太平洋上的奇观──汤加王国添新岛

太平洋上的奇观──汤加王国添新岛南太平洋岛国汤加位于太平洋火山带，其海域内火山活动偶有发生。１９９５年６月１２日，一家航空公司宣称，他们发现汤加首都努库阿罗法以北１２０海里的麦蒂斯暗礁处海面上缕缕烟雾袅袅升起，直至２０００米高空。几天后，邻岛上的居民...     

“辩证思维是我们应对挑战的思想武器”——访国土资源部规划司司长董祚继

2015年,既是“十二五”规划收官之年,又是“十三五”规划谋划之年.国土资源部规划司的任务可谓空前繁难,压力山大.如何担当?司长董祚继表示,他们已找到了应对的“思想武器”. “我们必须不断接受马克思主义哲学智慧的滋养,更加自觉地坚持和运用辩证唯物主义世界观和方法论,增强辩证思维、战略思维能力,努力提高解决我国改革发展基本问题的本领.”在深入地学习了习近平总书记在中央政治局2015年第一次集体学习时的重要讲话后,董祚继对全司的同志深有感触地说:“总书记是运用辩证思维的大师.从马克思主义哲学中寻求滋养,可以让我们绕过暗礁抵达正确的道路.”     

面向“数字城市”的多源信息分类及数据结构设计

对组成"数字城市"多源信息的城市基础地理信息、城市专题信息、时间信息进行分类,提出信息层次分类的设计思想,并举例予以说明;在此基础上,设计出城市基础地理信息、城市专题信息、时间信息的数据结构,为构建"数字城市"奠定了一定的技术基础.     

深圳市规划国土资源信息服务电子平台

一、前言 深圳市国土资源信息服务电子平台是在现有的全局统一的规划国土管理信息系统基础上,建立对外信息发布网站和各类信息服务子系统的集成化信息服务电子平台。通过深圳市国土资源信息服务电子平台的建设,加强信息的整理、整合、挖掘和发布工作,形成全市统一的、权威的信息服务窗口,实现国土资源信息的社会共享与服务,充分发挥国土资源信息的基础性和公益性作用。     

国土资源部2008年政府信息公开工作年度报告

2008年是实施《政府信息公开条例》的第一年,国土资源部认真贯彻实施《政府信息公开条例》,积极推进政府信息公开工作。通过建立健全制度,完善工作机制,升级改造部门户网站,构建信息公开平台,保障了国土资源部政府信息公开工作依法、及时、准确、有序地开展,为社会提供了方便、快捷的信息公开服务。     

福建电网气象信息预警系统运行

福建电网气象信息预警系统投入试运行,作为首家省级电网气象信息预警示范系统,将有效提高福建电网的综合防灾减灾能力和电网运行的安全性和稳定性。系统采集国家和福建省专业气象部门提供实时及预报气象信息,集成了福建电力自动气象站系统、水调自动化系统提供的实时水情、气象信息,通过GIS界面能够方便、直观地以图形或表格展示各种实时信息、预报信息、统计信息、查询结果等。     

城市轨道交通不动产产籍信息数据库设计

近些年来,城市轨道交通的快速发展形成了大量的不动产产籍信息,这些信息涉及城市轨道交通全生命周期,时间跨度大、专业种类多、信息涵盖内容广、管理难度大。本文介绍了城市轨道交通不动产产籍信息涉及的种类,并根据信息特征设计了城市轨道交通不动产产籍信息数据库。     

信息构建在政府网站信息公开栏目中的应用

文章论述了信息构建的基本理论,结合我国政府网站信息公开栏目的实际,指出政府网站信息公开栏目信息构建要达到清晰化和可理解,以更好地实现政府信息公开和服务用户的目标。通过中国政府网信息公开专栏的实例分析了专栏在信息组织系统、标识系统、导航系统、搜索系统的构建特点和不足之处,总结了专栏的信息构建目标实现情况,可为我国政府网站信息公开栏目的建设提供指导和借鉴。     

信息资源开发问题研究

随着知识经济的到来,信息已成为一种重要的社会资源.进一步开发信息资源,是经济发展的战略需要.目前,尽管信息资源得到了一定程度的开发,但仍处于起步阶段,全民信息意识的增强、信息基础设施的建设、人才的培养是信息资源开发的基本思路.     

不动产登记信息管理基础平台接入技术机制研究

《不动产登记暂行条例》明确要求建立全国统一的信息平台.各级不动产登记机构的登记信息实时纳入统一的信息平台,形成标准统一、内容全面、覆盖全国、互相关联、实时更新、互通共享的不动产登记数据库体系.本文针对全国各省、市、县不动产登记信息平台不同的建设和运行模式,研究了信息平台接入技术机制,提出了国家级信息平台的接入要求、接入内容、接入机制以及质量控制等内容,形成了信息平台接入技术机制框架,为全国信息平台接入工作提供借鉴.     

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。     

Monitoring drought dynamics in the Aravalli region (India) using different indices based on ground and remote sensing data

The hard-rock hilly Aravalli terrain of Rajasthan province of India suffers with frequent drought due to poor and delayed monsoon, abnormally high summer-temperature and insufficient water resources. In the present study, detailed analysis of meteorological and hydrological data of the Aravalli region has been carried out for the years 1984–2003. Standardised Precipitation Index (SPI) has been used to quantify the precipitation deficit. Standardised Water-Level Index (SWI) has been developed to assess ground-water recharge-deficit. Vegetative drought indices like Vegetation Condition Index (VCI) and Temperature Condition Index (TCI) and Vegetation Health Index (VHI) have been computed using NDVI values obtained from Global Vegetation Index (GVI) and thermal channel data of NOAA AVHRR satellite. Detailed analyses of spatial and temporal drought dynamics during monsoon and non-monsoon seasons have been carried out through drought index maps generated in Geographic Information Systems (GIS) environment. Analysis and interpretation of these maps reveal that negative SPI anomalies not always correspond to drought. In the Aravalli region, aquifer-stress shifts its position time to time, and in certain pockets it is more frequent. In comparison to hydrological stress, vegetative stress in the Aravalli region is found to be slower to begin but quicker to withdraw.     

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.     

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...     

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。     

地理数据库的关系模型及其实现

本文从以图论观点分析地理实体入手,系统阐述了地理数据库关系模型的设计法和过程。作者于1984年4～9月间在微型机上设计建立了关系型地理数据库的实方验系统(RGDB)。该系统采用了本文提出的关系模型,采用了可动态扩库的子库组合结构,这种结构具有灵活性和提高空间利用率的优点。RGDB含有多种功能的数据操作命令,除了具有一般检索功能外,还能进行“开窗”选取和十分“自由”的映象选取。本文对RGDB系统的主要性能和实现途径作了扼要介绍。