北京市城市基本比例尺地形图的更新模式

Discussion on the updating model of surveying an mapping in Beijing

基础测绘是国民经济和社会发展的一项基础性和公益性事业,广泛服务于经济建设、社会发展、国防建设和人们生活的各个领域。而基本比例尺地形图是基础测绘产品的重要组成部分。北京的城市信息化建设需要大量现势性强的基础地理信息数据。基本比例尺地形图的动态更新与维护是保证基础地理信息系统具有现势性和时态完整性的基础性、前提性工作,它不断地为地理信息系统输入着"新鲜血液"。本文对北京市基本比例尺地形图产品的数据现状、更新需求、更新模式进行了探讨。

Basic surveying and mapping is the national economic and social development of a fundamental and public undertakings,wide range of services in the economy and social development and national defense construction and people＇s life in all areas.While the basic scale topographic map surveying products is the important component.Beijing city informatization construction requires a lot of respect of fundamental geographic information data.The dynamic basic scale topographic map update and maintain the fundamental geographic information system is the guarantee with respect and tense integrity,fist work,it constantly for geographic information system input ＂fresh blood＂.Based on the basic scale topographic map of Beijing product data update demand,update status,discusses the mode.