共查询到20条相似文献，搜索用时 46 毫秒
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进入21世纪,以县、市、区为行政单元的区域性综合性地图集越来越多,这些图集虽然可以借鉴以省、市行政区域为制图单元的地图集已经形成的模式,但是由于制图区域的限制,在内容结构、信息表达方式、资料处理等方面有自己的特点。结合了《萧山区地图集》的设计与研制,对两种图集内容体系设计、资料选择和处理、地理信息表示方法异同进行论述,为今后编制市县区级综合性地图集在理论、方法和技术上提供参考。 相似文献
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一、地图集的内容结构和图幅构成 1.图集内容的选择原则众所周知,地图集的性质是由其用途和使用对象所决定的,综合性城市地图集(以下称图集)当然也不例外。为了使它能更好地为社会各界人士提供更多的有用信息,除了要求在图集 相似文献
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景红霞 《测绘与空间地理信息》2015,(6):170-172
《甘肃政务专用图集》是一本为政务应用提供地图保障服务的综合性地图集。本文主要介绍了该图集的设计思路、规格、编制内容、编制的技术流程以及编绘方法等,并总结了图集编制的特点和意义。 相似文献
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以《广西历史地图集》总体设计及样图制作为例,对历史地图集优化设计与表达方法进行了研究和探讨。实践证明,优化地图设计可有效提高历史地图集的艺术美感,为《广西历史地图集》的编制出版及今后各类历史地图集的设计提供了有益的经验和参考。 相似文献
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《中国林业地图集》介绍罗漾明（长沙市林业部中南调查规划设计院４１００１４）概述由林业部组织编纂的一本大型综合性专题地图集─—《中国林业地图集》，已由测绘出版社出版。该图集是我国首次公开出版的林业综合性图集，内容新颖而丰富，全面系统地反映了当前我国林业... 相似文献
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徐丽坤 《测绘与空间地理信息》2012,(7):184-186
对于专题地图集而言,图集的内容和结构是决定图集质量的关键要素,也是抓住人们眼球的重点。《鄂西生态文化旅游圈地图集》(以下简称《鄂西圈图集》)不仅是跨行政区域的地图集,而且在内容上不同于一般意义上的综合性专题地图集,它以"生态、文化、旅游"专题为主要内容,这在全国范围内是少见的,具有一定的开创性。本文通过总结《鄂西生态文化旅游圈地图集》专题内容确定的过程和结果,阐述了编制图集过程中选题的重要性,需要与时俱进,抓住特色,突出重点,勇于创新。 相似文献
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多媒体电子地图集与传统纸质地图集的设计制作相比,在设计理念、内容组织和编制方法等方面都有若干的继承和创新,多媒体电子地图集的总体设计是多媒体图集产品编制的基点和核心。本文通过分析多媒体电子地图集与传统纸质地图的若干差异,解析多媒体电子地图集设计的诸多关键,并对其总体设计进行系统的阐述。 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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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
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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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随着城市面貌日新月异,地下管网的建设也在持续推进,作为城市的地下“神经网络”,全天24 h保障城市的正常运转和发展。本文以实现城市管网管理系统的高可用、无插件、智能化为目标,采用“地上地下一体”“二三维一体”的设计理念,研究基于WebGL的三维智慧管网系统的关键技术,实现了管线设施管理的信息数字化、空间化与图形化。 相似文献