共查询到20条相似文献，搜索用时 906 毫秒
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分析研究了哈尔滨市群力新区3维地理信息平台的总体设计,从平台搭建思路、平台建设的技术路线、平台建设原则及标准体系建设、总体框架及平台安全和数据更新及维护方面做出了阐述。 相似文献
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智慧城市时空信息云平台被视为一种开放式的GIS平台,开放性保证了平台的个性化、普适化、可扩展化等特性,同时也能够满足多用户间资源共享和协作办公的需求。本文从开放式平台的结构开始研究,萃取出实现开放式平台的关键技术,并针对GIS平台的特殊性,对时空信息云平台开放性核心技术OpenMap进行了实现。 相似文献
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针对不动产统一登记平台建设问题,该文以江西省,不动产登记平台建设为例从多源不动产登记信息数据的整合、不动产统一登记平台设计与实现两个方面开展。对土地、房产、草原、林地、海域等多行业的数据进行整理、整合,形成统一的不动产登记数据库。平台总体框架由基础保障系统、不动产历史数据库、共享服务平台、数据管理平台、政务基础平台、登记信息管理平台、登记信息公示平台7部分组成。 相似文献
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本文分析在建立城市管网地理信息系统中GIS平台选择应考虑的因素,对美国ArcGIS平台和GTechnol- ogy平台进行了性能比较,进而为用户进行GIS平台的选择提出推荐意见。 相似文献
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海南国际旅游岛地理信息公共平台根据面向服务对象的不同可分为政务版平台和公众版平台,其总体架构、功能设计以及实现的关键技术基本上是一致的。首先简单介绍了平台的总体架构以及2个特别的功能设计,然后详细阐述实现平台的几个关键技术。 相似文献
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自然资源管理职责的整合,要求自然资源信息化平台具有更加全面有效的数据服务能力、平台支撑能力和业务协同能力.本文以新疆国土空间基础信息平台建设为例,系统阐述了平台的建设思路:制定数据管理、平台建设及平台对接等相关的标准规范;构建自然资源一体化数据库;以空间大数据基础框架为平台底盘,建设云资源管理服务系统及平台支撑系统,最终实现全疆自然资源数据的集成管理与共享交换,提升新疆自然资源信息化管理能力,助力自治区经济社会全面协调可持续发展. 相似文献
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本文介绍了海南国际旅游岛政务版地理信息公共平台的总体架构,从平台数据集、平台软件系统和运行支撑环境三个方面阐述平台的建设内容。 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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“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
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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