基于RTK配合测深仪技术测算库容精度探讨     

阳凡林  孔祥元 《测绘工程》2002,11(1):38-41

通过对某大型水库库容的测算实践为例，详细地讨论了基于GPSRTK配合测深仪测算水库库容的主要误差来源及其精度。  相似文献   

Conference Reports     

《The Photogrammetric Record》2002,17(99):505-511

18th International Symposium of Cipa by D. M. Barber, p.505
48th Photogrammetric Week by A. T. Smart, p.506
5th Conference on Optical 3D Measurement Techniques by G. Hunter, p.509  相似文献   

Book Review     

《The Photogrammetric Record》2002,17(99):523-547

Books reviewed:
S. Openshaw and R. J. Abrahart, Geocomputation
M. Craglia and H. Onsrud, Geographic Information Research: Transatlantic Perspectives
P. J. Halls, Spatial Information and the Environment
J. Sievers and T. Schneider, Second International Symposium on Geographical Names: Geonames 2000
J. C. Leachtenauer and R. G. Driggers, Surveillance and Reconnaissance Imaging Systems: Modelling and Performance Prediction
P. A. Longley, M. F. Goodchild, D. J. Maguire and D. W. Rhind, Geographic Information Systems and Science
Y. Q. Chen and Y. C. Lee, Geographical Data Acquisition
K. Borre, Plane Networks and their Applications.
A. Hirschfield and K. Bowers, Mapping and Analysing Crime Data: Lessons from Research and Practice
O. Koelbl, Proceedings of the Oeepe Workshop on Automation in Digital Photogrammetric Production
RICS Books, Vertical Aerial Photography and Derived Digital Imagery: Client Specification Guidelines
D. E. Reeve and J. R. Petch, Gis Organisations and People: A Socio-Technical Approach  相似文献   

A NEW RECEPTOR MODEL:A DIRECT TRILINEAR DECOMPOSITION FOLLOWED BY A MATRIX RECONSTRUCTION     

PHILIP K.HOPKE 《地理学报(英文版)》1992,(2)

In many cases,monitoring data for ambient airborne particles can be organized in the form of a three-way data table with one way for chemical species,one for sampling periods and one for sites.A directtrilinear decomposition followed by a matrix reconstruction(DTDMR)is developed to analyze such adata table as a whole.The three-way data set is composed into three two-way matrices by a direct trilineardecomposition(DTD).The column vectors of each of the matrices are called‘source profiles’,‘emissionpatterns’and‘site coefficients’respectively.Particulate sources are identified by examining both theirsource profiles and emission patterns.After the sources have been identified,emission patterns and sitecoefficients are used to produce a three-way matrix that gives estimates of mass contributions of sourcesto the samples collected at every site in every period.By simulation study,not only has the method beenverified,but a good indicator has been found that shows the number of factors(i.e.sources)in thesystem.Unlike other receptor models,DTDMR does not require source profile data and does not involvetrial-and-error procedures.Since DTDMR identifies sources based on variations in two dimensions,it hasa higher potential to distinguish two sources that have similar chemical compositions.The DTDMRmodel has provided excellent results with simulated data and has been applied in a real world three-waydata set.  相似文献   

云南蒙自五里冲水库区F1,F2断层新活动年代研究   总被引：1，自引：0，他引：1  

陈惠珠 《地震研究》1991,14(4):347-357

五里冲水库地处侵蚀山区,缺乏第四纪地层作为研究断层新活动年代的对比标志。本文以F_1、F_2断层带内发育的多期方解石脉和断层泥为研究对象,采用显微构造分析,热释光(TL)测年法和扫描电镜(SEM)分析,石英溶蚀速率测年法,对库区F_1、F_2断层新活动的年代进行综合判定。确认:F_1、F_2断层最后一次明显活动的年代分别为(2.93±0.31)×10~5年和(2.33±0.26)×10~5年以前,为评估五里冲水库构造稳定性,提供了可靠的数据。  相似文献   

平原地区活断层研究   总被引：3，自引：0，他引：3  

王华林  李家灵 《地震研究》1991,14(2):132-140

本文归纳、总结了近几年来山东省地震局在工程地震工作中采用的平原地区活断层研究的方法。几个典型实例证明,这一方法在平原地区活断层研究中是行之有效的,获得了良好的、具有科学价值的结果,同时讨论了与这一方法有关的几个问题。  相似文献   

新疆石河子南山洼地地下水库及开发利用建议   总被引：3，自引：0，他引：3  

王英得 《水文地质工程地质》1993,20(4):48-49

本文描述了石河子南山洼地中库容量为140×10~8m~3的地下水库,并提出建立水源地开采14m~3/s流量地下水的建议。  相似文献   

模糊识别的隶属原则及其应用     

罗晓峰 《新疆地质》1993,(1)

由于模糊识别之最大隶属原则,在实际应用中存在着某种上程度上的不足。本文提出了加势隶属原则、积势隶属原则及加权加势隶属原则、加权积势隶属原则。以此可综合考虑各种变量因素,并在最大限度上综合利用各种变量因素间的信息,以达到模糊识别的最佳效应。  相似文献   

关于滕县煤田太原组的“火山碎屑岩”：与王永平同志商榷   总被引：2，自引：0，他引：2  

房庆华  徐榜荣 《煤田地质与勘探》1992,20(2):6-9

叙述了滕县煤田太原组的沉积特征,分析了主要碎屑矿物的标型特征以及该组砂岩在物质成分、结构及沉积构造等方面与火山碎屑岩的差异,认为滕县煤田太原组基本上没有所谓“火山碎屑岩”。还对火山碎屑岩的命名提出了看法。  相似文献   

电子探针快速自动定量矿石中矿物的方法研究     

欧阳菲  潘法忠 《岩矿测试》1991,10(4):267-270

利用电子探针、能谱仪、扫描电镜和计算机等一整套仪器,对组成矿石样品中有用矿物的含量进行定量统计。既能准确识别矿物又能精确统计各矿物在矿样中的面积百分含量(面积法)。  相似文献