历史地震图数据库及共享平台

历史地震图纸是记录历史地震的重要资料,在进行电子化之前,图纸的唯一性限制了其大范围共享的可能。电子化处理是抢救和保护历史地震图纸的重要手段,可以有效发挥其使用及研究价值,具有重要意义。为此研制历史地震图数据库及共享平台,对北京国家地球观象台现存的60万张历史地震图纸进行高精度(600 dpi)扫描和规则化命名,利用数据库和FastDFS分布式文件系统进行统一存储,并采用多级缩略图和网络服务方式提供数据共享服务。

Historical seismogram database and sharing platform based on the distributed file system

Historical seismograms are important data recording historical earthquakes. Before the electronic process, the uniqueness of the seismograms limits the possibility of the large-scale sharing. The electronic processing is an important method to rescue and protect the historical seismograms, which can give full play to its usage and research value, and is of great significance. To this end, this project develops the database and sharing platform of the historical seismograms.600 thousand historical seismograms existing at Beijing National Earth Observatory were scanned with high precision (600 dpi) and named regularly. Then they were stored uniformly by the database and FastDFS distributed file system. Finally, the data sharing services was provided using the multistage thumbnails and web services.