共查询到20条相似文献，搜索用时 46 毫秒
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2016年,不动产统一登记正式实施,不动产要素数据和属性的复杂性对空间地理信息提出了更高的要求。传统二维地理信息数据仅仅是平面的数据,无法实现对三维空间管理的需要。倾斜摄影测量是近年来发展十分迅速的一项高新测绘技术,能够以大范围、高精度、高清晰的方式全面感知复杂场景,获取高分辨率的数字地面模型、逼真的真正射影像和精细的真三维城市模型等测量产品,其中,精细化的三维模型作为城市地理空间框架的重要新型数据,为城市规划、建设、管理和信息化提供三维空间环境,更能反映真实的现实世界,目前已在许多行业得到应用。将该模型应用于不动产统一登记,对于实施三维不动产登记管理,提高不动产空间管理的能力具有重要意义。 相似文献
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数字正射影像具有地图的几何特征和影像特征,直观易读、信息量丰富、获取快捷,已经得到社会各界的高度认可,成为应用越来越广泛的基础地理数据资源。本文从海量数字正射影像数据管理与分发服务的角度出发,通过对空间数据库技术的发展趋势探讨,结合ArcSDE空间数据引擎的体系结构和数据模型,针对国家基础数字正射影像的数据源特点和建库要求,提出了基于ArcSDE的国家基础数字正射影像数据库建设思路和解决方案,开展了基于ArcSDE的国家基础数字正射影像数据库的存储模式研究和集成建库实践,实现了国家级海量数字正射影像数据的有效组织、安全存储、统一管理和分发服务。 相似文献
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针对湖南省不动产统一登记基础数据建设项目中1:2000DLG(数字线划图)数据入库质量检查内容繁杂、过程繁琐的问题,研究总结出了入库质量检查的内容、方法、方式和流程,并开发了检查软件。应用结果表明,这些措施有效提高了DLG数据入库质量检查的准确性和效率。 相似文献
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<正>ADS80推扫式相机由瑞士徕卡公司生产,该系统集成了CUS6IMU、GPS设备,采用POS、GPS精确导航定位定姿,可同时获得前视、底点、后视,具有100%三度重叠、连续无缝的地面立体影像。其获取的高精度影像数据经数据处理后可以直接应用在航测大比例尺成图的作业上。结合实际生产任务,阐述ADS80航摄仪利用无控制测量进行无约束空中三角测量的方法,以满足制作1:2000大比例尺地形图 相似文献
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正不动产登记数据是支撑统一不动产登记信息系统运行的核心,是完成业务办理的基础和重要依据。统一不动产登记,提高不动产登记业务办理效率的重要前提是不动产登记数据的规范、准确、完整和统一。因此,我们需要制定完善的不动产登记数据整合机制。不动产登记数据整合是将格式不同、介质不同的分散存储的不动产登记信息进行搜集、梳理、规范化与整合,建成符合统一不动产登记系统数据库规范的不动产登记数据,为不动产登记系统的正常运 相似文献
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《国土资源导刊(湖南)》2018,(4)
本文根据湖南省不动产统一登记基础数据数字线划图成果的总体验收情况,从生产角度出发对生产中各个关键环节进行分析和研究,总结出基于立体模型的采集方法下生产不动产数字线划图在质量控制方面应注意的关键节点、工序及薄弱环节,明确检查验收的重点要点,为我省今后数字线划图成果质量控制提供指导意义。 相似文献
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吴建军 《资源导刊(河南)》2019,(1)
<正>2018年12月27日,按照自然资源部工作要求,河南省测绘地理信息局完成"三调"正射影像生产任务,并提交成果。正射影像生产是做好"三调"的前提和基础工作。该局根据影像覆盖情况,合理调度,科学组织,抽调下属单位的精兵强将承担正射影像生产任务,并充分利用已有的遥感影像、控制成果、数字高程模型以及以国产卫星为主的优于1米分辨率遥感影像,进行正射影像图制 相似文献
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"生产1∶2000正射影像图数据效益怎样?经费投入多大?"
"就目前来讲,1∶2000正射影像图仅能满足数字城市和农村集体土地确权登记发证.从长远意义讲,对耕地保护、地理国情监测、城管、林业、交通、农业、公安、应急、安监、环保等数十个部门都有重要作用.只要用到地图,1∶2000正射影像图就能派上用场,它比其他地图更具有真实性和可读性,是真实地表的完美反映.经费大约是每平方公里100元." 相似文献
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地形级实景三维主要由数字高程模型与数字正射影像经实体化,并融合实时感知数据构成。高程模型（DEM）作为一种重要的基础地理测绘产品,其生产及快速更新具有重要意义。本文对特征线自动提取与处理和道路面高程恢复及异常处理等关键技术进行了研究,形成了湖南省基于既有不动产测绘成果生产省域2 m格网高精度DEM的技术方法,实现实用型地形级实景三维建设。实验表明该方法可有效提高地形级实景三维的生产效率和成果精度。 相似文献
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The ability of cell to modulate the fluidity of plasma membrane was crucial to the survival of microorganism at low temperature. Plasma membrane proteins, fatty acids and carotenoids profiles of Antarctic psychrophilc yeast Rhodotorula sp. NJ298 were investigated at -3 ℃, 0 ℃ and 8 ℃. The results showed that plasma membrane protein content was greater at -3 ℃ than that at 8 ℃, and a unique membrane polypeptide composition with an apparent molecular mass of 94.7 kDa was newly synthesized with SDS-PAGE analysis; GC analysis showed that the main changes of fatty acids were the percentage of unsaturated fatty acids (C18∶ 1 and C18∶ 2) and shorter chain saturated fatty acid (C10∶ 0) increased along with the decrease of the culture temperature from 8 ℃ to -3 ℃; HPLC analysis indicated that astaxanthin was the major functional carotenoids of the plasma membrane, percentage of which increased from 54.6±1.5% at 8 ℃ to 81.9±2.1% at -3 ℃. However the fluidity of plasma membrane which was determined by measuring fluorescence anisotropy was similar at -3 ℃, 0 ℃ and 8 ℃. Hence these changes in plasma membrane's characteristics were involved in the cellular cold-adaptation by which NJ298 could maintain normal plasma membrane fluidity at near-freezing temperature. 相似文献
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《极地研究(英文版)》2014,(4)
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 comprehensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose 相似文献
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《中国海洋大学学报(英文版)》2014,(4)
<正>Copyright Submfnion of a roanusatpt inks:that the work described has not been published before(exoept In the form of an abstrW or as part of a published lecture,review,or thesis);that it is not under consideration for publication elsewhere that its publication has been approved by ail 相似文献
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《中国海洋大学学报(英文版)》2014,(6)
<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 results on oceanography and marine fisheries.The fieldcovered include the physical,chemical,biological,geo- 相似文献
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Massimo GRECO 《山地科学学报》2014,(6):1383-1384
<正>The 35th IAHR World Congress was held in Chengdu,China from September 8 to September 132013.The title of the conference was:"The Wise Finds Pleasure in Water:Meandering through Water Science and Engineering".During the congress,1239 papers were presented in 139sessions for oral presentations and 7 sessions for poster presentations.After the Congress,a Committee was appointed to select some of the best papers presented at the Congress for publication,after a 相似文献
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As an important component of the cryosphere,sea ice is very sensitive to the climate change.The study of the sea ice physics needs accurate sea ice thickness.This paper presents an electromagnetic-induction(EM) technique which can be used to measure the sea ice thickness distribution efficiently,and the successful application in Bothnian Bay.Based on the electromagnetic field theory and the electrical properties of sea ice and seawater,EM technique can detect the distance between the instrument and the ice/water interface accurately,than the sea ice thickness is obtained.Contrastive analysis of the apparent conductivity data obtained by EM and the value of drill-hole at same positions allows a construction of a transformable formula of the apparent conductivity to sea ice thickness.The verification of the sea ice thickness calculated by this formula indicates that EM technique is able to get reliable sea ice thickness with average relative error of only 12%.The statistic of all ice thickness profiles shows that the level ice distribution in Bothnian Bay was 0.4-0.6 m. 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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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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