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Integration of thematic maps through GIS for identification of groundwater potential zones 总被引:1,自引:0,他引:1
K. S. R. Murthy E. Amminedu V. Venkateswara Rao 《Journal of the Indian Society of Remote Sensing》2003,31(3):197-210
The remote sensing data combined with Geographical Information System (GIS) technique has been proved to be very efficient in identification of groundwater potential of any area. In the present paper, IRS 1 A, LISS II data has been used to identify the groundwater potential zones by integrating various thematic maps generated on 1:50,000 scale. These maps are integrated after assigning weight factors to the identified features in each thematic map depending upon their infiltration capacities and the groundwater potential zones in Bhamini mandai (developmental block) of Srikakulam district, Andhra Pradesh are demarcated. The area of investigation has been classified into seven groundwater potential zones. The present results show that integration of all attributes provides more accurate results in groundwater potential zones identification. 相似文献
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将网格技术应用于地理信息领域,构建实现地理信息资源共享与协同工作的网格地理信息系统,是目前地理信息行业研究的热点之一。OGC制定的网络服务规范作为得到广泛支持的地理空间数据互操作规范。与网格技术的相关规范存在许多不兼容之处,使得OGC服务在网格体系下难于集成和管理。文章研究了OGC数据服务WMS,WFS和wCS的相关规范和OGSA—DAI网格中间件技术,提出将OGC数据服务扩展为OGSA—DAI的数据资源的方案,将WMS,WFS和WCS封装为符合WSRF的网格资源,实现分布式异构地理空间数据在OGSA—DAI框架下的访问、集成与管理。此方案提供了一种将OGC服务集成到网格环境中的方法,比较容易实现,对相关研发工作的开展具有很好的借鉴作用。 相似文献
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基于GIS和元胞自动机的荒漠化演化预测模型 总被引:19,自引:1,他引:18
荒漠化是当今全球最严重的环境与社会经济问题之一 ,荒漠化以其发展速度和严重的灾害性而引起国际学术界的广泛关注。开展荒漠化变化的驱动因素及其作用机制研究 ,尤其是在此基础上对荒漠化与其驱动因素之间的关系进行量化及动态模拟模型研究 ,对荒漠化的防治和治理具有十分重要的意义。尝试利用3S技术 ,结合元胞自动机理论架构出一套荒漠化动态模拟模型 ,进而对北京及邻区荒漠化的发展趋势进行预测。实验证明 ,这套系统是对荒漠化演化机制从宏观和微观角度进行模拟的有效方法。 相似文献
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地理信息系统基础软件吉奥之星NT版的总体设计思想与关键技术 总被引:7,自引:1,他引:6
介绍了新一代面向对象的GIS基础软件系统吉奥之星NT版的总体设计思想、系统结构、功能特点和有关关键技术。 相似文献
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沿海地区DInSAR形变探测:精度与可应用性分析 总被引:2,自引:0,他引:2
卫星合成孔径雷达差分干涉在区域地表形变探测方面已表现出极好的应用前景。以我国沿海地区的2个典型实验区(即香港新机场和台湾西部地震区)作为研究对象,使用卫星ERS-1/2所获取的多幅SAR影像来探测香港填海地基沉降和台湾地震形变,与地面水准和GPS数据比较,评价干涉结果的实际观测精度,最后分析干涉雷达在沿海地区应用的局限性,并指出潜在的解决途径。 相似文献
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GIS软件测试方法研究 总被引:1,自引:0,他引:1
软件测试是软件质量保证的重要前提,但是对GIS软件的测试研究目前进行地较少。通过对GIS软件的特点的分析,结合GIS软件测试工作的经验,提出了对GIS软件进行测试的方法和策略。 相似文献
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黄波 《武汉大学学报(信息科学版)》1995,20(1):35-39
为解决控制性规划管理中项目咨询、审批和管理问题,探讨了ES与GIS结合的可能性,提出了ZOMAN的系统原型,介绍了ZOMAN的系统结构,并以温州市为例,说明了它的应用。 相似文献
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RS与GIS一体化数据结构的研究 总被引:1,自引:0,他引:1
详细阐述了RS与GIS一体化的概念,通过对RS与GIS一体化方面的研究与分析,进一步明确RS与GIS一体化对空间数据存储结构的要求,着重探讨了几种典型的用于RS与GIS一体化的数据结构,针对现有数据结构存在的问题与不足,提出了一种具有普遍适用价值的基于语义网络的空间数据存储结构,并给出一个应用实例。 相似文献
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传统的采矿方法选择大多由采矿专家基于二维图件进行,可视化程度不高且具有一定的主观随意性。本文研究了基于GIS技术,运用3DMine,3DMax,Super Map软件,以及二维地形地质数据构建矿山地质体三维模型的方法和过程,包括地表及矿体的三维模型,实现二三维一体化的地下矿体环境;并在上述搭建的三维可视化环境下,采用模糊数学法和层次分析法等数学理论进行采矿方法选择,使采矿方法选择的过程更直观,结果更准确。 相似文献
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Traditionally, areal interpolation has referred to techniques for transferring attribute values from one partitioning of space to a different partition of space but this is only one of several situations that create the need for estimating unknown data values for areal units. This paper presents a categorization of four areal interpolation problems that includes the "missing" data problem, the traditional "alternative geography" problem, the overlay of a choropelth and an area-class data layer, and the overlay of two choropleth data layers and demonstrates the relationship between the last three problems and general spatial interaction modelling. The "alternative geography" and overlay of choropleth and area-class data layers mirrors a singly constrained spatial interaction model while the overlay of two choropleth layers is analogous to a doubly constrained interaction model. Iterative proportional fitting techniques with and without ancillary data are developed to solve these three classes of problems. 相似文献
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Md Soyeb Alam Dheeraj Kumar R. S. Chatterjee Vijay Upreti 《Journal of the Indian Society of Remote Sensing》2018,46(10):1569-1580
Differential interferometric synthetic aperture radar (DInSAR) is a novel remote sensing technique to measure earth surface deformation. It is capable of obtaining dense information related to the deformation of a large area efficiently, economically and effectively. Therefore, DInSAR is a promising technology for monitoring the earth surface deformation related to some natural hazardous events, such as earthquake, volcano eruption, land subsidence, landslide. In present study, Conventional DInSAR technique have been applied to a mineral rich zone, coming under the Khetri copper belt, a part of Northern Aravali range of hillocks in India, predominant with mining activities since late 1960’s to address the possibility of deformation phenomena due to hard rock underground metal mining. Four interferometric SAR data sets of Radarsat-2 was used for the study area to address the subsidence/uplift phenomena. Further, results obtained from conventional DInSAR technique using Radarsat-2 data sets compared with results obtained from ground based observation technique for its validity. In both the techniques, deformation results obtained in terms of average subsidence rate in mm (quarterly basis) of points under study within mining zone of Mine-A has well agreed to each other. Further, it has been observed that average subsidence rate in mm (quarterly basis) obtained from space based observation and ground based observation are 5.6 and 6.67, respectively over the points under study in mining zone of Mine-A. 相似文献
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