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基础地理信息动态更新技术体系初探 总被引:15,自引:2,他引:13
近年来,我国测绘部门完成了国家级基础地理信息数据库的"初始建库",基础测绘工作重点已转向持续更新和灵性服务。未来的基础地理信息"应需适时更新"将体现更新内容灵性化、更新周期适时化、更新方式多元化等特点,其主要业务模式包括变化监测、变化测定、主数据库更新和产品更新及服务四大部分。为了有效开展"应需适时更新",应构建包括动态监测与数据预处理、变化信息采集与处理、数据库与产品更新、更新信息网络化服务四大主体部分的动态更新技术体系。该体系是信息化测绘技术体系的一个重要组成部分,应加强对其关键技术的研发,开展技术装备成套化和业务体系建设。 相似文献
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《国土资源导刊(湖南)》2017,(4)
本文阐述了湖南省1:10000基础地理信息数据库更新技术规程的内容,编制原则与方法;分析介绍了规程的要点。湖南省1:10000基础地理信息数据库更新技术规程的编制应用,统一了湖南省1:10000基础地理信息数据库更新的技术标准,规范了基础测绘成果,极大地推进了测绘信息资源的共享和有效利用,为省级基础地理信息数据库更新工程的常态化动态更新、跨尺度联动更新奠定基础。 相似文献
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我国测绘和基础地理信息技术标准现状综述 总被引:3,自引:0,他引:3
主要介绍了我国测绘和基础地理信息技术标准的现状,包括已发布的国家标准和行业标准,1:10000基础地理信息数据生产与建库和国家基础地理信息系统1:50000数据库工程系列暂行技术规定,以及国家测绘局测绘标准化“十五”计划的标准化方面的情况。 相似文献
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一、概述
广东省基础地理信息数据库系统(GEOWAYF GIS)是由广东省基础地理信息中心与北京吉威数源信息技术有限公司合作开发的,集数据采集、整理、质检、管理、维护、分发和应用于一体的全省多尺度(包括1:25万、1:5万、1:1万)、多源数据类型(包括DLG、DRG、DEM、DOM、地名等多种数据类型)以及多时态的空间信息技术平台。系统建立了多级基础地理信息的数据库.实现了广东省基础地理数据的高效存储和集成化管理,并提供了数据和系统的安全控制,满足基础地理信息管理、专业分析、 相似文献
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李珵 《资源导刊(河南)》2015,(5)
<正>4月11日,数字汤阴地理空间框架建设项目设计书评审会暨启动仪式在郑州举行。数字汤阴地理空间框架建设项目是汤阴县全县信息化的公共平台和基础,系河南省数字县域地理空间框架建设试点项目,项目由汤阴县国土资源局牵头,河南省遥感测绘院提供技术支持,计划采用现代测绘技术,实施1∶1000至1∶10000系列比例尺的基础测绘,建立汤阴县全县基础地理信息数据库,并基于基础地理信息数据构建汤阴 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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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
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References: 《极地研究(英文版)》2007,18(1):73-83
Using the NCEP/NCAR reanalysis monthly 500 hPa height data on a 2.5 latitude-longitude grid and 1°×1° sea ice data,the polar vortex area,intensity index and arctic sea ice area index are calculated respectively,and the meridional distribution,period variation and the abrupts in the long range trend are analyzed to study their relationship.The results show that the meridional distribution of sea ice and polar vortex h-ave distinctive difference,the relative positions of them are different in the eastern and western hemispheres,and exept they have periods of 4 months,quasi half year,quasi year,4-5 years and 10 years commonly,and each of them has its own respective variation as well.The sea ice area is decreasing apparently since 1980's,so is the polar vortex area,but their abrupt changge time are different totally.The area of sea ice and polar vortex has prominent positive correlation,but the relationship of sea ice intensity,polar vortex intensity,polar vortex area is complicated. 相似文献
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《中国海洋大学学报(英文版)》2014,(3):I0001-I0001
<正>The Journal of Ocean University of China(Oceanic and Coastal Sea Research)is a comprehensive academic quarterly sponsored by the Ocean University of China,published one volume per year.This journal is devoted to the publication of the theoretical and applied research 相似文献