共查询到20条相似文献，搜索用时 640 毫秒
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石油行业GIS技术应用现状与展望 总被引：1，自引：0，他引：1
重点介绍了国内外石油行业勘探、开发、生产、管道运输、炼油、化工和市场营销等主要业务领域地理信息系统技术的应用情况,并对石油行业地理信息系统的主要发展趋势进行了展望。 相似文献
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针对地理信息系统软件开发过程存在的问题展开论述,分析过去开发模式各个环节中存在的问题,并以此为基础,提出新的地理信息系统开发模式.介绍以用户为主体、业务为主导、应用为目标的开发模式.详细介绍面向对象的系统软件开发模式. 相似文献
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简要介绍了3维数字城市建设背景、分析了建设3维地理信息系统的必要性,描述了3维地理信息系统的建设过程,并简要地介绍了其在规划方面的应用。 相似文献
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校园房产管理地理信息系统开发实践 总被引：1，自引：0，他引：1
主要从系统开发平台的选择、数据库建设、功能开发以及系统的应用等几方面介绍了华东师范大学校园房产管理地理信息系统的开发与实践。系统采用ArcSDE空间数据引擎和SQL Server关系数据库统一管理空间数据和属性数据,在ArcGIS8.3的平台上采用内置的VBA开发环境进行嵌入式二次开发,实现了多层次结构的校园房产管理地理信息系统。 相似文献
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哈尔滨3维地理信息系统建设在国内起步较早,是基于Citymaker 3维技术开发而成的。在系统建设过程中,我们逐步摸索出适合哈尔滨城市建设的3维地理信息系统模式。本文简要介绍了在哈尔滨3维地理信息系统平台基础上开发而成的"哈尔滨城乡规划科学决策系统"的管理模式及应用成果,列举了国内3维城市建设出现的问题。 相似文献
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警用地理信息系统是公安信息化建设的重要依托,本文根据城市警用地理信息系统建设规范,对警用地理信息基础平台展开设计。从数据层、服务层和业务层3方面分别进行阐述,构建3个数据库,搭建3种不同的服务集,探讨了6个主要的警用地理信息系统功能模块,实现了PGIS在不同区域的互联互通,为下一步开发PGIS平台的业务应用系统提供决策依据。 相似文献
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本文在合肥市金土工程试点建设的背景下,通过对合肥市建设用地报批业务的分析和梳理,建立了建设用地报批管理业务模型和工作流程,完成了合肥市建设用地管理系统的设计与开发,并对系统的应用情况做了简要的介绍,对系统应用中存在的实际问题,提出了完善的建议措施。 相似文献
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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
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Monitoring drought dynamics in the Aravalli region (India) using different indices based on ground and remote sensing data 总被引：5，自引：0，他引：5
C. Bhuiyan R.P. Singh F.N. Kogan 《International Journal of Applied Earth Observation and Geoinformation》2006,8(4):289-302
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
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Piyoosh Rautela Ramesh Chandra Lakhera 《International Journal of Applied Earth Observation and Geoinformation》2000,2(3-4)
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
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ZHAN F. Benjamin 《地球空间信息科学学报》2011,(1)
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
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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
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自动车辆定位导航系统中传感器的误差分析 总被引：1，自引：0，他引：1
对国界定位导航系统中几种常见的辅助传感器所产生的误差进行了分析，导出了不同传感器的误差模型。这些误差模型是估计车辆位置的扩展卡尔曼滤波器的基础，同时也为选择适当的传感器提供了理论根据。 相似文献
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“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
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《International Journal of Digital Earth》2013,6(1):66-87
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