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本文结合国外情况，介绍了ＧＩＳ的应用现状，探讨了ＧＩＳ的未来发展趋势，对ＧＩＳ在我国的应用和发展提出了几点建议，论述了ＧＩＳ对测绘事业发展的作用。 相似文献
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九十年代GIS软件系统设计的思考 总被引：31，自引：0，他引：31
ＧＩＳ应用领域的拓宽与计算技术的进步，对ＧＩＳ的系统设计不断提出新的挑战。本文站在发展角度，讨论了矢－栅一体化的概念，数据结构的功能设计，ＳＱＬ语言局限性，面向对象技术的应用，ＧＩＳ全局检索以及ＧＩＳ智能化等问题，作者认为采用面向对象技术实现多数据类型的混合操作，是ＧＩＳ登越决策应用阶段的技术关键。 相似文献
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法国德国芬兰三国ＧＩＳ技术及其应用现状考察报告（续）杨明辉（中国测绘科学研究院）二、ＧＩＳ在城市发展和工程中的应用这次对欧洲三国的考察，重点是要了解欧洲国家ＧＩＳ的应用水平，特别是在城币发展中的应用。因此，除了对法国地理院、下萨克森州测量局和地籍局、... 相似文献
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多媒体地理信息系统（MGIS）的设计及其应用 总被引：8，自引：1，他引：8
本文分析了ＧＩＳ和多媒体技术的发展现状，论述了多媒体技术在ＧＩＳ中应用的可行性和必要性。对多媒体ＧＩＳ的概念、结构、功能及其应用前景进行了探讨，并设计了多媒体地理信息系统的框架。 相似文献
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时态GIS的概念,功能和应用 总被引：4，自引：0，他引：4
现今的ＧＩＳ大多没有经济合理的数据更新机制，不能模拟和预测地理系统随时间的变化。近几年发展起来的时态ＧＩＳ旨在处理地理信息中的时间成分，已成为ＧＩＳ研究和应用的重要领域之一。本文介绍时态ＧＩＳ的概念、功能和应用。 相似文献
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时态GIS的概念、功能和应用 总被引：10，自引：0，他引：10
现今的ＧＩＳ大多没有经济合理的数据更新机制，不能模拟和预测地理系统随时间的变化．近几年发展起来的时态ＧＩＳ旨在处理地理信息中的时间成分，已成为ＧＩＳ研究和应用的重要领域之一．本文介绍时态ＧＩＳ的概念、功能和应用． 相似文献
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ARCVIEW支持下的燕山石化规划管理信息系统的建立 总被引：1，自引：0，他引：1
ＧＩＳ技术应用于大中城市规划管理信息系统在我国已有十余年历史。随着计算机技术发展,桌面地理信息技术的成熟,把ＧＩＳ技术引入小城市及大中型企业规划管理部门,显得十分必要。本文基于此做了些有益的尝试。 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