基于Web Service的地球系统碳循环建模框架研究     

毛曦  李琦  张子民 《地理信息世界》2012,10(2):57-60,64

在分析了现有地球系统碳循环模型后,提出了基于Web Services的建模框架方案。定义了地球系统碳循环建模框架的体系结构,设计了地球系统碳循环模型服务的元数据。最后,构建了地球系统碳循环模型服务耦合与兼容性校验方式。实验表明,基于Web Services的地球系统碳循环建模框架可以实现网络环境下异构碳循环模型服务的集成建模。  相似文献   

How can marine ecosystem services support the Blue Growth agenda?     

《Marine Policy》2017

The EU Blue Growth Agenda targets maritime economic activities that have the sea and the coasts as drivers. These activities are supported by marine Ecosystem Services (ES) in combination, or not, with abiotic outputs from the marine natural capital. This paper analyses Blue Growth activities with regards to the demand and supply of marine ES and Good Environmental Status (GES). The results show that marine provisioning ES support aquaculture and blue biotechnology, while blue energy is supported by marine provisioning ES and by abiotic provisioning, and abiotic provisioning supports extraction of marine mineral resources. Maritime, coastal and cruise tourism is supported by cultural marine ES and cultural settings dependent on marine abiotic structures. All these multi-sectoral economic activities depend on healthy marine and coastal ecosystems that are provided by regulating and maintenance ES combined with the abiotic regulation and maintenance by natural marine physical structures and processes. In order to balance concurrent sectoral interests and achieve sustainable use of marine resources there is the need to consider indicators for demand for ES, which are social and economically driven, and for the supply, which are dependent on ecosystems capacity to provide the required marine ES. Some of the actions foreseeing GES are already anticipated in legislation that underpin Blue Growth, whilst others could benefit from additional regulation, particularly in what concern the exploration and exploitation of marine mineral and biological resources. Blue Growth options require navigating trade-offs between economic, social and environmental aspects.  相似文献   

基于WebService的地球系统碳循环建模框架研究     

毛曦  李琦  张子民 《测绘软科学研究》2012,(2):57-60,64

在分析了现有地球系统碳循环模型后,提出了基于WebServices的建模框架方案。定义了地球系统碳循环建模框架的体系结构,设计了地球系统碳循环模型服务的元数据。最后,构建了地球系统碳循环模型服务祸合与兼容性校验方式。实验表明,基于WebServices的地球系统碳循环建模框架可以实现网络环境下异构碳循环模型服务的集成建模。  相似文献   

LUNARINFO: A Data Archiving and Retrieving System for the Circumlunar Explorer Based on XML/Web Services     

ZUO Wei  LI Chunlai  OUYANG Ziyuan  LIU Jianjun  XU TaoNational Astronomical Observatories  Chinese Academy of Sciences  Beijing  Institute of Geochemistry  Chinese Academy of Sciences  Guiyang  Guizhou Graduate School  Chinese Academy of Sciences  Beijing 《《地质学报》英文版》2004,78(5):1094-1103

It is essential to build a modern information management system to store and manage data of our circumlunar explorer in order to realize the scientific objectives. It is difficult for an information system based on traditional distributed technology to communicate information and work together among heterogeneous systems in order to meet the new requirement of Internet development. XML and Web Services, because of their open standards and self-containing properties, have changed the mode of information organization and data management. Now they can provide a good solution for building an open, extendable, and compatible information management system, and facilitate interchanging and transferring of data among heterogeneous systems. On the basis of the three-tiered browse/server architectures and the Oracle 9i Database as an information storage platform, we have designed and implemented a data archiving and retrieval system for the circumlunar explorer-LUNARINFO. We have also  相似文献   

GridGIS若干关键技术研究     

吴明光  谢耕  原传刚 《测绘学院学报》2006,(6)

分析了当前地理信息系统运用和功能现状,提出了网格地理信息系统的4点技术特征,并在此基础上提出了一种以服务为中心的体系结构。针对面向对象空间数据模型无法描述许多广泛存在却无法用属性、方法和事件来描述的地理逻辑,以及空间数据语意不一致带来的数据集成和综合应用问题,提出了一种基于规则的空间数据组织模式。针对网格环境下空间信息的深度共享问题,提出了一种结合Multi-Agents和WebServices这两种分布式计算技术的空间信息服务模式。  相似文献   

浅析网络地理信息系统WebGIS的构建技术     

尚武 《国土资源信息化》2006,(1):33-36

WebGIS是地理信息系统与Internet技术相结合的产物,是当前地理信息系统应用和研究热点。本文阐述了WebGIS的特点,介绍了目前实现WebGIS系统的几种构建模型、实现方法及其数据的管理和组织,并进行了详细的分析和比较。  相似文献   

面向服务的软件体系结构     

宋坤  周智海 《海洋技术学报》2007,26(4):131-134

介绍了面向服务的软件体系结构的基本概念、结构模型等,并通过实现SOA的实例—Web Services,进一步阐述SOA的基本特征及应用领域,为将面向服务的软件体系结构(SOA)理念引入到海洋环境监测数据通信与管理奠定技术基础。  相似文献   

互花米草海滩生态系统服务功能及其生态经济价值的评估——以江苏为例   总被引：20，自引：1，他引：20  

李加林  张忍顺 《海洋科学》2003,27(10):68-72

以江苏互花米草(Spartina alterniflora)海滩生态系统为例,探讨了互花米草海滩生态系统的服务功能,并采用能值分析、市场价值和替代价格等多种评价方法对江苏互花米草海滩生态系统各项服务功能的价值进行了评价.结果表明,江苏互花米草海滩生态系统服务价值平均每年为1.08×109元,其中直接经济价值为6.11× 107元,间接经济价值为1.02×109元,间接经济价值是直接经济价值的16.7倍.  相似文献   

基于Web Services的空间信息资源管理研究   总被引：1，自引：1，他引：0  

李科  杜卫国  游雄 《地理空间信息》2008,6(5)

目前由于Internet带宽的限制,WebGIS对空间数据的访问是WebGIS发展的瓶颈。为满足WebGIS对空间数据的统一管理和运行速度这2个方面的要求,文中实践了一种空间信息资源管理模型,在此基础上,设计了一种新的空间数据索引模型--自适应双层网格索引模型,并通过一系列的实验验证了这种模型满足WebGIS需求。  相似文献   

Cost and value of multidisciplinary fixed-point ocean observatories     

《Marine Policy》2016

Sustained ocean observations are crucial to understand both natural processes occurring in the ocean and human influence on the marine ecosystems. The information they provide increases our understanding and is therefore beneficial to the society as a whole because it contributes to a more efficient use and protection of the marine environment, upon which human livelihood depends. In addition the oceans, which occupy 73% of the planet surface and host 93% of the biosphere, play a massive role in controlling the climate. Eulerian or fixed-point observatories are an essential component of the global ocean observing system as they provide several unique features that cannot be found in other systems and are therefore complementary to them. In addition they provide a unique opportunity for multidisciplinary and interdisciplinary work, combining physical, chemical and biological observations on several time scales. The fixed-point open ocean observatory network (FixO3) integrates the 23 European open ocean fixed-point observatories in the Atlantic Ocean and in the Mediterranean Sea. The programme also seeks to improve access to key installations and the knowledge they provide for the wider community, from scientists, to businesses, to civil society. This paper summarises the rationale behind open ocean observatories monitoring the essential ocean variables. It also provides an estimate of the costs to operate a typical fixed-point observatory such as those included in the FixO3 network. Finally an assessment of the type of data and services provided by ocean observations and their value to society is also given.  相似文献