of the entrance channel by using the method of sedimentary dynamics. The results indicate that the longshore drift sediment transport is dominated by waves with a direction from south to north, which result in rapid changes of the entrance channel. Therefore, some suggestions were proposed for improving the water quality and restoring the ecosystem of estuary. The engineering method includes increasing the sea-route of entrance channel, tidal prism and water exchanges in Shamei Lagoon. | 高建华 陈国强 欧维新 Zhu Dakui | 2004 | Journal of Geographical Sciences2004，14，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员