震害预测空间数据的更新策略

Updating Tactics of Spatial Data for Earthquake Disaster Prediction

由于震害预测空间数据具有图多面广和二次生产数据的特点,数据更新的问题还没有根本解决。指出我国空间数据封闭式管理方式是导致其数据类型和格式不一致、坐标系统不一致、比例尺不一致的原因,震害预测空间数据更新的困难是没有建立统一的空间数据管理平台、城市电子地图不能共享及标准不统一、与基础属性数据脱节、震害预测分析程序未实现模块化嵌入、防震减灾信息系统的管理跟不上等因素所致。提出了震害预测空间数据的更新策略,包括建立统一的空间数据管理平台、建立城市信息共享、预测结果数据的更新、建立数据编码对照表、建立完善的管理和数据更新机制等,并详细介绍了建立统一的空间数据管理平台的功能。

As the spatial data for earthquake disaster prediction has a characteristic of a great many maps, broad covering and quadratic data production, questions of the data updating have not been completely solved. In this paper, it is indicated that the ways of closed management of spatial data in our country leads to much disagreement of the data in type and format, coordinate system and scale. The spatial data for earthquake disaster prediction is unable to be updated because there is no common data management platform, no shared city electronic map, and no accord criterion of city electronic map. Spatial data is disjointed with basic attribute data; there is no analyzing modularization for earthquake disaster prediction to be built-in the information system for preventing and mitigating earthquake disasters and no good ways of managing the system, etc.. Updating tactics of spatial data for earthquake disaster prediction are proposed as follows: to establish centralized spatial data management platform, to establish shared city information, to update result data for earthquake disaster prediction, to establish comparable data-coding table, to establish system of perfect management and data updating, etc.. The function of establishing centralized spatial data management platform is introduced in detail.