摘要
采用月距平方法对连续的MODIS/Terra卫星遥感红外资料进行了分析,大面积大幅度升温异常提取结果显示,在四川芦山7.0级地震和甘肃岷县-漳县6.6级地震前2个月左右,红外出现升温变化,升温面积在40万平方公里以上。两次强震前经常性升温区域的分布受2级地块控制明显,与地块的运动背景比较显示,两次强震前经常性升温区域与地块的运动背景存在关联。
Based on the Brightness Temperature（BT） of MODIS satellite infrared,by using monthly departure method,anomaly is analyzed.The result shows that before the 2013 Lushan M7.0 earthquake and the 2013 Minxian M6.6 earthquake two months,anomalous increase of the BT appeared in the very large area.Before Lushan and Minxian earthquakes,distribution of anomalous increase whick recurrently appeared in one area,is obviously controlled by blocks,and it is connected with background of movement of blocks.
出处
《科学技术与工程》
北大核心
2014年第5期183-186,210,共5页
Science Technology and Engineering
基金
四川省地震局地震科技专项(LY1304)资助
