摘要
夜间灯光数据具有反映人类活动的特点,其数据变化与电力设施运行情况、建筑物和其他发光物体息息相关,因此近年来被广泛应用于各类科学研究中。本文从夜间灯光数据特点出发,以夏河MS5.7地震灾区为研究区,利用多时相NPP-VIIRS夜间灯光数据,经过数据预处理后获得三种灯光指数,从而分析灾区的夜间灯光变化,为地震应急救援工作提供一种震后灾情信息获取的途径和方法,为甘肃县级尺度的地震应急工作提供另一种思路。
Night light data can reflect human activities,and its variation is closely related to the operation of electrical facilities,buildings,and other luminous objects.Thus,these data have been widely used in various scientific research.Based on the characteristics of multitemporal NPP-VIIRS night light data,this study obtained three night light indexes to analyze the change of night light in the disaster region of the Xiahe MS5.7 earthquake.Results showed that the NPP-VIIRS data can provide a method of acquiring disaster information after earthquakes,thus providing another perspective for earthquake emergency in Gansu Province at the county scale.
作者
李晓雪
马小平
刘岸果
朱瑞
LI Xiaoxue;MA Xiaoping;LIU Anguo;ZHU Rui(Gansu Earthquake Agency, Lanzhou 730000, Gansu, China)
出处
《地震工程学报》
CSCD
北大核心
2020年第5期1232-1235,1269,共5页
China Earthquake Engineering Journal
基金
甘肃省地震局中国地震局兰州地震研究所地震科技发展基金项目(2020Q5)。
