基于云架构的市级政务 GIS 平台研究     

孔繁宇 《测绘与空间地理信息》2015,(8):138-140

云计算是“智慧城市”建设的核心技术之一,而基于云架构的政务GIS则是电子政务建设的重要趋势。针对政务云GIS搭建面临的资源池化、异构兼容、网络部署等问题,本文提出了政务GIS云平台四层框架结构,详细阐述了支撑平台、信息资源和功能服务池化策略,讨论了多种情况下的异构资源兼容策略,并提出“内主外辅”的网络部署方案。  相似文献   

黑龙江省位置服务中心建设与发展     

周源  林富明  张庆全 《测绘与空间地理信息》2015,(8):55-58

重点介绍黑龙江省位置服务中心十年建设过程与研究成果,就中心硬件配备、平台建设进行阐述;对位置服务平台的逻辑组成、功能架构、终端产品接入及服务接口情况作详细说明;针对中心在北斗领域的研究应用、多年来探索的服务模式,以及位置服务标准化建设所做工作进行探讨。文末对黑龙江省位置服务中心下一步的新技术研究与产品化、市场化策略予以展望。  相似文献   

基于RS和GIS的秦岭金钱河流域露天采掘场监测研究     

马红利  白穆  张智  王祖亮  李宏建 《测绘与空间地理信息》2015,(10):161-164

流域是人类活动对生态环境影响的重要监测项目。应用RS与GIS技术,对陕西省内秦岭金钱河流域露天采掘场进行动态监测,得到2007、2009和2011年3期露天采掘场开发现状数据,在此基础上,对比分析近五年来露天采掘场的变化情况,统计出露天采掘场逐年的数量和面积变化。结果表明,近五年来该流域区露天采掘场数量和面积都在逐年增加,但2009~2011年与2007~2009年相比增幅减小,说明金钱河流域露天采掘场开发活动得到了整治,生态环境质量逐渐改善。  相似文献   

基于Skyline的三维数字城市建设项目的设计与研究     

李娟  吴红梅  陈永波 《测绘与空间地理信息》2015,(10):165-167

在分析数字城市建设现状及其存在的问题基础上,提出了三维数字城市建设项目的设计思想和技术路线,对系统的开发结构和系统功能模块设计进行了详细的描述,最后阐述了所涉及的关键技术、系统的应用情况和与国内外同类技术的综合比较。  相似文献   

基于“数字湖州”的规划管理信息系统建设     

卢晓鹏  琚锋  吴建晔 《测绘与空间地理信息》2015,(9)

随着城市建设任务增大,如何以新技术、新方法构建管理信息系统协助城市规划的高效管理一直是人们研究的热点问题。本文以湖州市规划管理信息系统的建设为例,阐述了基于"数字湖州"在线地图调用的可行性,并以此为基础开发建设了服务规划管理全流程的城市规划管理信息系统。  相似文献   

基于CORS系统的网络RTK技术在控制测量中的应用     

李志伟  辛占国  许进 《测绘与空间地理信息》2015,(9):135-136

阐述了CORS系统的基本原理、组成和定位模式,详细叙述了基于CORS系统的网络RTK技术在控制测量中的应用步骤,由此可见,基于CORS系统的网络RTK技术值得推广应用。  相似文献   

浅谈北斗卫星导航系统在测量中的应用     

何国军  崔红英 《测绘与空间地理信息》2015,(9)

北斗卫星导航系统在测量中发挥着重要作用,本文对其系统特点和技术优势进行了分析,阐述了北斗卫星导航系统在保证测量的准确性、降低外业测量工作人员劳动强度方面的优势和应用前景。  相似文献   

Combining geographic information systems and ethnography to better understand and plan ocean space use     

《Applied geography (Sevenoaks, England)》2015

Agencies in the US with oversight for marine renewable energy development idealistically have sought space where this new use might proceed unhindered by other uses. Despite experiential evidence of spatial overlap among existing ocean uses, a lack of documentation made the identification of potential space-use conflicts, communication between existing and potential ocean users, and the design of mitigation exceedingly challenging.We conducted a study along the US Atlantic and Pacific coasts to gather and document available spatial information on existing use through a compilation and organization of geographic information system (GIS) data. Stakeholder group meetings were used to vet the collected spatial data, and ethnographic interviews were conducted to gather knowledge and cultural perspectives. Results show extensive coverage and overlap of existing ocean space uses and provide a visualization of the social and cultural landscape of the ocean that managers can use to determine which stakeholders to engage.Marine resource managers are encouraged to recognize that marine space use is dynamic and multi-dimensional and as such research thereof requires a balance between the efficiency of GIS and the stories captured and told by ethnographic research. There are important linkages within and across fisheries and other uses, communities and interests, and across the land–sea interface. Therefore, it is important to use techniques demonstrated in this research that (1) integrate ethnographic and geospatial data collection and analysis; (2) engage stakeholders throughout the process; and (3) recognize the unique qualities of each geographic location and user group to support sound decision-making.  相似文献   

GIS-based cost distance modelling to support strategic maritime search and rescue planning: A feasibility study     

《Applied geography (Sevenoaks, England)》2015

Geographic information system (GIS) based methodologies are widely used to various problems. However, its potential for application to strategic maritime search and rescue (SAR) planning remains largely unexplored. To investigate the applicability of GIS-based tools to this problem, this paper presents an approach to evaluate accessibility and response times in a sea area. Such information aids to objectify the response effectiveness of a SAR system, which is important for rational resource allocation. The presented methodology accounts for the main characteristics of maritime response, namely spatial accessibility, capabilities of search and rescue units (SRUs) and prevailing wave conditions, which affect the attainable SRU speeds. An application to the Finnish areas of the Gulf of Finland is shown. Despite the existence of some difficulties with currently available tools (e.g. accurate and user-friendly spatial wave models and challenges with using raster-based methods in topologically complex areas) and limitations in knowledge (e.g. the SRU capabilities in actual operations), the results indicate that the methodology provides good opportunities for enhancing maritime decision making.  相似文献   

Monitoring land changes in an urban area using satellite imagery,GIS and landscape metrics     

《Applied geography (Sevenoaks, England)》2015

Monitoring land changes is an important activity in landscape planning and resource management. In this study, we analyze urban land changes in Atlanta metropolitan area through the combined use of satellite imagery, geographic information systems (GIS), and landscape metrics. The study site is a fast-growing large metropolis in the United States, which contains a mosaic of complex landscape types. Our method consisted of two major components: remote sensing-based land classification and GIS-based land change analysis. Specifically, we adopted a stratified image classification strategy combined with a GIS-based spatial reclassification procedure to map land classes from Landsat Thematic Mapper (TM) scenes acquired in two different years. Then, we analyzed the spatial variation and expansion of urban land changes across the entire metropolitan area through post classification change detection and a variety of GIS-based operations. We further examined the size, pattern, and nature of land changes using landscape metrics to examine the size, pattern, and nature of land changes. This study has demonstrated the usefulness of integrating remote sensing with GIS and landscape metrics in land change analysis that allows the characterization of spatial patterns and helps reveal the underlying processes of urban land changes. Our results indicate a transition of urbanization patterns in the study site with a limited outward expansion despite the dominant suburbanization process.  相似文献