Lamprophyric intrusions of probable carbonatitic affinity from South Australia     

D. H. Tucker  K. D. Collerson 《Australian Journal of Earth Sciences》2013,60(3):387-391

Primary carbonate‐bearing lamprophyric rocks have been recognised in the Walloway Diapir, South Australia. Their petrography and trace‐element geochemistry indicates that they have carbonatitic affinities. The rocks are magnetic and can be detected by ground magnetometer surveys.  相似文献   

移动测量系统交通标志自动提取的设计与实现     

范冲  王大鹏 《测绘与空间地理信息》2013,36(7):19-21,25,44

面对移动测量系统海量的数据,人工获取交通标志类型效率低下,本文提出基于移动测量系统的交通标志自动提取解决方案。首先,分析了移动测量系统交通标志图像的特点,在此基础上提出了合适的交通标志自动检测和识别的方法;然后,设计了交通标志自动提取流程;最后,以上述理论为基础设计实现交通标志自动提取模块,包括自动提取模块的数据库设计和功能设计,系统实验表明该系统可以大大提高交通标志提取的效率,降低作业成本。  相似文献   

基于Panorama Studio的街景网络快速发布关键技术研究   总被引：1，自引：0，他引：1  

王春晓  韩雪华  陈玉莹  熊小青 《测绘与空间地理信息》2013,36(7):22-25

街景影像与电子地图、遥感影像结合提供给人们一种多尺度、多视角认识地球的新途径。本文探讨了移动测量车、手持相机全景影像的获取方法、基于Panorama Studio的全景影像拼接方法,以及网络环境下全景影像的发布,结合ArcGIS Server发布的地图,探讨了基于JavaScript的街景与地图交互等关键技术,形成一整套全景影像获取、拼接、发布技术流程。在此基础上实现了高速公路带状地形图街景网站的原型设计。  相似文献   

智慧城市的理论与落地建设     

石伟伟  杨桂菊  肖开能 《测绘与空间地理信息》2013,(Z1):83-87

指出智慧城市=数字城市+物联网+云计算+智慧应用,智慧应用是智慧城市的落脚点。分析总结了智慧城市与数字城市相比的3个共同点和5个不同点,提出了智慧应用与数字应用的区别,并指出物联网、云计算、二三维一体化GIS技术、移动GIS技术是当前智慧城市建设的4大技术特征。文中还介绍了Supermap两个中心(云服务中心和城市运行管理中心)+n个应用的智慧城市务实解决方案。  相似文献   

A stream-based Parasitic Model for implementing Mobile Digital Earth     

《International Journal of Digital Earth》2013,6(1):38-52

A Parasitic Model is proposed in this study for Digital Earth running on mobile phones through a mobile network. Because of mobile phones' limited capabilities in high-performance computing, rendering, storing, and networking (CRSN), these functions are accomplished by a superior host computer in this model. Rendered virtual scenes are compressed in a time-series as a data stream and are sent to the mobile phone through a mobile network, thus allowing Digital Earth to be operated on a mobile phone. This study examines a prototype and shows that a Mobile Digital Earth based on a Parasitic Model can achieve functionality beyond the mobile phone's actual hardware capabilities and can reduce network traffic. These results demonstrate quasi-real-time interactions, but with bandwidth increases in next-generation mobile networks such as 4G and 5G, there is potential for real-time interactions in the near future.  相似文献   

Quantitative Methods and Applications in GIS     

Wei Tu 《The Professional geographer》2013,65(3):434-435

  相似文献   

High-Resolution Measurement and Analysis of Visitor Experiences in Time and Space: The Case of Aalborg Zoo in Denmark     

Amit Birenboim  Kristian Hegner Reinau  Noam Shoval  Henrik Harder 《The Professional geographer》2013,65(4):620-629

The notion of consumer and user experience has become dominant in our society in recent years, especially in relation to leisure activities. In this study we used the experience sampling method (ESM) data collection technique in Aalborg Zoo, Denmark, to understand the distribution of subjective experiences within this site. Visitors to the zoo were asked to send phone messages (SMS) about their subjective feelings in real time and to carry with them Global Positioning System (GPS) devices that recorded their movement. This method allowed us to geotag experiences of visitors throughout the zoo compound. The results indicate that the quality of experience of visitors varies both in time and in space. We conclude that there is a need to further explore the effect of place on experiences using repeat, high-resolution measurements. In this regard we believe that geographers, who have a long tradition of studying human–environment relations, have the tools to lead this type of exploration.  相似文献   

Symposium On Sediment Storage In Rivers And Estuaries     

《The Professional geographer》2013,65(4):487-488

Book Reviewed in this article:

Geographical Aspects of Health and Disease in India. Rais Akhtarand A.T.A. Learmonth, eds.

Antarctic Treaty System: An Assessment. Proceedings of a Workshop at Beardmore South Field Camp, Antarctica.

American Electoral Mosaics. J. Clark Archerand Fred M. Shelley.

Kompas op Suidwes-Afrika/Namibie. W.S. Barnard, ed.

Jerusalem in the 19th Century: The Old City. Yehoshua Ben-Arieh.

The World as a Total System. Kenneth E. Boulding.

A Social History of Housing 1815–1985, Second Ed. John Burnett.

Human Migration. W.A.V. Clark.

Regional Population Projection Models. Andrei Rogers.

The State of Population Theory: Forward from Malthus. David Colemanand Roger Schofield, eds.

Imagining Tomorrow: History, Technology and the American Future. Joseph C. Corn, ed.

Swidden Agriculture in Indonesia: The Subsistence Strategies of the Kalimantan Kantú. Michael R. Dove.

Glacial Geologic Processes. David Drewry.

Physics of Desertification. Farouk El-Bazand M.H.A. Hassan, eds.

Housing the Homeless. Jon Ericksonand Charles Wilhelm, eds.

Settlement Patterns in Missouri: A Study of Population Origins, with a Wall Map. Russel L. Gerlach.

Desert Development: Man and Technology in Sparselands. Yehuda Gradus, ed.

Nuclear Winter. The Evidence and Risks. Owen Greene, Ian Percivaland Irene Ridge.

The Take-off of Suburbia and the Crisis of the Central City. Günter Heinritzand Elisabeth Lichtenberger, eds.

Regional Input-Output Analysis. Geoffrey J. D. Hewings.

Spatial Transportation Modeling. Christian Werner.

The Atlas of Georgia. Thomas W. Hodlerand Howard A. Schretter, eds.

Latin America. 5th ed. Preston E. Jamesand C.W. Minkel.

Applied Remote Sensing. C.P. Lo.

Localities, Class, and Gender. The Lancaster Regionalism Group.

Urban Social Movements: The City after Castells. Stuart Lowe.

Politics and Method. Doreen Masseyand Richard Meegan, eds.

Land Use. A. S. Mather.

The Kingdom of Coal. Donald L. Millerand Richard E. Sharpless.

The Presidio and Militia on the Northern Frontier of New Spain, A Documentary History, Vol. 1: 1570–1700. Thomas H. Naylorand Charles W. Polzer, S.J., comps. andeds.

Nuclear Power: Siting and Safety. Stan Openshaw.

The Central African Republic: The Continent's Hidden Heart. Thomas O'Toole.

Environmental and Dynamic Geomorphology. Márton Pécsi, ed.

Remote Sensing Principles and Interpretation. Floyd F. Sabins, Jr.

Acid Rain and Friendly Neighbors: The Policy Dispute between Canada and the United States. Jurgen Schmandtand Hilliard Roderick, eds.

Earth's Changing Surface: An Introduction to Geomorphology. M.J. Selby.

International Migration: The Female Experience. Rita J. Simonand Caroline B. Brettell, eds.

On Geography and Its History. D.R. Stoddart.

Transportation Networks: A Quantitative Approach. D. Teodorovic.

Processes in Physical Geography. R.D. Thompson, A.M. Mannion, C.W. Mitchell, M. Parry, J.R.G. Townshend.

Imaging Radar for Resources Surveys. J.W. Trevett.

Dominance and Affection: The Making of Pets. Yi-Fu Tuan.

Capturing the Horizon. The Historical Geography of Transportation since the Transportation Revolution of the Sixteenth Century. James E. Vance, Jr.

Nations at Risk: The Impact of the Computer Revolution. Edward Yourdon.  相似文献   

A Manifesto on Mobile Computing in Geographic Education*     

《The Professional geographer》2013,65(4):506-515

Abstract

Mobile, location-aware computing technology is widely available. In this article we sketch out a manifesto on mobile computing in geographic education (MoGeo) for consideration and debate within the geographic community. At the core of our argument is the idea that emerging mobile computing technologies will allow teachers to bring the classroom and pedagogic materials into the field, and that the resulting in situ educational experience will enhance learning by contextualizing the complex and abstract concepts that we teach. We provide a set of key principles that can guide the development of field experiences for students using these new technologies.  相似文献   

青岛城市道路邻近中心性及其应用方法   总被引：1，自引：0，他引：1  

王瑶莉  高松  刘瑜 《地理研究》2013,32(3):452-464

以青岛为实证研究区域,从理论角度探讨了道路全局和局部邻近中心性的地理含义及其各自优缺点,认为全局邻近中心性(GCC)反映的是网络上各点到网络“质心”的距离,可从全局角度反映区位重要性;局部邻近中心性(LCC)反映小范围空间区域的重心,与局部路网密度相关。进一步根据核密度估计(KDE)的机理证明,在城市地理空间结构的实际应用案例中适宜采用KDE法来进行空间分析。本文以手机话务量数据反映的城市居民活动空间结构为例讨论了邻近中心性核密度估计(CC-KDE)的应用,发现与居民活动相关性最高的是核密度全局邻近中心性(GCC-KDE),因为全局邻近中心性核密度估计(GCC-KDE)综合了到网络“质心”距离与道路网络局部密度双重因素,故反映城市人口等与道路密度相关的社会经济现象更有效。  相似文献