共查询到20条相似文献，搜索用时 218 毫秒
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基于GIS的城市防震减灾信息系统设计 总被引：2，自引：0，他引：2
本文以地理信息系统系列工具软件为开发平台,采用先进的计算机数据库管理技术和可视化技术,设计了城市防震减灾信息系统,为政府部门进行城市震前、震时、震后的科学管理提供有力的辅助工具,为提高城市综合防震能力提供有效手段。文章采用了系统化设计思想,阐述了城市防震减灾信息系统的组成及其功能,并详细介绍了基础数据库的构建过程。 相似文献
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本文概述了福建省防震减灾信息系统的现状 ,指出在“数字福建”的总体架构下 ,利用“数字福建”丰富的信息资源和新技术、新方法建设防震减灾信息体系 ,可望使福建省防震减灾工作实现质的飞跃。 相似文献
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数字黑河的思考与实践2:数据集成 总被引：5，自引：2，他引：3
数据集成是流域集成研究的核心环节,是发展、改进和验证模型的基础。介绍了"数字黑河"数据集成研究的进展:①定义了数据集成;提出数据库集成应具有数据的完整性、可获取性和有效管理3个基本特征;而模型数据集可根据流域集成模型对科学数据的需求,概化为驱动数据、参数集、验证和诊断数据三大类。②进一步丰富和完善了"数字黑河"信息系统;扩展了黑河数据库,较为系统地收集了黑河流域的基础地理数据、各类观测数据、科学试验数据和现有的模型数据集,在线数据量已扩充至1 000 GB,并且广泛共享。③介绍了模型数据集取得的进展及目前存在的问题;发展了制备高分辨率驱动数据的统计和动力降尺度方法;依靠数据融合方法制备了适用于模型的黑河流域土地覆盖图和土壤图。④指出了数据集成所面临的挑战和需要优先完成的迫切任务,核心是以发展流域集成模型为导向,进一步完善"数字黑河"信息系统,并且制备高分辨率和可靠的模型数据集。 相似文献
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基于GIS与工作流技术的图文一体化地籍管理信息系统的设计 总被引：12，自引：0，他引：12
随着信息技术和互联网络的发展,传统的地籍管理信息系统已经不能满足土地管理部门的需要。通过对GIS技术和工作流技术的分析,确定了地籍管理信息系统的结构模型和功能模型。通过GIS与工作流的集成,达到地籍图、文、表信息的统一管理,建成图文一体化的地籍管理信息系统。 相似文献
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福建省地震重点视防御区城市防震减灾体系工程以中国地震局关于建立健全地震监测预报、震灾预防和紧急救援三大体系为主要目标 ,以国家和福建省确定的地震重点监视防御区为主要目标区 ,尤以切实加强重点监视防御内城市的防震减灾措施 ,强化城市对地震灾害的综合防御能力为主要建设内容。该项目得到中国地震局、福建省委、省政府和有关地市大力支持 ,已列为福建省“十五”重点项目 ,省委、省政府为民办实事重点项目 相似文献
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为解决济南城市轨道交通建设与地质环境、保泉供水及建构筑物之间的矛盾,实现泉水保护与轨道交通建设双赢,研发了三维城市地质信息管理与应用系统。根据济南泉域富水岩溶的特点,采用现场工作、室内实验、理论研究、数值分析、成果集成应用等综合研究方法,设计了基于MapGIS 10的三维地质环境信息系统,建立了济南城区标高-350 m的三维可视化地质模型、岩溶模型和水位动态模型,形成了岩溶区三维地质建模的系统方法。为济南轨道交通建设及保泉供水提供了重要管理和应用平台,为济南城市轨道交通的规划、建设、管理提供决策依据,作出更科学的分析和预测。 相似文献
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Emily Keeble David I. Whiteside Michael J. Benton 《Proceedings of the Geologists' Association. Geologists' Association》2018,129(2):99-119
Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco. 相似文献
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Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414. 相似文献
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The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts 总被引：4，自引：0，他引：4
The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H2O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H2O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species. 相似文献
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Emmanuel Skourtsos Daniel Vachard Alexandra Zambetakis-Lekkas Rossana Martini Louisette Zaninetti 《Comptes Rendus Geoscience》2002,334(12):925-931
Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931. 相似文献
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正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.) 相似文献
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正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.) 相似文献
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正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.) 相似文献
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正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus., 相似文献
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正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an 相似文献
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正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of 相似文献