重庆市测绘成果分发管理机制及办法研究

随着测绘成果的广泛应用,测绘成果分发的管理要求逐渐提高,建立测绘成果分发全生命周期管理的工作机制十分重要。建设测绘成果分发服务系统,用信息化手段让成果分发全生命周期管理机制得以实现,以提高重庆市测绘成果分发的服务水平,为成果保密安全管理提供坚实基础。     

四川省基础地理信息分发服务系统的设计与实现

随着省级基础地理信息数据库的建成以及测绘行业信息化进程的大力推进,网络化测绘成果分发服务势在必行.本文介绍了基于网络的四川省基础地理信息分发服务系统的系统设计与实现,并总结了系统的关键技术问题与创新.     

地理信息网络分发服务元数据转换的研究

基于XML的元数据服务(目录服务)是测绘成果分发服务系统项目建设中的一个重要内容。对《基础地理信息数字产品元数据》和《测绘成果网络分发服务系统建设技术指南》中的2种元数据进行比较分析,提出这2种元数据快速批量转换的设计思路,并编制程序实现基于XML的地理信息网络分发服务元数据的批量转换,提高了工作效率和元数据质量,应用效果较好。     

谈测绘成果网络分发服务系统

随着国民经济建设的快速发展,对测绘资料成果的需求日益增多。为了提高测绘服务水平,从应用的角度,介绍测绘网络分发服务系统的基本概念和功能结构,阐述如何通过利用现代网络和计算机软硬件技术,实现直接面向用户提供测绘成果信息服务。     

辽宁省测绘成果网络化分发服务系统的功能设计

建设辽宁省测绘成果网络化分发服务系统(以下简称"分发服务系统")的目标是针对涉密测绘成果对外提供的流程,建立一套从测绘成果元数据与目录对外发布、网上查询、在线订购、申领审批(外网)分发管理(内网)等功能于一体的测绘成果服务管理体系。     

浅谈面向信息化测绘的测绘成果管理与分发服务体系建设

地理信息服务网络化和应用社会化是信息化测绘体系建设最本质的特征与需求。本文针对省级地理信息数据管理部门的业务和职责,阐述了在信息化测绘体系建设中,作为地理信息服务网络化和应用社会化重要组成部分的测绘成果管理与分发服务体系建设的思路与内容。     

甘肃省测绘地理信息成果分发服务系统的设计与实现

根据现代社会各行业对测绘地理信息档案成果的需求,档案信息化已成为档案存储、管理、应用的趋势和要求。本文基于档案信息化项目背景,阐述和分析了测绘地理信息成果分发服务系统的实现与集成等关键技术。     

基于WebGIS的内蒙古测绘成果目录信息发布系统的设计与实现

内蒙古测绘成果目录信息发布系统是基于自治区测绘成果目录数据库而建立的网络地理信息系统.本系统采用WebGIS技术,使用ArcGIS Server地图开发平台和Visual Studio.NET 2005开发环境,对自治区测绘成果目录信息准确、及时地进行发布,实现了远程用户对内蒙古测绘成果目录的查询检索、产品订购和数据咨询等服务,全面提升了自治区测绘成果分发服务的水平.     

省级地理信息分发服务系统设计与实现

网络化基础地理信息分发服务系统建设,是提升社会化应用分发服务水平的重要平台,也是信息化测绘技术体系的重要组成部分。本文阐述省级基础地理信息网络分发服务系统总体结构、实现功能及解决的关键技术。     

浅谈江苏省测绘资料对外分发服务的具体方法

本文主要介绍了江苏省基础测绘成果管理与分发系统在江苏省测绘资料对外查询与分发服务中的具体应用.     

阿克苏河-塔里木河水系水质污染遥感监测与评价

 采用Landsat TM数据分析了阿克苏河—塔里木河断面水质污染状况,通过波段的DN值和常规监测数据建立能反映水质状况的 污染物监测模型。结果发现,将2000年常规监测数据代入模型后,与遥感数据的结果基本吻合| 重建阿克苏河—塔里木河的连续水体 污染变化曲线,得出污染物浓度随着远离上游而增加。     

Gravity Changes Before Large Earthquakes in China: 1998-2005

Although it is well known that coseismic gravity changes take place during an earthquake, previous research has not yielded convincing evidence demonstrating that significant gravity changes occur before large earthquakes. Furthermore, even if we suspect that gravity changes occur before large earthquakes, we have yet to demonstrate how to consistently observe these changes for useful earthquake forecast that would bring benefits to society. We analyzed ground gravity survey data obtained in 1998, 2000, 200...     

Landslide risk analysis between Giri and Tons Rivers in Himachal Himalaya (India)

The area around Sataun in the Sirmur district of Himachal Pradesh, India (falling between the rivers Giri and Tons; both tributaries of the Yamuna River) was studied for landslide vulnerability on behalf of the inhabitants. The study was made using extensive remote sensing data (satellite and airborne). It is well supported by field evidence, demographic and infrastructural details and aided by Geographic Information System (GIS) based techniques. Field observations testify that slope, aspect, geology, tectonic planes, drainage, and land use all influence landslides in the region. These parameters were taken into consideration using the statistical approach of landslide hazard zonation. Using the census data of 1991, vulnerability of the populace to the landslide hazard was accessed. As most of the infrastructure in the region is concentrated around population centres, population data alone was used for vulnerability studies.     

GNSS系统及其技术的发展研究

阐述了国际上卫星导航系统的总体发展,对美、俄、欧、中的四大全球系统,以及相关的区域系统和增强系统进行了简单的介绍,研究分析了GNSS系统及其技术的发展趋势,同时分析了我国Compass全球系统面临的机遇和挑战,并提出了我国未来工作的建议.     

“4D”技术及其应用

介绍“４Ｄ”（即数字地面模型、数字正射影像、数字栅格地图和数字线划地图）系列产品的生产流程、关键技术、及其在耕地保护、防灾减灾救灾和城市规划等方面的应用方法。     

Virtual Australia: its key elements – know,think, communicate

Abstract

Virtual Australia is not a well-defined or agreed concept. This discussion paper conceptualises Virtual Australia as a ‘virtual [digital] model containing and representing all non-trivial objects and their contextual environment – from blue sky to bedrock – in real world Australia’. It describes a scenario for Virtual Australia, one or two decades from now, in which the locations and conditions of non-trivial objects and their environment are updated automatically through a combination of remote sensing and wireless communication technologies in support of a ‘Supranet’. It then examines the concept of the ‘Supranet’ – a pervasive information network based largely on wireless technology linking the physical world to a virtual model in real time – and develops and discusses three principal characteristics of the Supranet: the ability to have or collect specific information (know); the ability to process information (think); and the ability to communicate that information. If, in the near future, any or all non-trivial devices are to some extent able to know, think and communicate, the potential for object autonomy will be realised.     

Toward seamless indoor-outdoor applications: Developing stakeholder-oriented location-based services

Location-Based Services (LBS),an emerging new business based on smartphone and mobile networks,are becoming more and more popular.Most of these LBSs,however,only offer non-seamless indoor/outdoor applications and simple applications without giving stakeholders the chance to play an active role.Our specific aim is to solve these issues.This paper presents concepts to solve these issues by expanding the Open Location Services Interface Standard (OpenLS) to allow seamless indoor/outdoor positioning and to extend the content of the services to include information recommended by stakeholders.     

GIS空间数据的采集误差及其分析

本文详细阐述了GIS数据采集过程中的误差来源，重点分析了通过地图、遥感和摄影测量等方式采集数据所产生的误差及其特性，分析了其对GIS数据的影响与消减方法。     

基于Skyline的企业总图3维信息系统

3维技术以其直观、眩目的表现力深受人们喜爱.利用3S技术和Skyline开发平台,可以构建大型企业3维地理信息系统,以满足企业设计部门和资产管理部门对基础地理信息的需求.兼容原有2维系统的总图3维信息系统,将为企业的日常管理、设计施工、分析统计、规划决策等提供更加可靠、直观、多层次、多功能的综合服务信息.