【摘 要】
:
Since the proposal of Digital Earth,its research and applications are continuing to be deepened,and now Smart City is more indepth implementation of the Dig
【机 构】
:
Key Laboratory of Geo-Informatics of State Bureau of Surveying and Mapping Chinese Academy of Survey
【出 处】
:
“地理空间数据库与位置服务”国际学术会议
论文部分内容阅读
Since the proposal of Digital Earth,its research and applications are continuing to be deepened,and now Smart City is more indepth implementation of the Digital Earth.The unification of global or regional vertical datums has always been one of the main geodesy studies to achieve Smart City,as Smart City must first realize the seamless integration of multi-source geo-dataset.This paper introduces spatio-temporal data management and interactive visualization into the entire process of vertical datum modelling.We demonstrate that the efficiency of modelling is greatly improved.In this paper GIS database is used to manage all dataset such as tidal station data,gravity field model data,GPS leveling data,and vertical datum data for evaluation and analysis.We use geographic information visualization technique to graphically display the results,together with the interactive browsing,to convert tedious digital information to easy-to-understand images.Consequently,researchers can quickly and comprehensively grasp the macro and micro information.Finally,an efficient and interactive prototype operating platforms for vertical datum modeling is constructed based on GIS.
其他文献
四灵,是指我国传说中的四种动物,分别为:麟、凤、龟、龙。古人认为这些动物都是神灵之物,故称之为“四灵”。我国早在两千多年前的周代,就有这种信仰民俗,即所谓“象物”。《
目的:探讨“三区四级”预检分诊法在呼吸道传染病患者分诊中的临床应用效果。方法:随机抽样选取2018年1月1~31日及2019年1月1~31日来该院急诊科就诊的呼吸道传染病患者各300例
Localization of the rover is critical to support science and engineering operations in planetary rover missions,such as rover traverse planning and hazard a
乱拉中学和小学教师参加社会活动,是各地普遍存在着的严重现象。这种现象,在小城市和广大乡村更加突出。在那里,许多教师时常停课参加校外的中心工作和突击性的工作以及其他
The land-use pattern is one of the key study areas of the utilization of land resource、landscape ecology and the sustainable development,which has importan
近年来,以免疫检查点抑制剂(ICI)为代表性药物的肿瘤免疫治疗成为晚期恶性肿瘤重要的治疗方法。临床前研究发现,肠道微生物群紊乱会降低应用ICI患者的临床获益。最新的数据表明
The construction of platform for geoinformation common services was completed or on going in in most provinces and cities in these years in China,and the pl
With the acceleration of Chinas informatization process,our party and government take a substantive stride in advancing development and application of digit
1.本文报导了337个食物样品中的含氟量,其中包括某些地方性氟病地区所采粮食样品113个。2.在北京市正常市售食物中一般含氟很少,谷类、肉类,鱼类含量系在0.5ppm以下,蔬菜、水
1995年7月,毕业于北京林业大学的邵海荣,积极响应祖国号召,毅然放弃了在北京工作的优厚待遇,来到青藏高原当了一名汽车兵。为了尽快实现由一名地方大学生到合格军人的转变。