Zhang Qiuwen, Zhang Yan, Yang Xiaohong, Su Bin
Center for Digital Engineering and Simulation, Huazhong University of Science and Technology, 1037 Luoyu Road, Hongshan District, Wuhan 430074, China.
ScientificWorldJournal. 2014 Feb 3;2014:878149. doi: 10.1155/2014/878149. eCollection 2014.
In recent years, earthquakes have frequently occurred all over the world, which caused huge casualties and economic losses. It is very necessary and urgent to obtain the seismic intensity map timely so as to master the distribution of the disaster and provide supports for quick earthquake relief. Compared with traditional methods of drawing seismic intensity map, which require many investigations in the field of earthquake area or are too dependent on the empirical formulas, spatial information technologies such as Remote Sensing (RS) and Geographical Information System (GIS) can provide fast and economical way to automatically recognize the seismic intensity. With the integrated application of RS and GIS, this paper proposes a RS/GIS-based approach for automatic recognition of seismic intensity, in which RS is used to retrieve and extract the information on damages caused by earthquake, and GIS is applied to manage and display the data of seismic intensity. The case study in Wenchuan Ms8.0 earthquake in China shows that the information on seismic intensity can be automatically extracted from remotely sensed images as quickly as possible after earthquake occurrence, and the Digital Intensity Model (DIM) can be used to visually query and display the distribution of seismic intensity.
近年来，世界各地地震频发，造成了巨大的人员伤亡和经济损失。及时获取地震烈度图对于掌握灾情分布、为快速抗震救灾提供支持非常必要且紧迫。与传统绘制地震烈度图的方法相比，传统方法需要在地震区域进行大量实地调查或过于依赖经验公式，遥感（RS）和地理信息系统（GIS）等空间信息技术能够提供快速且经济的方式来自动识别地震烈度。通过RS和GIS的集成应用，本文提出了一种基于RS/GIS的地震烈度自动识别方法，其中RS用于检索和提取地震造成的破坏信息，GIS则用于管理和显示地震烈度数据。中国汶川Ms8.0地震的案例研究表明，地震发生后能够尽快从遥感影像中自动提取地震烈度信息，并且数字烈度模型（DIM）可用于直观查询和显示地震烈度分布。
