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中国地质调查局研发的区域地质调查计算机填图系统(RGMAP)(以下简称数字填图系统)于2006年在全国范围内新开展的区调项目中全面推广应用.此系统与传统填图方法相比有着不可比拟的优势,但仍存在一些问题.文章针对数字填图系统在实际应用过程中存在的一些问题,提出相应的解决方法及建议. 相似文献
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经中国地质调查局批准,作为示范试点,河南省地质调查院在今年新开的《1:25万枣阳市幅、信阳市幅区域地质调查》项目中首次采用数字填图技术。数字填图技术是集GIS、GPS、RS和计算机技术为一体的现代地质工作重要方法和技术手段。其核心是对多源地学空间信息的数据采集、存储、检索、分析、表达等实现全流程数字化。该项新技术的应用,标志着我国地质调查工作进入了一个崭新的阶段,开始了传统地质工作的数字化革命。 相似文献
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本文阐述了遥感、物探、地质等多地学数据的综合应用技术和方法。作者从多源遥感数据在铀资源勘查中的应用特点出发,充分利用了铀矿地质的特色信息--航空放射性伽玛能谱(航放)信息,进行了信息融合,开发多光谱遥感、雷达遥感、高光谱遥感、航放四种信息融合的MR、MSR、HSR融合图像。在此基础上,将融合图像的解译成果与重力、磁力、地化、地质等其他地学信息进行复合分析,从而建立了具核工业特色的光-能谱集成技术系统。利用该系统在植被覆盖的花岗岩、火山岩和沉积盆地地区进行了地质填图和铀矿找矿应用,取得了很好的应用效果。 相似文献
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随着社会不断发展,网络数字测图系统得到进一步的改进和完善,在GPS与PDA技术基础上,该系统已经逐渐向数据采集方面工作。随着地理信息技术不断发展,数字测图系统会完全实现GIS数据采集,提升工作效率。本文基于GPS与PDA技术使用下,对网络数字测图系统进行了研究。 相似文献
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地学信息图谱的研究及其模型应用探讨 总被引:8,自引:2,他引:6
地学信息图谱系以遥感与地理信息系统等新技术 ,充分发挥人脑的形象思维能力来解决资源环境问题。它是地学思维在新时代下的新发展 ,在地学研究中有重要的理论和实践意义。文章着重分析了地学信息图谱研究近况 ,并结合生态系统综合评估 ,论述了地学信息图谱在该领域的应用。 相似文献
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河南省基础地学数据库建设是国家“数字国土工程”的重要组成部分。基础地学数据库是实现地质调查信息化的基础,也是提高已有地质工作成果资料利用率的重要途径,是国家地质工作社会服务功能的重要体现。国家基础地学数据库以全国性基础与专业地学空间为基础,采用现代计算机技术、大型数据库管理技术、大型地理信息系统和多源一体化信息整合技术,按照不同的应用目标, 相似文献
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正Rapid changes of Arctic sea ice cover have been in the focus of the international climate research community in recent years.Quite a few of nations have completed a large number of related surveys and research projects in the Arctic Ocean.Up to now,China has performed six research cruises to the Arctic Ocean resulting in a significant volume of research output.Improved knowledge on the atmospheree-sea ice-ocean interactions in the Arctic is a 相似文献
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Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area. 相似文献
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The GRV 024516 and GRV 024517 meteorite samples collected from Grove Montains,Antactica are ureilite and H5 ordinary chondrite,respectively.Based on the study of mineralogy-petrology,the cosmic-ray exposure ages and gas retention ages of these two meteorites were determinated and calculated.Their cosmic-ray exposure ages are 33.3 Ma,51.7 Ma,and gas retention ages are 1936.8 Ma and 3720 Ma,respectively.The ureilite contains diamond,graphite and amorphous C,which are mainly carrier of noble gases indicating obviously shock metamorphism effects,which induced 40Ar partial loss.The H5 chondrite indicates thermal metamorphism of parent body,its gas retention age fall the range between 3220 Ma and 4510 Ma of the least shocked H5 chondrites 相似文献
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Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter. 相似文献
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《极地研究(英文版)》2014,(3)
正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprchensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose is to publish achievements in fundamental research,applied 相似文献
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《山地科学学报》2014,(4):I0004-I0009
<正>AIMS AND SCOPE(Editorial Policy)The Journal of Mountain Science(JMS)is devoted to mountains and their surrounding lowlands-ecoregions of particular global importance,with a particular emphasis on the important highlands/mountains in the world,such as the Tibetan Plateau,the Himalayas,the Alps,the Andes,the Rockies and many other mountain ranges of our planet. 相似文献
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《山地科学学报》2014,(4)
<正>The Journal of Mountain Science(JMS),founded in2004,is an international English-language journal on mountain sciences.JMS is supervised by the Chinese Academy of Sciences(CAS),sponsored by the Chengdu Institute of Mountain Hazards and Environment,CAS,published by Science Press China,and distributed by Springer exclusively throughout the world(excluding Mainland China).The JMS is published bimonthly,fulltexted in SpringerLink and CNKI,indexed/abstracted by 相似文献