首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 46 毫秒
1.
从地理信息管理、空间基础设施、地理信息产业发展情况等方面介绍了加拿大地理信息产业发展的现状,并分析加拿大地理信息产业发展的特点,提出促进我国地理信息产业健康快速发展的对策、建议。  相似文献   

2.
我国地理信息产业现状分析   总被引:7,自引:2,他引:5  
钟耳顺  刘利 《测绘科学》2008,33(1):17-20
本文在对我国地理信息产业规模、主体、技术、人才等方面进行调查的基础上,分析了我国地理信息产业发展的总体现状,研究了我国地理信息产业发展的主要动力和发展方向,从基础地理信息资源、地理信息产权、市场机制、安全保密等方面指出了我国地理信息产业发展亟待解决的几个问题。  相似文献   

3.
深圳市地理信息产业政策研究及建议   总被引:1,自引:0,他引:1  
深圳市2014年地理信息产业调查估算产值为50-60亿元,产业发展潜力具有很大的挖掘空间。有效的产业政策可以促进产业发展。为加快深圳地理信息产业发展,本文在对深圳市现有地理信息产业政策体系进行全面梳理和政策问题分析的基础上,开展促进深圳市地理信息发展的产业政策研究,提出深圳市地理信息产业优先发展方向、领域,并基于地理信息产业政策研究理论框架,给出具有针对性的政策完善建议。  相似文献   

4.
本文从地理信息产业的基本概念和特点出发,阐述了我国目前地理信息产业发展的现状和存在的主要问题,并提出加强地理信息市场监管,促进地理信息产业发展的若干建议和意见。  相似文献   

5.
邵彬 《四川测绘》1997,20(2):51-54
本文阐述了发展基础地理信息产业对发展四川省信息产业的重要意义,分析了四川省基础地理信息产业发展的现状,并就发展基础地理倩息产业提出了若干建议.  相似文献   

6.
测绘地理信息产业是国家战略性新兴产业的重要组成部分,重庆市高度重视产业发展.通过对重庆市测绘地理信息产业发展现状进行摸底调查和SWOT分析,提出了促进产业发展的对策和建议.  相似文献   

7.
地理信息产业发展的滚滚车轮刚刚驶进2014年,我们就迎来了一个重大喜讯——《国务院办公厅关于促进地理信息产业发展的意见》正式印发!这是党中央国务院对新形势下地理信息产业发展的战略性决策部署,是我国地理信息产业发展史上具有里程碑意义的纲领性文件。中国地理信息产业协会决心要认真学习宣传贯彻《意见》精神,与业界同仁一道,  相似文献   

8.
印度地理信息产业发展基础与现状研究   总被引:1,自引:0,他引:1  
主要从地理信息资源生产管理体制、空间基础设施建设、产业政策3个方面分析了印度地理信息产业发展基础,并对当前印度地理信息产业规模、市场、企业、人才培养以及发展潜力等方面的现状进行了研究,对比我国分析了当前印度地理信息产业发展的优势和存在的制约。  相似文献   

9.
建立能够准确衡量地理信息产业创新能力的指标, 对于更好地指导和促进地理信息产业发展具有十分重要的现实意义。本文从分析地理信息产业创新能力的内涵出发, 在充分吸收国家关于企业自主创新能力衡量指标的基础上, 结合地理信息产业自身的结构特点, 根据客观性、系统性、可获取性、重点突出的4大设计原则, 研究提出了衡量我国地理信息产业创新能力的综合性指标和关键性指标, 并对当前我国地理信息产业创新能力进行了初步分析和评价。  相似文献   

10.
试论地理信息产业的发展方向与行动对策   总被引:8,自引:0,他引:8  
陈军  杜道生 《测绘通报》1994,(6):13-16,29
本文首先分析了当今对地理信息与服务的新需求,继而讨论了地理信息产业形成发展的趋势和基本特点;在此基础之上,论述了地理信息产业的发展方向:建设和发展地理信息基础设施,开展地理信息应用工程、设计和发展空间型决策支持系统,分析提出了发展我国地理信息产业的若干行动对策;文章还分析讨论了测绘业在这种新型地理信息产业中的作用和行动对策。  相似文献   

11.
 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。  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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...  相似文献   

15.
GNSS系统及其技术的发展研究   总被引:3,自引:1,他引:2  
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.  相似文献   

16.
“4D”技术及其应用   总被引:13,自引:0,他引:13  
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。  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
地理数据库的关系模型及其实现   总被引:1,自引:0,他引:1  
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。  相似文献   

20.
GIS空间数据的采集误差及其分析   总被引:2,自引:0,他引:2  
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。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号