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水库防洪调度是一个非常复杂的过程。水库防洪调度的信息化主要是借助测量、遥测、遥感(RS)、地理信息系统(G IS)、全球定位系统(GPS)等手段采集基础数据,构建数字化水库防洪数据管理平台和水库虚拟三维环境。在该平台和环境中,以系统软件和数学模型对水库流域的水雨情及洪水的调度方案进行模拟、分析和研究,提供决策支持,从而增强防洪调度决策的科学性和预见性。实践表明,通过RS、GIS技术建立的水库三维防洪调度系统能够为水库管理者提供水库防洪调度方案制定与分析、防洪调度决策等方面的强有力的、科学的辅助支持。本文结合厦门"汀溪水库三维防洪调度系统"的实际研发,探讨了RS和GIS技术在水库防洪调度中的应用。 相似文献
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基于ArcGIS Engine的车辆监控GIS系统开发 总被引:1,自引:0,他引:1
吴建华 《地球信息科学学报》2011,13(1):88-94
基于GPS/GIS的车辆临控调度系统可以实时了解车辆的位置、速度、方向等状态信息,为人们提供了一种全新的车辆管理手段.客户端车辆监控GIS系统是车辆监控系统中重要的组成部分,对其进行研究开发具有较强的现实意义与应用价值.针对实际的车辆监控项目的应用需求,本文采用ArcGIS Engine、Oracle数据库和Visua... 相似文献
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在飞速发展的现代化城市,研究GIS在安防中的应用对建设平安城市起到不可忽视的作用,有利于安全、防灾,减灾,将灾害损失减到最低.系统采用GIS技术,使用Borland C Builder编程语言,利用TCP/IP通信技术.实现对防区的实时监控、监控设备的管理、报警处理、视频显示功能,并实现部分应急联动功能,初步构建了一个基于GIS技术的安防平台.相比过去同类平台,提出了引入GIS技术,从而使监控设备的地学信息更加直观,利用监控设备对防区进行实时监控,同时通过报警探头传送报警信息,根据防区内摄像头调出视频信息进行报警处理,并直接利用相关指令进行视频切换.系统的建立在构建和谐社会、建设平安城市等方面具有广阔的应用前景.并且可为城市应急联动系统提供接口,为保障公共安全降低风险损失,高效利用有限的资源,提高政府对紧急事件快速反映和抗风险的能力,为市民提供更快捷的紧急救助服务. 相似文献
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青海省地质调查院化探分院在野外工作中,将GPS航迹监控系统与MAPGIS地理信息系统相结合,成功地革新了化探野外采样工作质量监控技术,对野外采样过程实施更为直观的航迹监控方法.有效地提高了工作效率.文章系统地介绍了该技术在工作中的应用,并对关键技术环节进行分析,总结了基于MAPGIS平台上的GPS航迹监控技术的方法和流程. 相似文献
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基于PDA的GPS车辆监控系统 总被引:6,自引:0,他引:6
结合GPS、GIS、GPRS建立空间数据库,以及网络信息的传递以实现车辆监控。针对GPS与GIS集成中的一些关键技术进行研究:GPS信号是如何接受和处理、GPS信号点的地图匹配、车辆导航,实现监控中心和车辆之问的无线通信和信息交互,从而实现车辆的监控。 相似文献
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赵军 《地球信息科学学报》2006,8(4):70-74
“数字化东营”地理信息共享系统(DDYGISS)是集“3S”技术(GIS、GPS、RS)、对象关系数据库技术、Internet技术、分布式组件技术等为一体的WebGIS服务平台,是面向资源集合、共享、应用服务的开发平台和运行平台。本文提出了在DDYGISS平台上进行了二次开发实现了GIS和政务资源系统的高度集成,从而使单调的政务资源信息(如经济指标、人才、招投标信息等)可视化与空间化,效果很好。 相似文献
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介绍Visual c++环境下的组件式GIS技术开发的车辆监控系统,以公路交通GPS/GSM车辆定位和管理系统为例,采用MapInfo公司的MapX作为地图组件,探讨了在visual C++环境中如何调用MapX电子地图组件、基于UDP的异步网络通信等关键技术.实际应用表明系统成本低可靠性好能满足用户需要. 相似文献
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Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area. 相似文献
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Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter. 相似文献
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正Rapid changes of Arctic sea ice cover have been in the focus of the international climate research community in recent years.Quite a few of nations have completed a large number of related surveys and research projects in the Arctic Ocean.Up to now,China has performed six research cruises to the Arctic Ocean resulting in a significant volume of research output.Improved knowledge on the atmospheree-sea ice-ocean interactions in the Arctic is a 相似文献
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The GRV 024516 and GRV 024517 meteorite samples collected from Grove Montains,Antactica are ureilite and H5 ordinary chondrite,respectively.Based on the study of mineralogy-petrology,the cosmic-ray exposure ages and gas retention ages of these two meteorites were determinated and calculated.Their cosmic-ray exposure ages are 33.3 Ma,51.7 Ma,and gas retention ages are 1936.8 Ma and 3720 Ma,respectively.The ureilite contains diamond,graphite and amorphous C,which are mainly carrier of noble gases indicating obviously shock metamorphism effects,which induced 40Ar partial loss.The H5 chondrite indicates thermal metamorphism of parent body,its gas retention age fall the range between 3220 Ma and 4510 Ma of the least shocked H5 chondrites 相似文献
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《极地研究(英文版)》2014,(3)
正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprchensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose is to publish achievements in fundamental research,applied 相似文献
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《山地科学学报》2014,(4):I0004-I0009
<正>AIMS AND SCOPE(Editorial Policy)The Journal of Mountain Science(JMS)is devoted to mountains and their surrounding lowlands-ecoregions of particular global importance,with a particular emphasis on the important highlands/mountains in the world,such as the Tibetan Plateau,the Himalayas,the Alps,the Andes,the Rockies and many other mountain ranges of our planet. 相似文献
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《山地科学学报》2014,(4)
<正>The Journal of Mountain Science(JMS),founded in2004,is an international English-language journal on mountain sciences.JMS is supervised by the Chinese Academy of Sciences(CAS),sponsored by the Chengdu Institute of Mountain Hazards and Environment,CAS,published by Science Press China,and distributed by Springer exclusively throughout the world(excluding Mainland China).The JMS is published bimonthly,fulltexted in SpringerLink and CNKI,indexed/abstracted by 相似文献