利用高分辨率卫星图像跟踪地震引起的线性构造变化
Use of high resolution satellite images for tracking of changes in the lineament structure, caused by earthquakes
摘要：
在过去几十年中，人们作出了巨大努力，将新的空间技术应用于研究和可能的强震预报。在这项研究中，我们使用ASTER/TERRA多光谱卫星图像的检测和分析系统的线性构造的变化之前，一个强烈的地震。线性构造是图像中的直的或稍微弯曲的特征，其可以通过基于方向滤波和/或霍夫变换的图像的特殊处理来检测。Zlatopolsy（1992年，1997年）开发的“线性特征提取和条纹统计分析”（LESSA）软件包。我们假设，线性构造允许检测，至少部分地，在地壳破裂的存在，因此使人们能够遵循与强震相关的断层和断裂系统的变化。本文分析了南美洲太平洋沿岸和XXX发生的6次里氏4.5级以上地震。它们位于季节变化小和植被有限的地区，以便于跟踪仅与地震活动性有关的特征。结果表明，地震前一个月左右，线性体的数量和方向发生了显著变化，几个月后系统又恢复到初始状态。这种效应随着地震震级的增加而增加，在聚敛板块边界（例如纳斯卡和南美洲板块）的情况下更容易检测到。所获得的结果为开发一种能够评估具有类似地质条件的地区的地震危险性的方法提供了可能性。
英文摘要：
Over the last decades strong efforts have been made to apply new spaceborn technologies to the study and possible forecast of strong earthquakes. In this study we use ASTER/TERRA multispectral satellite images for detection and analysis of changes in the system of lineaments previous to a strong earthquake. A lineament is a straight or a somewhat curved feature in an image, which it is possible to detect by a special processing of images based on directional filtering and or Hough transform. "The Lineament Extraction and Stripes Statistic Analysis" (LESSA) software package, developed by Zlatopolsy (1992, 1997). We assume that the lineaments allow to detect, at least partially, the presence ruptures in the Earths crust, and therefore enable one to follow the changes in the system of faults and fractures associated with strong earthquakes. We analysed 6 earthquakes occurred in the Pacific coast of the South America and XXX with the Richter scale magnitude >4.5. They were located in the regions with small seasonal variations and limited vegetation to facilitate the tracking of features associated with the seismic activity only. It was found that the number and orientation of lineaments changed significantly about one month before an earthquake approximately, and a few months later the system returns to its initial state. This effect increases with the earthquake magnitude, and it is much more easily detectable in case of convergent plate boundaries (for example, Nasca and South American plates). The results obtained open a possibility to develop a methodology able to evaluate the seismic risk in the regions with similar geological conditions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
