This paper outlines the concept , role and meaning , and standard of me tadata firstly . on the basis of the content standard of metadata for " nredis " , combinated with the technology of asp . net , this paper designs a metadata information system for digital geological map based on the b / s mode . the system implements mainly four functions : the browse of metadata standard , the input of metadata , the query of metadata and the maintenance of metadata . this system provides the academic bases and technical prototype for constructing national spatial information infrastructure ( nsii ) and digital earth , at the same time , it will promote the sharing of geo - spatial information and propel the progress of technology . at last , the result of the researching and studying is summarized and the future development tendency is expected in this paper 并以“ nredis ”元数据内容标准草案为标准，结合asp . net技术，设计了一个基于b s模式的数字地质图元数据信息系统，系统主要实现了元数据标准的浏览、元数据输入、元数据查询和元数据维护四大功能，为国家空间信息基础设施和数字地球的建设提供了一定的理论基础和技术原型，对地理空间信息的网络发布和共享具有积极的推动作用和深远的社会意义。
On the basis of the content standard of metadata for federal geographical data committee and combined with the technology xml , this paper designs a geo - spatial metadata management system . this system implements mainly five functions : the register , the browser , the input , the management of metadata and the application instance of metadata . this system provides the academic bases and technical prototype for constructing the national spatial information infrastructure 并以美国联邦地理数据委员会的元数据内容标准草案为标准，结合xml技术，设计了一个基于xml的网络空间信息元数据管理系统，系统主要实现了元数据注册、元数据浏览、元数据输入、元数据管理和元数据应用实例五大功能，为国家空间信息基础设施和数字地球的建设提供了一定的理论基础和技术原型，对地理空间信息的网络发布和共享具有积极的推动作用和深远的社会意义。
This article , just according to the current situations and development trends of e - government construction of our country , propose setting up the e - government systematic model based on web service , in order to solve doing things in his own way , communicating , repeated construction each other between the e - government system existing at present , difficult to promise information sharing ( especially gis relevant information ) and platform person who share issue , make the e - government affairs built and reach and improve government ' s working efficiency , lower costs and promoting basic goals , such as economy and social information - based process , etc . the study focal point of this thesis is to lead theory of web service into e - government constructions , probe into how apply web service to gis and oa and the relevant technological field with the work and apply to the e - government with the form of geospatial information service and distribute workflow , try to take the advantage of interoperation of web service to overcome the system deficiency in using the mode of existing e - government 本文正是根据我国电子政务建设的现状和发展趋势，提出建立基于webservice ( web服务)的电子政务系统模型，以解决目前存在的电子政务系统之间各自为政、互不相通、重复建设，难以做到信息共享(尤其是gis相关信息)和平台共享等问题，使电子政务建设达到提高政府工作效率、降低成本和推动经济和社会信息化进程等基本目标。论文研究重点是在电子政务建设中引入webservice的理念，探讨如何将webservice应用于gis领域、 oa领域和其它相关领域(如pki体系) ，以地理空间信息服务( geospatiallnformationservice )和分布式工作流( distributeworkflow )的形式应用于电子政务系统，充分发挥webservice互操作性的优势以克服现有电子政务系统在应用模式方面的不足。
The compute technology based on the high resolution dem . we used 1km 1km dem and pci - geomatica software to deal with the multitudinous geo - information data , and evaluated every grid point landform shadow status . the results showed the landform well 3 、地理空间信息技术在计算地形因子对散射辐射的影响时，利用了全国1km 1km分辨率的数字高程模型( dem ) ，以栅格数据形式，在pcigeomatica软件支持下，计算每个格点的遮蔽状况及相关地形参数，结果表明，地形作用的表现效果良好。
Digital earth shows great prospects for next generation of global information infrastructure , and the research on geospatial information sharing and interoperation is becoming the frontier of key technology of digital earth construction . based on the opengis standard and the xml standard , geospatial object markup language - geoml , which can be used to transmit , display , sharing and interoperation the electronic map on internet , has been proposed for the first time in this paper . the content of geoml standard has been detailed , also the prototype system used for testing the standard has been designed and implemented , and the demo is presented . the result shows that publishing , sharing and interoperation of geospatial information on internet intranet have been come into true 数字地球为信息社会的未来发展展示了美好前景，而研究地理空间信息共享与互操作正在成为数字地球建设关键技术的前沿。作者基于opengis规范和xml标准，首次提出基于internet的地理空间信息标志语言- geoml来实现地理空间信息共享和互操作，研究并设计了可在internet上传输显示和共享电子地图的geoml标准规范内容，并设计实现了检验该标准规范的原型系统，给出了示范。检验证明，利用该标准规范可初步达到地理空间信息在internet intranet上的发布共享和互操作。
The goal of this research is how to standardize and simplify the implementation process of geospatial web services in particular , and web services in the general domain , to enable the service requesters to get the appropriate result without needing to know how service providers have developed the web services 本文研究的目标在于如何规范和简化web服务，特别是地理空间信息web服务的实现过程，使得服务请求者可以获取正确的结果，而不需要知道服务提供者是如何开发web服务的。
Geography information system ( gis ) with the arithmetic figure re - fleets the earth space that the human rely for and every kind of the changing space data . which describes the characteristic attribute of the space data and supports to input , output , save or show the space data and the property data . simultaneity it proceeds the search of the geography space information and synthesize analysis to make policy with the assistance 地理信息系统( geographicalinformationsystem ，简称gis )以数字化的形式反映人类社会赖以生存的地球空间和变迁的各种空间数据以及描述这些空间数据特征的属性，支持空间数据及其属性数据的输入输出、存储、显示以及进行地理空间信息的查询、综合分析和辅助决策。
