共查询到20条相似文献，搜索用时 390 毫秒
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对GPS-RTK技术作了相应阐述,并通过实际成果对其在地质勘查工作中的精度作出了对比分析,对RTK技术在地质勘查方面的应用加以总结,展现了RTK测量技术在地质勘查领域的广阔应用前景。 相似文献
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高光谱矿物填图技术与应用研究 总被引：11，自引：0，他引：11
回顾和总结了"九五"以来,中国国土资源航空物探遥感中心在高光谱矿物识别和矿物填图领域所取得的成果,包括主要岩矿光谱特征与影响因素分析;矿物的种类识别、丰度反演和成分识别;中—热红外多/高光谱的数据处理和矿物识别;高光谱矿物识别的地质应用模式、矿物填图的工作方法和技术流程、矿物填图的技术体系;矿物填图在区域地质找矿、矿区勘查和成矿与找矿模型、植物地球化学探测、矿山环境监测以及月球和行星探测等方面的应用示范。最后,提出了高光谱矿物填图近期的研究方向。 相似文献
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遥感地质技术发展的战略思考 总被引：7，自引：2，他引：5
通过对遥感技术和遥感地质发展现状和发展趋势的分析,以经济和社会可持续发展对矿产资源、能源和地质信息的重大需求为牵引,以地质理论、地球系统理论和复杂性科学理论为指导,围绕地质工作的地质矿产调查、地质灾害和环境监测、矿山开发和环境监测的三大战略任务,提出建设和发展地质矿产和能源遥感勘查和评价技术系统、地质灾害和地质环境监测技术系统及业务运行系统、矿山开发和矿山环境监测技术系统及业务运行系统三大应用技术系统和卫星数据采集与地质应用服务系统、全数字化综合航空遥感集成与信息服务系统两大信息服务系统的遥感地质发展战略目标.促进和实现遥感地质分析由定性向定量,遥感地质应用由单技术向技术集成,地质服务由数据向数据、技术和信息的综合服务方向发展和转化.提出了近期和中期重点发展的技术和重点研究领域,讨论了它们的研究现状、存在问题、研究重点和需进一步深入研究的关键技术问题. 相似文献
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黄建学 《测绘与空间地理信息》2014,(11)
随着时代的发展,GPS－RTK作为GPS测量技术发展的新突破广泛应用于地质勘查。本文通过对GPS－RTK技术的分析,简要介绍了GPS－RTK技术工作原理及工作流程,阐述了GPS－RTK的技术特点,并结合测量工程实例探讨了GPS－RTK技术在地质勘查中的应用,并指出GPS－RTK技术在地质勘查中的优势以及其在实际应用中应注意的问题,使其得到了更为广泛的推广和应用。 相似文献
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本文主要介绍了加拿大地调局矿产地学计划未来的发展方向,勘查技术计划的发展和思路,城市地质工作的进展和特点,靶区地学开创性计划,以及地质填图计划。 相似文献
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本文首先从建立地质勘查业务模型入手,对地质勘查工作手段的多样性和复杂性,以及对地质勘查数据的多源性和异构性进行分析,构建完成了一套相对完整实用的地质勘查信息系统。最后从实际应用的角度,阐述了地质勘查数字化与信息建设的研究意义,以及今后的研究与发展趋向。 相似文献
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姜川 《测绘与空间地理信息》2018,(6):144-146
通过对山东省莱州-招远地区金矿整装勘查区范围内地质空间资源进行分析研究,以三维地理信息技术为支撑,以"一个平台,两个市场"框架为基础,以研究区域的地质空间资源为抓手,构建三维地质空间资源综合管理平台,实现地质空间资源"一张图"管理,打破了传统纸介质和平面成果的展示模式无法形象、直观地展示地下空间环境的现状,为山东省地质勘查工作管理与部署提供基础平台。 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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Toward seamless indoor-outdoor applications: Developing stakeholder-oriented location-based services
Kohei OGAWA Edward VERBREE Sisi ZLATANOVA Naohiko KOHTAKE Yoshiaki OHKAMI 《地球空间信息科学学报》2011,14(2):109-118
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
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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